Intel System Board G4H875-B manual

935-G4H875-000 A77100333 G4H875-N G4H875-C G4H875-B Re v . A+ System Board User’ s Man ual[...]

Cop yright This publication contains information that is protected by copyright. No par t of it may be reproduced in an y form or by an y means or used to make any transformation/adaptation without the prior wr itten permission from the copyr ight holder s. This publication is pro vided for infor mational purposes only . The manufacturer makes no r[...]

Batter y: • Danger of explosion if batter y incor rectl y replaced. • Replace only with the same or equivalent type recommend by the manufacturer . • Dispose of used batter ies according to the batter y manufacturer’ s instr uctions. Joystick or MIDI por t: • Do not use any joystick or MIDI device that requires more than 10A cur rent at 5[...]

Notice An electronic f ile of this manual is included in the CD . T o view the user’ s man ual, inser t the CD into a CD-ROM drive . The autor un screen (Main Board Utility CD) will appear . Click “User’ s Manual” on the main menu.[...]

T able of Contents Chapter 1 - Introduction 1.1 Features and Specifications.................................................................................. 1.2 Hyper -Threading T echnology Functionality Requirements..... 1. 3 Package Checklist.........................................................................................................[...]

Introduction 1 6 Appendix A - Enabling the Hyper -Thr eading T echnolog y A .1 Enabling the Hyper -Threading T echnology ......................................... Appendix B - CPU Fan Protection B .1 CPU Fan Protection............................................................................................. Appendix C - CPU T emperatur e Pr otec[...]

1 Introduction 7 1.1 Features and Specifications 1.1.1 Features Chipset • Intel ® 875P chipset - Intel ® 82875P Memor y Controller Hub (MCH) - Intel ® Hance Rapids I/O Controller Hub Processor The system board is equipped with Socket 478 for installing one of the following suppor ted processor s. • Intel ® P entium ® 4 (Prescott and Nor th[...]

Introduction 1 8 Perf ormance Acceleration T echnology (P A T) P A T mode is suppor ted onl y when the system uses DDR400 with 800MHz FSB CPU . P A T perf or ms data transactions directly from the CPU to the system memor y , b ypassing the normal path of oper ation. This reduces the MCH timing therefore pro viding improved system performance. Expan[...]

1 Introduction 9 Onboard Audio Features • 18-bit stereo full-duplex codec with independent variable sam- pling rate • High quality differential CD input • T r ue stereo line lev el outputs • 2-channel audio output Onboard LAN Features • 82547EI Gigabit LAN CSA interface (G4H875-N only) - Integrated power management functions - Full duplex[...]

Introduction 1 10 USB Ports The system board suppor ts USB 2.0 and USB 1.1 por ts. USB 1.1 suppor ts 12Mb/second bandwidth while USB 2.0 suppor ts 480Mb/second bandwidth providing a mar ked impro vement in device transfer speeds between your computer and a wide range of simultaneously accessible external Plug and Play peripherals. BIOS • Award BI[...]

1 Introduction 11 I/O Connectors • 1 connector for 2 additional external USB 2.0/1.1 por ts (G4H875-B only) • 2 connector s for 2 exter nal ser ial por ts (G4H875-N only) • 1 front audio connector for external line-out and mic-in jacks • 1 connector for an external game/MIDI por t • 2 inter nal audio connector s (CD-in and AUX-in) • 1 c[...]

Introduction 1 12 1.1.3 Intelligence CPU Fan Protection The CPU Fan Protection function has the capability of monitoring the CPU fan when the system boots. Once it has detected that the CPU fan did not rotate, 5 warning beeps will sound then the system will automatically po wer -off. This preventiv e measure has been added to protect the CPU from d[...]

1 Introduction 13 W a k e-On-LAN This feature allo ws the networ k to remotel y wake up a Soft P ow er Down (Soft-Off) PC . It is suppor ted via the onboard LAN por t, via a PCI LAN card that uses the PCI PME (P ow er Management Event) signal or via a LAN card that uses the W ake-On-LAN connector . How ev er , if your system is in the Suspend mode [...]

Introduction 1 14 A CPI The system board is designed to meet the A CPI (Advanced Con- figuration and P ower Interface) specif ication. A CPI has ener gy sa ving features that enab les PCs to implement P ow er Management and Plug-and-Play with operating systems that suppor t OS Direct P ower Management. Currently , only Windows ® ® ® ® ® 98SE/2[...]

1 Introduction 15 1. 2 Hyper -Thr eading T echnolog y Functionality Requirements Enabling the functionality of Hyper -Threading T echnology for y our computer system requires ALL of the follo wing platforms. Components: • CPU - an Intel ® P entium ® 4 Processor with HT T echnology • Chipset - an Intel ® chipset that suppor ts HT T echnology [...]

16 2 Hardware Installation 2.1 System Board La y out Chapter 2 - Hardware Installation G4H875-N KB/Mouse COM 1 COM 2 Parallel LAN 1; USB 1-2 Intel Gigabit 82547EI Intel 82551QM Line-out Line-in Mic-in LAN 2; USB 3-4 Sock et 478 1 PS/2 KB/Mouse power select (JP2) 1 USB 1-4 power select (JP3) Intel 82875P AG P PCI Slot 1 PCI Slot 2 PCI Slot 3 1 Chass[...]

