Asus B75MA manual

Motherboard B75M-A[...]

ii E81 16 First Edition V1 January 2013 Copyright © 2013 ASUST eK COMPUTER INC. All Rights Reserved. No part of this manual, including the products and software described in it, may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language in any form or by any means, except documentation kept by the pu[...]

iii Contents Safety information ...................................................................................... vi About this guide ......................................................................................... vi B75M-A specications summary ............................................................ viii Package contents ....[...]

iv Contents 1.9 Onboard LEDs ............................................................................ 1-32 1.10 Software support ........................................................................ 1-32 1.10.1 Installing an operating system ...................................... 1-32 1.10.2 Support DVD information ..........................[...]

v Contents 2.5.9 Network Stack ............................................................... 2-25 2.6 Monitor menu ............................................................................. 2-26 2.6.1 CPU T emperature / MB T emperature [xxxºC/xxxºF] ...... 2-26 2.6.2 CPU / Chassis Fan Speed [xxxx RPM] or [Ignore] / [N/A] ....................[...]

vi Safety information Electrical safety T o prevent electrical shock hazard, disconnect the power cable from the electrical outlet before relocating the system. When adding or removing devices to or from the system, ensure that the power cables for the devices are unplugged before the signal cables are connected. If possible, disconnect all power c[...]

vii Where to nd more information Refer to the following sources for additional information and for product and software updates. 1. ASUS websites The ASUS website provides updated information on ASUS hardware and software products. Refer to the ASUS contact information. 2. Optional documentation Y our product package may include optional documen[...]

viii B75M-A specications summary (continued on the next page) CPU LGA1 155 socket for Intel ® 3rd / 2nd Generation Core™ i7 / i5 / i3, Pentium ® and Celeron ® processors Supports Intel ® 22/32nm CPU Supports Intel ® T urbo Boost T echnology 2.0 * The Intel ® T urbo Boost T echnology 2.0 support depends on the CPU types. ** Refer to www.a[...]

ix B75M-A specications summary ASUS unique features ASUS Exclusive Features: - ASUS USB 3.0 Boost - ASUS Network iControl - ASUS AI Suite II - ASUS AI Charger - ASUS Anti-Surge Protection - ASUS UEFI BIOS ASUS Quiet Thermal Solution: - ASUS Fan Xpert ASUS EZ DIY : - ASUS CrashFree BIOS 3 - ASUS EZ Flash 2 - ASUS MyLogo 2™ Other features - 100%[...]

x B75M-A specications summary BIOS features 128 Mb Flash ROM, AMI BIOS, PnP , DMI2.0, WfM2.0, SM BIOS 2.5, ACPI 2.0a, Multi-language BIOS, ASUS EZ Flash 2, ASUS CrashFree BIOS 3 Manageability WfM 2.0, DMI 2.0, WOL by PME, WOR by PME, PXE Support DVD Drivers ASUS utilities ASUS Update Anti-virus software (OEM version) Form factor MicroA TX form f[...]

xi Package contents Check your motherboard package for the following items. B75M-A PCIEX16 PCIEX1_1 PCIEX1_2 PCI1 F_PANEL SPEAKER CLRTC USBPW5-8 USBPW12 PS2_USBPW34 USB56 USB78 AAFP ATX12V EATXPWR CPU_FAN CHA_FAN BATTERY Super I/O ALC 887 RTL 8111F 128Mb BIOS SB_PWR Intel ® B75 DDR3 DIMM_A1 (64bit, 240-pin module) LGA1155 DDR3 DIMM_B1 (64bit, 240-[...]

xii[...]

ASUS B75M-A 1-1 Product introduction 1 1.1 Special features 1.1.1 Product highlights LGA1 155 socket for Intel® 3rd/2nd Generation Core™ i7 / Core™ i5 / Core™ i3 processors This motherboard supports the Intel ® 3rd/2nd generation Core™ i7 / Core™ i5 / Core™ i3 processors in the LGA1 155 package It provides great graphics performance w[...]