17 2 Hardware Installation KB/Mouse COM 1 COM 2 Parallel LAN; USB 1-2 Intel 82551QM Line-out Line-in Mic-in USB 3-4 Sock et 478 1 PS/2 KB/Mouse power select (JP2) 1 USB 1-4 power select (JP3) Intel 82875P AG P PCI Slot 1 PCI Slot 2 PCI Slot 3 1 Chassis open (J6) PCI Standby LED BIOS I/O 1 Game AUX-in 1 CD-in Audio Codec 1 Front audio 1 S/PDIF 1 IrD[...]

18 2 Hardware Installation G4H875-B Note: The illustrations on the following pages are based on the G4H875-N system board. KB/Mouse COM 1 COM 2 Parallel LAN 1; USB 1-2 Intel 82551QM Line-out Line-in Mic-in Sock et 478 1 PS/2 KB/Mouse power select (JP2) 1 USB 1-2 power select (JP3) Intel 82875P AG P PCI Slot 1 PCI Slot 2 PCI Slot 3 1 Chassis open (J[...]

19 2 Hardware Installation 2 1 ON 2.2 System Memor y W arning: Electrostatic discharge (ESD) can damage your system board, processor , disk dr ives , add-in boards , and other components. P erf or m the upgrade instruction procedures described at an ESD workstation only . If such a station is not available, you can provide some ESD protection by we[...]

20 2 Hardware Installation The system board suppor ts the follo wing memor y interface . Single Channel (SC) Data will be accessed in chunks of 64 bits (8B) from the memor y channels. Virtual Single Channel (VSC) If both channels are populated with different memor y configur ations, the MCH defaults to Vir tual Single Channel. Dual Channel (DC) Dua[...]

21 2 Hardware Installation The table below lists the various optimal operating modes that should be conf igured f or the memor y channel operation. Config No memor y Single channel A Single channel A Single channel A Single channel B Single channel B Single channel B Vir tual single channel Vir tual single channel Vir tual single channel Vir tual s[...]

22 2 Hardware Installation Config Dynamic Mode Addressing Dynamic Mode Addressing Dynamic Mode Addressing Dynamic Mode Addressing Dynamic Mode Addressing Dynamic Mode Addressing DDR 1 E P(*)(1,3) DS P(*)(1,3) DS E P(*)(1,3) SS P(*)(1,3) SS DDR 2 P(*)(2,4) DS E P(*)(2,4) DS P(*)(2,4) SS E P(*)(2,4) SS DDR 3 E P(*)(1,3) DS P(*)(1,3) DS E P(*)(1,3) SS[...]

23 2 Hardware Installation 2.2.1 Installing the DIM Module A DIM module simply snaps into a DIMM socket on the system board. Pin 1 of the DIM module must correspond with Pin 1 of the socket. 1 . Pull the “tabs” which are at the ends of the socket to the side. 2 . P osition the DIMM abo ve the sock et with the “notch” in the module aligned w[...]

24 2 Hardware Installation 2.3 CPU 2.3.1 Ove r vie w The system board is equipped with a surface mount 478-pin CPU socket. This sock et is exclusiv ely designed f or installing an Intel processor . 2.3.2 Installing the CPU 1 . Locate Socket 478 on the system board. 2. Unlock the socket by pushing the lever sideways, away from the socket, then lifti[...]

25 2 Hardware Installation 3 . P osition the CPU abov e the socket then align the gold mar k on the corner of the CPU (designated as pin 1) with pin 1 of the socket. Important: Handle the CPU by its edges and avoid touching the pins. Gold mar k 4. Inser t the CPU into the socket until it is seated in place . The CPU will fit in onl y one orientatio[...]

26 2 Hardware Installation 5. Once the CPU is in place, push down the lever to lock the socket. The lever should click on the side tab to indicate that the CPU is completely secured in the socket. 2.3.3 Installing the Fan and Heat Sink The CPU must be kept cool by using a CPU fan with heatsink. Without sufficient air circulation across the CPU and [...]

27 2 Hardware Installation 1. The system board comes with the retention module base already installed. Retention module base Retention hole Retention hole Retention hole Retention hole 2. P osition the fan / heat sink and retention mechanism assembly on the CPU, then align and snap the retention legs’ hooks to the retention holes at the 4 cor ner[...]

28 2 Hardware Installation 3. The retention lever s at this time remains unlocked as sho wn in the illustration below . Retention lever Retention lever 4. Mov e the retention lev er s to their opposite directions then push them down. This will secure the fan / heat sink and retention mechanism assembly to the retention module base. Note: Y ou will [...]

29 2 Hardware Installation 2 1 O N 2.4 Jumper Settings 2.4.1 Clearing CMOS Data If you encounter the following, a) CMOS data becomes corrupted. b ) Y ou forgot the super visor or user password. c ) Y ou are unable to boot-up the computer system because the processor’s ratio/clock was incorrectly set in the BIOS. you can reconfigure the system wit[...]

30 2 Hardware Installation 4 . After powering-on the system, press <Del> to enter the main menu of the BIOS. 5 . Select the Frequency/V oltage Control submenu and press <Enter>. 6 . Set the “CPU Clock Ratio” or “CPU Clock” f ield to its default setting or an appropriate bus clock or frequency ratio. Refer to the Frequency/V olta[...]

31 2 Hardware Installation 2 1 ON 2.4.2 PS/2 K eyboar d/Mouse W ak e Up ! JP2 2-3 On: 5VSB 1-2 On: VCC (default) 3 1 2 3 1 2 This jumper is used to select the power of the PS/2 Keyboard/ Mouse por t. Selecting 5VSB will allo w y ou to use the W ak e-On- PS/2 Keyboard/Mouse function. BIOS Setting: “P ow er On Function” (“Super IO Device” sec[...]