1-2 Chapter 1: Product introduction Complete USB 3.0 Integration This motherboard offers you the strategic USB 3.0 accessibility for both the front and rear panels, allowing you to experience the convenience of the latest plug and play connectivity solution at speed up to ten times faster than USB 2.0. PCI Express ® 3.0 PCI Express ® 3.0 (PCIe 3.[...]

ASUS B75M-A 1-3 ASUS MyLogo 2™ This feature allows you to convert your favorite photo into a 256-color boot logo for a more colorful and vivid image on your screen. ASUS CrashFree BIOS 3 ASUS CrashFree BIOS 3 is an auto-recovery tool that allows you to restore a corrupted BIOS le using the bundled support DVD or USB ash disk that contains t[...]

1-4 Chapter 1: Product introduction 1.2 Before you proceed T ake note of the following precautions before you install motherboard components or change any motherboard settings. • Unplug the power cord from the wall socket before touching any component. • Before handling components, use a grounded wrist strap or touch a safely grounded object or[...]

ASUS B75M-A 1-5 1.3.2 Screw holes Place six screws into the holes indicated by circles to secure the motherboard to the chassis. Do not overtighten the screws! Doing so can damage the motherboard. B75M-A Place this side towards the rear of the chassis[...]

1-6 Chapter 1: Product introduction 1.3.3 Motherboard layout B75M-A PCIEX16 PCIEX1_1 PCIEX1_2 PCI1 F_PANEL SPEAKER CLRTC USBPW5-8 USBPW12 PS2_USBPW34 USB56 USB78 AAFP ATX12V EATXPWR CPU_FAN CHA_FAN BATTERY Super I/O ALC 887 RTL 8111F 128Mb BIOS SB_PWR 24.4cm(9.6in) Intel ® B75 DDR3 DIMM_A1 (64bit, 240-pin module) LGA1155 DDR3 DIMM_B1 (64bit, 240-p[...]

ASUS B75M-A 1-7 1.3.4 Layout contents Connectors/Jumpers/Slots/LED Page 1. USB device wake-up (USBPW12) 1-22 2. A TX power connectors (24-pin EA TXPWR, 4-pin A TX12V) 1-26 3. P/S 2 device wakeup (PS_USBPW34) 1-21 4. CPU and chassis fan connectors (4-pin CPU_F AN, 4-pin CHA_F AN) 1-27 5. Intel ® LGA1 155 CPU socket 1-8 6. DDR3 DIMM slots 1-13 7. In[...]

1-8 Chapter 1: Product introduction Unplug all power cables before installing the CPU. • Upon purchase of the motherboard, ensure that the PnP cap is on the socket and the socket contacts are not bent. Contact your retailer immediately if the PnP cap is missing, or if you see any damage to the PnP cap/socket contacts/motherboard components. ASUS [...]

ASUS B75M-A 1-9 1.4.1 Installing the CPU The LGA1 156 CPU is incompatible with the LGA1 155 socket. DO NOT install a LGA1 156 CPU on the LGA1 155 socket. 1 2 3 A B[...]

1-10 Chapter 1: Product introduction A B C 5 4[...]

ASUS B75M-A 1-1 1 1.4.2 CPU heatsink and fan assembly installation Apply the Thermal Interface Material to the CPU heatsink and CPU before you install the heatsink and fan if necessary . T o install the CPU heatsink and fan assembly 2 B A A B 3 1 4[...]

1-12 Chapter 1: Product introduction A B B A T o uninstall the CPU heatsink and fan assembly 2 1[...]

ASUS B75M-A 1-13 1.5 System memory 1.5.1 Overview This motherboard comes with two Double Data Rate 3 (DDR3) Dual Inline Memory Module (DIMM) sockets. A DDR3 module has the same physical dimensions as a DDR2 DIMM but is notched differently to prevent installation on a DDR2 DIMM socket. DDR3 modules are developed for better performance with less powe[...]