32 2 Hardware Installation 2 1 ON 2.4.3 USB K eyboar d W ak e Up These jumper s are used to select the power of the USB por ts. Selecting 5VSB will allow y ou to use the W ake-On-USB Key- board function. On the G4H875-N and G4H875-C system boards, JP3 is for setting USB 1-4 that are at the rear I/O panel. USB 3-4 are not present at the rear I/O pan[...]

33 2 Hardware Installation 2 1 O N 2.4.4 P o w e r -on Select ! 1-2 On: Power-on via power button (default) 3 1 2 3 1 2 JP6 2-3 On: Power-on via AC power This jumper is used to select the method of powering on the system. If you want the system to po wer -on once A C pow er comes in, set JP6 pins 2 and 3 to On. If you want to use the power button, [...]

34 2 Hardware Installation SW1 is used to conf igure the BIOS Wr ite Protect function. When this function is enabled, the system will be protected from unneces- sar y updating or flashing of the BIOS. It secures the BIOS theref ore any updates to it will not take effect. 1 On: The BIOS is basically protected but will allow you to update changes ONL[...]

35 2 Hardware Installation 2.5 Rear Panel I/O Ports PS/2 K/B COM 1 USB 1-2 USB 3-4 COM 2 PS/2 Mouse LAN 2 Parallel LAN 1 Line-out Line-in Mic-in G4H875-N PS/2 K/B COM 1 USB 1-2 COM 2 PS/2 Mouse Parallel LAN Line-out Line-in Mic-in G4H875-B PS/2 Mouse LAN Parallel USB 4 Line-out Line-in Mic-in PS/2 K/B COM 1 USB 1-2 USB 3 COM 2 G4H875-C[...]

36 2 Hardware Installation 2 1 O N 2.5.1 PS/2 Mouse and PS/2 K eyboard P or ts The system board is equipped with an onboard PS/2 mouse (Green) and PS/2 keyboard (Pur ple) por ts - both at location CN1 of the system board. The PS/2 mouse por t uses IRQ12. If a mouse is not connected to this por t, the system will reser ve IRQ12 for other expansion c[...]

37 2 Hardware Installation 2 1 ON COM 1 COM 2 2.5.2 Serial Ports " G4H875-N is equipped with 2 onboard ser ial por ts (COM 1: CN3 and COM 2: CN4) - both in T eal/T urquoise color . It is also equipped with two 9-pin connector s (COM 3: J14 and COM 4: J16) for connecting exter nal serial por ts. G4H875-C and G4H875-B are each equipped with COM [...]

38 2 Hardware Installation 2 1 ON 2.5.3 Parallel Port The system board has a standard par allel por t (Burgundy) at location CN7 for interfacing y our PC to a par allel pr inter . It sup- por ts SPP , ECP and EPP . Setting SPP (Standard P ar allel P or t) ECP (Extended Capabilities P or t) EPP (Enhanced P ar allel P or t) Function Allows normal spe[...]

39 2 Hardware Installation 2 1 ON 2.5.4 Universal Serial Bus Ports The system board suppor ts USB 2.0/1.1 por ts. USB allows data exchange between your computer and a wide range of simulta- neously accessible external Plug and Play peripherals. G4H875-N and G4H875-C are each equipped with four onboard USB 2.0/1.1 por ts (Black) are at locations CN5[...]

40 2 Hardware Installation BIOS Setting Configure USB in the Integrated P e ripher als submenu (“Onboard Device” section) of the BIOS. Refer to chapter 3 for more informa- tion. Driver Installation Y ou may need to install the proper dr ivers in your oper ating system to use the USB device . Ref er to your operating system’ s manual or docume[...]

41 2 Hardware Installation 2.5.5 RJ45 LAN Port G4H875-N is equipped with 2 onboard RJ45 LAN por ts. LAN 1 which is controlled by the Intel 82551QM chip is at location CN6 and LAN 2 which is controlled by the Intel Gigabit 82547EI chip is at location CN5. G4H875-C and G4H875-B are each equipped with the LAN 1 por t onl y . LAN allows the system boar[...]

42 2 Hardware Installation 2 1 ON Line-out Line-in Mic-in " 2.5.6 Audio " Front audio Mic-in, Line-in and Line-out The mic-in, line-in and line-out jacks are at location CN2 of the system board. A jack is a one-hole connecting interface for inser t- ing a plug. • Mic-in Jack (Pink) This jack is used to connect an external microphone. ?[...]

43 2 Hardware Installation The front audio is disabled. The rear audio is enabled. The front audio is enabled. The rear audio is disabled. Pins 5-6 and 9-10 shor t (default) Pins 5-6 and 9-10 open Fr ont Audio The front audio connector (J3) allows you to connect to the line-out and mic-in jacks that are at the front panel of your sys- tem. Using th[...]

44 2 Hardware Installation 2 1 O N 2.6 I/O Connectors 2.6.1 Game/MIDI Port The system board is equipped with a 15-pin connector at loca- tion J2 for connecting an external game/MIDI por t. The game/ MIDI por t may be mounted on a card-edge bracket. Install the card-edge bracket to the system chassis then connect the game/ MIDI por t cab le to conne[...]

45 2 Hardware Installation 2 1 O N 2.6.2 Internal Audio Connectors The CD-in (J1) and AUX-in (J4) connector s are use d to receive audio from a CD-ROM drive, TV tuner or MPEG card. 14 Right audio channel Left audio channel Ground Ground 14 Right audio channel Left audio channel Ground Ground AUX-in CD-in "[...]

46 2 Hardware Installation 2 1 ON 2.6.3 S/PDIF Connector " The S/PDIF connector (J5) is used to connect external S/PDIF por ts. The S/PDIF por ts may be mounted on a card-edge bracket. Install the card-edge bracket to the system chassis then connect the audio cable connector to J5. Make sure pin 1 of the audio cable connector is aligned with p[...]

47 2 Hardware Installation 2 1 O N 2.6.4 Flopp y Disk Driv e Connector The system board is equipped with a shrouded floppy disk drive connector f or connecting a standard floppy disk drive . T o prev ent improper floppy cable installation, the shrouded floppy disk header has a keying mechanism. The 34-pin connector on the floppy cable can be placed[...]

48 2 Hardware Installation 2 1 ON 2.6.5 Serial A T A Connectors Connect one end of the SA T A cab le to J22 (SA T A 2) or J23 (SA T A 1) and the other end to your serial A T A device . BIOS Setting Configure the Serial A T A dr ives in the Integrated P er ipher als submenu (“OnChip IDE Device” section) of the BIOS. Refer to chapter 3 for more i[...]

49 2 Hardware Installation 2 1 O N 2.6.6 IDE Disk Drive Connector The system board is equipped with two shrouded PCI IDE header s that will interface four Enhanced IDE (Integrated Drive Electronics) disk dr iv es. T o prevent improper IDE cab le installation, each shrouded PCI IDE header has a keying mechanism. The 40-pin connector on the IDE cable[...]

50 2 Hardware Installation Note: Refer to your disk drive user’s manual for information about selecting proper drive switch settings. Adding a Second IDE Disk Drive When using two IDE drives, one must be set as the master and the other as the slav e . Follo w the instr uctions provided b y the dr ive manufacturer f or setting the jumper s and/or [...]

51 2 Hardware Installation 2 1 ON 2.6.7 IrD A Connector Connect y our IrD A cable to connector J7 on the system board. Note: The sequence of the pin functions on some IrDA cable may be reversed from the pin function defined on the system board. Make sure to connect the cable to the IrDA connector according to their pin functions. BIOS Setting Conf [...]

52 2 Hardware Installation 2 1 O N ! 2.6.8 Cooling Fan Connectors Connect the CPU fan’ s cable connector to the CPU fan connec- tor (J13) on the system board. Connect the Intel 875P fan’ s cable connector to the NB fan connector (J27) on the system board. The chassis fan (J19) and second fan (J25) connector s are used to connect additional cool[...]

53 2 Hardware Installation 2 1 ON 2.6.9 W a k e-On-LAN Connector Y our LAN card package should include a cab le . Connect one end of the cable to the wakeup header on the card and the other end to location J10 on the system board. The netw or k will detect Magic Pa ck et and asser t a wak e up signal to po wer -up the system. Ref er to the add-in c[...]

54 2 Hardware Installation 2 1 ON 2.6.10 Chassis Open Connector 2 1 Ground Chassis signal " The system board suppor ts the chassis intr usion detection func- tion. T o use this function, connect the chassis intr usion sensor cable from the chassis to J6. Whenever a chassis component has been remov ed, the sensor sends signal to J6 aler ting yo[...]

55 2 Hardware Installation 2 1 ON 2.6.11 LEDs DIMM Standby Power LED This LED will tur n red when the system’ s pow er is on or when it is in the Suspend state (P ow er On Suspend or Suspend to RAM). It will not light when the system is in the Soft-Off state. PCI Standby Power LED This LED will tur n red when the system is in the po wer -on, Soft[...]

56 2 Hardware Installation Ear ly progr am chipset reg- ister before POST . T esting memor y presence . Detecting memor y siz e . No memor y present. Programming DRAM tim- ing register . Calculating DRAM size var iab le including row , col- umn and bank. Initializing JEDEC of cur - rent DRAM ro w . Checking CMOS checksum and batter y . Initializing[...]

57 2 Hardware Installation 2 1 ON 2.6.12 Power Connectors W e recommend that y ou use a pow er supply that complies with the A TX12V P ower Suppl y Design Guide V er sion 1.1. An A TX12V po wer supply has a standard 20-pin A TX main power connector and a 4-pin +12V pow er connector that m ust be inser ted onto CN9 and CN8 connector s respectively .[...]

58 2 Hardware Installation 2 1 ON 2.6.13 Front Panel Connectors HD-LED: Primary/Secondary IDE LED This LED will light when the hard drive is being accessed. RESET: Reset Switch This switch allows you to reboot without having to power off the system thus prolonging the life of the power supply or system. SPEAKER: Speaker Connector This connects to t[...]

59 2 Hardware Installation PWR-LED: Power/Standby LED When the system’ s power is on, this LED will light. When the system is in the S1 (POS - P ow er On Suspend) state , it will blink ever y second. When the system is in the S3 (STR - Suspend T o RAM) state , it will blink ever y second. Note: If a system did not boot-up and the P ower/Standby L[...]

60 3 BIOS Setup 3.1 A war d BIOS Setup Utility The Basic Input/Output System (BIOS) is a program that takes care of the basic level of communication between the processor and peripherals. In addition, the BIOS also contains codes for various advanced features f ound in this system board. This chapter explains the Setup Utility for the Award BIOS. A[...]