1-14 Chapter 1: Product introduction 1.5.2 Memory congurations Y ou may install 1GB, 2GB, 4GB, and 8GB unbuffered non-ECC DDR3 DIMMs into the DIMM sockets. • Y ou may install varying memory sizes in Channel A and Channel B. The system maps the total size of the lower-sized channel for the dual-channel conguration. Any excess memory from the[...]

ASUS B75M-A 1-15 B75M-A Motherboard Qualied V endors Lists (QVL) • SS : Single-sided / DS : Double-sided • DIMM support: • 1 DIMM : Supports one module inserted into either slot as single-channel memory conguration. • 2 DIMMs : Supports one pair of modules inserted into both the blue slots as one pair of dual-channel memory congura[...]

1-16 Chapter 1: Product introduction V endors Part No. Size SS/DS Chip Brand Chip No. Timing Voltage DIMM socket support (optional) 1DIMM 2DIMMs CRUCIAL BLT4G3D1869DT1TX0.13FKD(XMP) 4GB DS - - 9-9-9-27 1.5V • • KINGSTON KHX1866C9D3K4/16GX(XMP) 16GB (4GB x4) DS - - - 1.65V • • DDR3-1866 MHz capability DDR3-1600 MHz capability V endors Part N[...]

ASUS B75M-A 1-17 DDR3-1333 MHz capability V endors Part No. Size SS/ DS Chip Brand Chip No. Timing Voltage DIMM socket support (Optional) 1 DIMM 2 DIMM A-DA TA AD3U1333 C2G9 2GB SS A-DA TA 3CCD-1509HN A1 126L - - • • Apacer AU02GFA33 C9NBGC 2GB DS Apacer AM5D5808 APQSBG - - • • CORSAIR CMD8GX3 M4A1333C7 8GB (4 x 2GB) DS - - 7-7-7-20 1.60V ?[...]

1-18 Chapter 1: Product introduction 1.5.3 Installing a DIMM Unplug the power supply before adding or removing DIMMs or other system components. Failure to do so can cause severe damage to both the motherboard and the components. 1. Press the retaining clips outward to unlock a DIMM socket. 2. Align a DIMM on the socket such that the notch on the D[...]

ASUS B75M-A 1-19 1.6 Expansion slots In the future, you may need to install expansion cards. The following sub-sections describe the slots and the expansion cards that they support. Unplug the power cord before adding or removing expansion cards. Failure to do so may cause you physical injury and damage motherboard components. 1.6.1 Installing an e[...]

1-20 Chapter 1: Product introduction 1.7 Jumpers 1. Clear RTC RAM (3-pin CLRTC) This jumper allows you to clear the Real T ime Clock (RTC) RAM in CMOS. Y ou can clear the CMOS memory of date, time, and system setup parameters by erasing the CMOS RTC RAM data. The onboard button cell battery powers the RAM data in CMOS, which include system setup in[...]

ASUS B75M-A 1-21 Except when clearing the RTC RAM, never remove the cap on CLRTC jumper default position. Removing the cap will cause system boot failure! • If the steps above do not help, remove the onboard battery and move the jumper again to clear the CMOS RTC RAM data. After clearing the CMOS, reinstall the battery . • Y ou do not need to c[...]

1-22 Chapter 1: Product introduction 3. USB device wake-up (USBPW12, USBPW5-8) Set this jumper to +5V to wake up the computer from S1 sleep mode (CPU stopped, DRAM refreshed, system running in low power mode) using the connected USB devices. Set to +5VSB to wake up from S3 and S4 sleep modes (no power to CPU, DRAM in slow refresh, power supply in r[...]