61 3 BIOS Setup The settings on the screen are for reference onl y . Y our ver sion may not be identical to this one. 3.1.1.1 Date The date format is <day>, <month>, <date>, <year>. Day displays a day , from Sunday to Saturda y . Month displays the month, from Januar y to December . Date displays the date, from 1 to 31. Y ea[...]

62 3 BIOS Setup The settings on the screen are for reference onl y . Y our ver sion may not be identical to this one. IDE HDD Auto Detection Detects the par ameter s of the dr ive. The par ameter s will automati- cally be shown on the screen. IDE Channel 0 Master/Slave and IDE Channel 1 Master/Slave The drive type information should be included in [...]

63 3 BIOS Setup Capacity Displays the approximate capacity of the disk drive. Usually the size is slightly greater than the size of a formatted disk given by a disk checking program. Cylinder This field displa ys the n umber of cylinder s. Head This field displays the number of read/write heads. Precomp This f ield displays the n umber of cylinder [...]

64 3 BIOS Setup 3.1.1.5 Video This field selects the type of video adapter used f or the pr imar y system monitor . Although secondar y monitor s are suppor ted, you do not hav e to select the type . The default setting is EGA/V GA. EGA/VGA Enhanced Gr aphics Adapter/Video Gr aphics Ar ray . For EGA, V GA, SV GA and PGA monitor adapter s. CGA 40 Co[...]

65 3 BIOS Setup 3.1.1.8 Extended Memory Displays the amount of extended memor y detected dur ing boot-up . 3.1.1.9 T otal Memory Displays the total memor y availab le in the system.[...]

66 3 BIOS Setup 3.1.2 Advanced BIOS F eatures The Advanced BIOS Features allows y ou to conf igure y our system for basic operation. Some entries are defaults required by the system board, while other s, if enab led, will impro v e the perfor mance of y our system or let you set some features according to your preference. The screen abo ve list all[...]

67 3 BIOS Setup 3.1.2.4 CPU L3 Cache This f ield is used to enable or disab le the CPU’ s L3 cache . 3.1.2.5 Hyper -Threading T echnolog y (for Intel ® P entium ® 4 Pr ocessor with Hyper -Threading T echnology only) This f ield is used to enable the functionality of the Intel ® P entium ® 4 Processor with Hyper -Threading T echnology and will[...]

68 3 BIOS Setup 3.1.2.10 Gate A20 Option This entr y allows y ou to select how gate A20 is handled. Gate A20 is a device used to address memor y above 1 Mbyte. Initially , gate A20 was handled via the keyboard controller . T oday , while keyboards still provide this suppor t, it is more common, and much faster , for the system chipset to provide su[...]

69 3 BIOS Setup 3.1.2.14 Security Option This field determines when the system will prompt for the password - ever ytime the system boots or only when you enter the BIOS setup. Set the password in the Set Super visor/User Passw ord submenu. System The system will not boot and access to Setup will be denied unless the correct password is entered at [...]

70 3 BIOS Setup 3.1.3 Advanced Chipset F eatur es This section gives you functions to configure the system based on the specif ic features of the chipset. The chipset manages bus speeds and access to system memor y resources. These items should not be alter ed unless necessar y . The default settings hav e been chosen because they provide the best [...]

71 3 BIOS Setup Manual If y ou want y our system to r un at a perfor mance better than the one “by SPD”, select “Manual” then select the best option in the “C AS Latency Time” to “DRAM RAS# Precharge” fields. 3.1.3.2 C AS Latency Time This field is used to select the local memor y clock per iods. 3.1.3.3 Active to Pr echarge Dela y [...]

72 3 BIOS Setup 3.1.3.8 System BIOS Cacheable When this field is enabled, accesses to the system BIOS ROM addressed at F0000H-FFFFFH are cached, provided that the cache controller is enabled. The lar ger the range of the Cache RAM, the higher the efficiency of the system. 3.1.3.9 Video BIOS Cacheable As with caching the system BIOS, enabling the Vi[...]

73 3 BIOS Setup 3.1.3.13 DRAM Data Integrity Mode The ECC (Er ror Checking and Correction) function is suppor ted only in x72 (72-bit) PC SDRAM DIMMs. If you are using x64 (64-bit) PC SDRAM DIMMs, set this field to Non-ECC . Non-ECC Uses x64 PC SDRAM DIMM. ECC This option allows the system to reco v er from memor y failure . It detects single-bit a[...]

74 3 BIOS Setup 3.1.4 Integrated Peripherals The settings on the screen are for ref erence only . Y our ver sion ma y not be identical to this one. 3.1.4.1 OnChip IDE Device Mov e the cur sor to this f ield and press <Enter>. The following screen will appear . The settings on the screen are for ref erence only . Y our v er sion may not be ide[...]

75 3 BIOS Setup IDE HDD Block Mode Enabled The IDE HDD uses the block mode. The system BIOS will check the hard disk drive for the maximum block size the system can tr ansf er . The block siz e will depend on the type of hard disk drive. Disabled The IDE HDD uses the standard mode. IDE DMA T ransfer Access This field, when Enabled, will enhance the[...]

76 3 BIOS Setup IDE Primary Master/Slave UDMA and IDE Secondary Master/ Slave UDMA These fields allo w y ou to set the Ultra DMA in use . When Auto is selected, the BIOS will select the best available option after checking your hard drive or CD-ROM. Auto The BIOS will automatically detect the settings for you. Disabled The BIOS will not detect thes[...]