ASUS B75M-A 1-23 1.8 Connectors 1.8.1 Rear panel connectors LAN port Speed LED Activity Link LED Activity/Link LED Speed LED Status Description Status Description OFF No link OFF 10Mbps connection ORANGE Linked O RAN GE 100Mbps connection BLINKING Data activity GREEN 1Gbps connection 4 5 3 6 8 11 7 1 12 2 10 9 1. PS/2 mouse port. This port is for a[...]

1-24 Chapter 1: Product introduction 7. USB 2.0 ports 1 and 2. These two 4-pin Universal Serial Bus (USB) ports are for USB 2.0/1.1 devices. 8. USB 3.0 ports 1 and 2 . These two 9-pin Universal Serial Bus (USB) ports are for USB 3.0 devices. • DO NOT connect a keyboard / mouse to any USB 3.0 port when installing Windows ® operating system. • D[...]

ASUS B75M-A 1-25 1.8.2 Internal connectors 1. Front panel audio connector (10-1 pin AAFP) This connector is for a chassis-mounted front panel audio I/O module that supports either HD Audio or legacy AC`97 audio standard. Connect one end of the front panel audio I/O module cable to this connector . • W e recommend that you connect a high-deniti[...]

1-26 Chapter 1: Product introduction • We recommend that you use an A TX 12V Specication 2.0-compliant power supply unit (PSU) with a minimum of 300W power rating. This PSU type has 24-pin and 4-pin power plugs. • DO NOT forget to connect the 4-pin A TX +12V power plug. Otherwise, the system will not boot up. • W e recommend that you use a[...]

ASUS B75M-A 1-27 3. CPU and chassis fan connectors (4-pin CPU_F AN, 4-pin CHA_F AN) Connect the fan cables to the fan connectors on the motherboard, ensuring that the black wire of each cable matches the ground pin of the connector . Do not forget to connect the fan cables to the fan connectors. Insufcient air ow inside the system may damage [...]

1-28 Chapter 1: Product introduction 4. System panel connector (10-1 pin P ANEL) This connector supports several chassis-mounted functions. • System power LED (2-pin PLED) This 2-pin connector is for the system power LED. Connect the chassis power LED cable to this connector . The system power LED lights up when you turn on the system power , and[...]

ASUS B75M-A 1-29 6. Intel ® B75 Serial A T A 3.0Gb/s connectors (7-pin SA T A3G_1~5 [blue]) These connectors connect to Serial A T A 3.0 Gb/s hard disk drives and optical drives via Serial A T A 3.0 Gb/s signal cables. • Y ou must install Windows. XP ® Service Pack 3 or later version before using Serial A T A hard disk drives. • When using ho[...]

1-30 Chapter 1: Product introduction 7. Intel ® B75 Serial A T A 6.0Gb/s connector (7-pin SA T A6G_1 [gray]) This connector connects to Serial A T A 6.0 Gb/s hard disk drives via Serial A T A 6.0 Gb/s signal cables. • Y ou must install Windows. XP Service Pack 3 or later version before using Serial A T A hard disk drives. • When using hot-plug[...]

ASUS B75M-A 1-31 9. USB 2.0 connectors (10-1 pin USB56, USB78) These connectors are for USB 2.0 ports. Connect the USB module cable to any of these connectors, then install the module to a slot opening at the back of the system chassis. These USB connectors comply with USB 2.0 specications and supports up to 480Mbps connection speed. Never conne[...]

1-32 Chapter 1: Product introduction 1.9 Onboard LEDs 1. Standby Power LED The motherboard comes with a standby power LED that lights up to indicate that the system is ON, in sleep mode, or in soft-off mode. This is a reminder that you should shut down the system and unplug the power cable before removing or plugging in any motherboard component. T[...]

ASUS B75M-A 1-33 The following screen is for reference only . T o run the Support DVD Place the Support DVD into the optical drive. If Autorun is enabled in your computer , the DVD automatically displays the Specials screen which lists the unique features of your ASUS motherboard. Click Drivers, Utilities, Make Disk, Manual, and Contact tabs to dis[...]