77 3 BIOS Setup 3.1.4.2 Onboard Device Mov e the cur sor to this f ield and press <Enter>. The follo wing screen will appear . The settings on the screen are for ref erence only . Y our version may not be identical to this one. USB Controller Enabled Enables the onboard USB. Disabled Disables the onboard USB. USB 2.0 Controller If you are usi[...]

78 3 BIOS Setup 3.1.4.3 Super IO Device Mov e the cur sor to this f ield and press <Enter>. The following screen will appear . The settings on the screen are for reference onl y . Y our v er sion ma y not be identical to this one. Power On Function This f ield allows y ou to use the keyboard or PS/2 mouse to pow er - on the system. Button onl[...]

79 3 BIOS Setup Keyboard 98 When this option is selected, press the “wake up” key of the Windo ws  98 compatible k eyboard to power -on the system. KB Power On Password Mov e the cur sor to this field and press <Enter>. Enter your pass- word. Y ou can enter up to 5 char acter s. T ype in exactl y the same password to confirm, then pres[...]

80 3 BIOS Setup RxD , TxD Active The options are Hi, Lo; Lo, Hi; Lo, Lo; and Hi, Hi. IR T ransmission Dela y If this f ield is Enabled, tr ansmission of data will be slow er . This is recommended when you encounter transmission problem with your device . The options are: Enabled and Disab led. UR2 Duplex Mode Half Data is completely transmitted bef[...]

81 3 BIOS Setup If you selected EPP , the “EPP Mode Select” field is selectab le . If you selected ECP , the “ECP Mode Use DMA” field is selectab le . If you selected ECP+EPP , both “EPP Mode Select” and “ECP Mode Use DMA” are selectable. EPP Mode Select This f ield is used to select the EPP mode of the parallel por t. ECP Mode Use [...]

82 3 BIOS Setup Onboard Serial Port 3 (G4H875-N only) This field is used to select the serial por t 3’ s I/O address. Onboard Serial Port 3 IRQ (G4H875-N only) This field is used to select the serial por t 3’ s IRQ address. This field is not configurable if the “Onboard Ser ial P or t 3” f ield is set to Disabled. Onboard Serial Port 4 (G4H[...]

83 3 BIOS Setup 3.1.5 Power Management Setup The P ow er Management Setup allows y ou to configure y our system to most effectiv ely sa v e ener gy . 3.1.5.1 A CPI Function This function should be enabled only in operating systems that sup- por t A CPI. Cur rently , only Windows ® ® ® ® ® 98SE/2000/ME/XP suppor ts this function. If you want to[...]

84 3 BIOS Setup 3.1.5.3 Run V GABIOS if S3 Resume When this field is set to Auto, the system will initialize the V GA BIOS when it wakes up from the S3 state . This can be conf igured only if the “A CPI Suspend T ype” f ield is set to “S3(STR)”. 3.1.5.4 Power Management This field allows you to select the type (or degree) of power saving by[...]

85 3 BIOS Setup 3.1.5.8 MODEM Use IRQ This field is used to set an IRQ channel for the modem installed in your system. 3.1.5.9 Suspend Mode This is selectable onl y when the P o w er Management field is set to User Define. When the system enter s the Suspend mode according to the power saving time selected, the CPU and onboard peripherals will be s[...]

86 3 BIOS Setup 3.1.5.12 W ak e-Up b y PCI Car d Enabled This field should be set to Enabled only if your PCI card such as LAN card or modem card uses the PCI PME (P ow er Management Ev ent) signal to remotely wake up the system. Access to the LAN card or PCI card will cause the system to wake up. Refer to the card’ s documentation for more infor[...]

87 3 BIOS Setup 3.1.5.17 Resume By Alarm Enabled When Enabled, you can set the date and time you would lik e the Soft P ower Down (Soft-Off) PC to po wer -on in the “Date (of Month) Alar m” and “Time (hh:mm:ss) Alarm” fields. Howev er , if the system is being accessed b y incoming calls or the networ k (Resume On Ring/LAN) prior to the date[...]

88 3 BIOS Setup 3.1.6 PnP/PCI Configurations This section descr ibes conf igur ing the PCI b us system. It co v er s some ver y technical items and it is strongly recommended that onl y exper ienced user s should mak e any changes to the default settings. The settings on the screen are for ref erence only . Y our version may not be identical to thi[...]

89 3 BIOS Setup 3.1.6.3 IRQ Resources Mo v e the cur sor to this field and press <Enter>. The “IRQ-3” to “IRQ-15” f ields will appear . Set each system inter r upt to either PCI Device or Reser ved. 3.1.6.4 PCI/V GA Palette Snoop This f ield deter mines whether the MPEG ISA/VESA V GA cards can wor k with PCI/V GA or not. The default v[...]

90 3 BIOS Setup 3.1.7 PC Health Status 3.1.7.1 Shutdown T emperatur e Y ou can prevent the system from o v erheating by selecting a tem- perature in this field. If the system detected that its temperature exceeded the one set in this field, it will automatically shutdown. 3.1.7.2 C urr ent System T emperature, Curr ent CPU T emperature, Chassis Fan[...]

91 3 BIOS Setup 3.1.7.4 VCC3(V), +12(V), -12(V), VCC(V), VB A T(V) and 5VSB(V) These fields sho w the output v oltage of the pow er suppl y . Note: The onboard hardware monitor function is capable of detecting “system health” conditions but if you want a warning message to pop-up or a warning alarm to sound when an abnormal condition occur s , [...]

92 3 BIOS Setup 3.1.8 Frequency/V oltage Contr ol The settings on the screen are for reference onl y . Y our ver sion may not be identical to this one. 3.1.8.1 CPU Clock Ratio This field is used to select the CPU’ s frequency r atio . Important: The frequency ratio of some processors may have been locked by the manuf acturer . If you are using th[...]

93 3 BIOS Setup 3.1.8.5 CPU Clock This field provides several options for selecting the external system bus clock of the processor . The availab le options allow y ou to adjust the processor’ s bus clock by 1MHz increment. Important: Selecting an external bus clock other than the default setting may result to the processor’s or system’s insta[...]

94 3 BIOS Setup 3.1.9 Load Fail-Safe Defaults The “Load Fail-Saf e Defaults” option loads the troub leshooting default values per manentl y stored in the ROM chips. These settings are not optimal and tur n off all high performance features. Y ou should use these values only if you have hardware problems. Highlight this option in the main menu a[...]

95 3 BIOS Setup 3.1.10 Load Optimized Defaults The “Load Optimized Defaults” option loads optimiz ed se ttings from the BIOS ROM. Use the default values as standard values for your system. Highlight this option in the main menu and press <Enter>. T ype <Y> and press <Enter> to load the Setup default values.[...]

96 3 BIOS Setup 3.1.11 Set Supervisor Password If you want to protect your system and setup from unauthorized entr y , set a super visor’ s passw ord with the “System” option selected in the Advanced BIOS Features. If you want to protect access to setup only , but not y our system, set a super visor’ s passw ord with the “Setup” option [...]

97 3 BIOS Setup 3.1.12 Set User Password If you want another user to ha ve access only to your system but not to setup , set a user’ s password with the “System” option se- lected in the Advanced BIOS Features. If you want a user to enter a password when tr ying to access setup, set a user’ s password with the “Setup” option selected in[...]

98 3 BIOS Setup 3.1.13 Sa v e & Exit Setup When all the changes hav e been made , highlight “Sav e & Exit Setup” and press <Enter>. T ype “Y” and press <Enter>. The modif ications y ou hav e made will be wr itten into the CMOS memor y , and the system will reboot. Y ou will once again see the initial diagnostics on the s[...]

99 3 BIOS Setup 3.1.14 Exit Without Sa ving When you do not want to save the changes you have made, highlight “Exit Without Saving” and press <Enter>. T ype “Y” and press <Enter>. The system will reboot and you will once again see the initial diagnostics on the screen. If you wish to make an y changes to the setup, press <Ctr[...]

100 3 BIOS Setup 3.2 Updating the BIOS T o update the BIOS, y ou will need the new BIOS f ile and a flash utility , A WDFLASH.EXE. Please contact technical suppor t or y our sales representative for the files. Note: A WDFLASH.EXE wor ks only in DOS mode. 1 . Save the new BIOS file along with the flash utility A WDFLASH.EXE to a floppy disk. 2 . Reb[...]

101 3 BIOS Setup 6 . The following will appear . Do Y ou W ant to Sa ve BIOS (Y/N) This question refer s to the cur rent existing BIOS in y our system. W e recommend that you sa ve the current BIOS and its flash utility; just in case y ou need to reinstall the BIOS. T o sa v e the current BIOS, press <Y> then enter the file name of the curren[...]

102 4 Supported Software 4.1 Desktop Management Interface (DMI) The system board comes with a DMI built into the BIOS. DMI, along with the appropr iately netw or ked software , is designed to make in ventor y , maintenance and troubleshooting of computer sys- tems easier . With DMI, a networ k administrator or MIS engineer can remotely access some [...]

103 4 Supported Software 4.1.2 Using the DMI Utility The four menus located on top of the DMI Configuration Utility screen are Edit DMI, Add DMI, Load DMI File and Sa ve DMI File . Use the ← or → (left or right) arrow keys to select a menu from the Menu bar . On the left side of the screen is a list of the system configuration items. Use the ?[...]

104 4 Supported Software Add DMI 1. Use the ← or → ar ro w keys to select the Add DMI menu. 2. Highlight the item on the left screen that you would like to add by using the ↑ or ↓ arrow keys, then press <Enter>. 3. The cur sor will mov e to the screen y ou select allo wing y ou to enter information about the added item. 4. Press <F[...]

105 4 Supported Software 4.2 Driv ers, Utilities and Softwar e Applications The CD that came with the system board contains dr iver s, utilities and software applications required to enhance the performance of the system board. Inser t the CD into a CD-ROM drive . The autor un screen (Main Board Utility CD) will appear . If after inser ting the CD [...]

106 4 Supported Software 4.2.1 Intel 875 INF Update Utility The Intel 875 INF Update Utility is used for updating Windows  98SE/2000/ME/XP's INF files so that the Intel chipset can be recognized and conf igured proper ly in the system. T o install the utility , please follo w the steps belo w . 1 . Click “Intel 875 INF Update Utility” o[...]

107 4 Supported Software 4.2.2 Intel LAN Drivers T o install the dr iv er , please follo w the steps below . 1 . Click “Intel LAN Dr iver s” on the main menu. 2 . Click “Wired LAN Adapter s”. The following screen will appear . 3 . Click “Install Software”. This will install the LAN application software . After installing the software , [...]

108 4 Supported Software 4.2.3 Intel USB 2.0 Drivers If you are using a USB 2.0 device, you must install the USB 2.0 dr iv er . The dr iver s are suppor ted in the f ollowing operating systems: Windo ws  98 SE, Windows  ME and Windows  2000. T o install the driver , please follo w the steps below . 1 . Click “Intel USB 2.0 Dr iver s” o[...]

109 4 Supported Software Important: If you are using W indows ® ® ® ® ® XP , you must install the Windows Ser vice P ack 1 USB 2.0 dr iver which comes availab le after you have installed the operating system. 2 . Follow the installation instr uctions shown on the screen. 3 . Reboot the system for the driver to take effect. Windows  2000 doe[...]

110 4 Supported Software 4.2.4 A u d i o D r i v e r s The audio dr iver s are suppor ted in the follo wing oper ating sys- tems: Windo ws  98SE, Windows  ME, Windo ws NT  4.0, Windows  2000 and Windows  XP . T o install the dr iv er , please follo w the steps below . 1 . Click “Audio Dr iver s”. The following screen will appear [...]

111 4 Supported Software 4.2.5 Microsoft DirectX 9 T o install, please follo w the steps belo w . 1 . Click “Microsoft DirectX 9” on the main menu . The follo wing screen will appear . 2 . Click “I accept the agreement” then click “Next”. 3 . Follow the prompts on the screen to complete installation. 4 . Reboot the system for the driver[...]

112 4 Supported Software 4.2.6 Hardware Doctor Hardware Doctor is capable of monitoring the system’ s hardware conditions such as the temperature of the CPU and system, volt- age, and speed of the cooling fans. It also allows you to manually set a range to the items being monitored. If the values are over or under the set r ange, a war ning messa[...]

113 4 Supported Software 4.3 Installation Notes 1. "Autor un" ONL Y suppor ts the Windows  98 SE, Windo ws  ME, Windows  2000, Windows NT  4.0 and Windows  XP oper ating systems. If after inser ting the CD , "Autor un" did not automatically star t (which is, the Main Board Utility CD screen did not appear), please[...]

A 114 Enabling Hyper -Threading T echnolog y A . 1 Enabling Hyper -Thr eading T echnolog y T o enable the functionality of the Hyper -Threading T echnology , please follo w the requirements and steps below . Basicall y , the follo wing presumes that you ha ve already installed an Intel ® P entium ® 4 Processor with Hyper -Threading T echnology . [...]

A Enabling Hyper -Threading T echnolog y 115 d. Now click the Hardware tab then click Device Manager . The items shown under Computer and Processor s should resemble the ones sho wn belo w . c. Click the Gener al tab . The processor sho wn under Computer should resemble the one shown belo w .[...]

A 116 Enabling Hyper -Threading T echnolog y e. Lastly , press the <Ctr l> <Alt> and <Del> keys simultaneousl y . The Windo ws T ask Manager dialog box will appear . Click the P erfor mance tab . The diagr am under CPU Usage Histor y should resemb le the one sho wn below .[...]

B CPU Fan Protection 117 The CPU must be kept cool by using a CPU fan with heat sink. Without sufficient air circulation across the CPU and heat sink, the CPU will overheat damaging both the CPU and system board. The system board suppor ts the CPU Fan Protection function. It has the capability of monitoring the CPU fan when the system boots. Once i[...]

C 118 CPU T emperature Protection The CPU T emper ature Protection function has the capability of monitor ing the CPU’ s temper ature dur ing system boot-up . T o use the CPU T emper ature Protection function, please follo w the steps below . 1 . Select the “PC Health Status” submenu in the BIOS. 2 . Set the “CPU T emp. Prot. Function” fi[...]

D System Error Message 119 When the BIOS encounter s an er ror that requires the user to correct something, either a beep code will sound or a message will be displayed in a box in the middle of the screen and the message, PRESS F1 T O CONTINUE, CTRL-AL T -ESC or DEL T O ENTER SETUP , will be shown in the information box at the bottom. Enter Setup [...]

D 120 System Error Message setting than indicated in Setup. Determine which setting is correct, either turn off the system and change the jumper or enter Setup and change the VIDEO selection. FLOPPY DISK(S) fail (80) Unable to reset floppy subsystem. FLOPPY DISK(S) fail (40) Floppy type mismatch. Hard Disk(s) fail (80) HDD reset failed. Hard Disk(s[...]

E T r oubleshooting 121 E.1 T r oubleshooting Checklist This chapter of the manual is designed to help you with problems that y ou may encounter with y our per sonal computer . T o efficientl y troubleshoot y our system, treat each prob lem individually . This is to ensure an accurate diagnosis of the problem in case a problem has multiple causes. [...]

E 122 T r oubleshooting The picture seems to be constantly moving. 1. The monitor has lost its ver tical sync . Adjust the monitor’s v er tical sync. 2. Move away any objects, such as another monitor or fan, that may be creating a magnetic f ield around the displa y . 3. Make sure y our video card’ s output frequencies are suppor ted by this mo[...]

E T r oubleshooting 123 Hard Drive Hard disk failure. 1. Make sure the correct drive type for the hard disk drive has been entered in the BIOS. 2. If the system is configured with two hard drives, make sure the bootable (f i r st) hard dr ive is conf igured as Master and the second hard dr iv e is conf igured as Sla v e. The master hard dr ive must[...]

E 124 T r oubleshooting Serial Port The serial device (modem, printer) doesn’ t output anything or is outputting garbled characters. 1 . Make sure that the ser ial device’ s pow er is turned on and that the device is on-line. 2 . V er ify that the device is plugged into the cor rect ser ial por t on the rear of the computer . 3. V er ify that t[...]