1-34 Chapter 1: Product introduction 1.10.3 Intel ® SBA support Intel ® SBA (Small Business Advantage) is a combination of hardware and software that provides unique security and productivity capabilities designed for small businesses. Intel ® SBA requires MEI driver (AMT host software kit) installed. Platform requirements: • Windows ® 7 (32/[...]

ASUS B75M-A 2-1 2.1 Managing and updating your BIOS Save a copy of the original motherboard BIOS le to a USB ash disk in case you need to restore the BIOS in the future. Copy the original motherboard BIOS using the ASUS Update utility . 2.1.1 ASUS Update utility The ASUS Update is a utility that allows you to manage, save, and update the moth[...]

2-2 Chapter 2: Getting started Updating from the Internet a. Select Update BIOS from the Internet , then click Next . b. Select the ASUS FTP site nearest you to avoid network trafc, then click Next . c. From the FTP site, select the BIOS version that you wish to download then click Next . The ASUS Update utility is capable of updating itself thr[...]

ASUS B75M-A 2-3 2.1.3 ASUS CrashFree BIOS 3 utility The ASUS CrashFree BIOS 3 is an auto recovery tool that allows you to restore the BIOS le when it fails or gets corrupted during the updating process. Y ou can restore a corrupted BIOS le using the motherboard support DVD or a USB ash drive that contains the updated BIOS le. • Before[...]

2-4 Chapter 2: Getting started 2.1.4 ASUS BIOS Updater The ASUS BIOS Updater allows you to update BIOS in a DOS environment. This utility also allows you to copy the current BIOS le that you can use as a backup when the BIOS fails or gets corrupted during the updating process. The succeeding utility screens are for reference only . The actual ut[...]

ASUS B75M-A 2-5 Updating the BIOS le T o update the BIOS le using BIOS Updater: 1. At the FreeDOS prompt, type bupdater /pc /g and press <Enter>. 2. The BIOS Updater screen appears as below . 3. Press <T ab> to switch between screen elds and use the <Up/Down/Home/End> keys to select the BIOS le and press <Enter>.[...]

2-6 Chapter 2: Getting started 2.2 BIOS setup program Use the BIOS Setup program to update the BIOS or congure its parameters. The BIOS screens include navigation keys and brief online help to guide you in using the BIOS Setup program. Entering BIOS Setup at startup T o enter BIOS Setup at startup: Press <Delete> during the Power-On Self T[...]

ASUS B75M-A 2-7 BIOS menu screen The BIOS setup program can be used under two modes: EZ Mode and Advanced Mode . Y ou can change modes from the Exit menu or from the Exit/Advanced Mode button in the EZ Mode/Advanced Mode screen. EZ Mode By default, the EZ Mode screen appears when you enter the BIOS setup program. The EZ Mode provides you an overvie[...]

2-8 Chapter 2: Getting started Advanced Mode The Advanced Mode provides advanced options for experienced end-users to congure the BIOS settings. The gure below shows an example of the Advanced Mode . Refer to the following sections for the detailed congurations. T o access the EZ Mode, click Exit , then select ASUS EZ Mode . Menu bar The m[...]

ASUS B75M-A 2-9 Menu items The highlighted item on the menu bar displays the specic items for that menu. For example, selecting Main shows the Main menu items. The other items (Ai T weaker , Advanced, Monitor , Boot, T ool, and Exit) on the menu bar have their respective menu items. Back button This button appears when entering a submenu. Press [...]

2-10 Chapter 2: Getting started 2.3 Main menu The Main menu screen appears when you enter the Advanced Mode of the BIOS Setup program. The Main menu provides you an overview of the basic system information, and allows you to set the system date, time, language, and security settings. 2.3.1 System Language [English] Allows you to choose the BIOS lan[...]

ASUS B75M-A 2-1 1 Administrator Password If you have set an administrator password, we recommend that you enter the administrator password for accessing the system. Otherwise, you might be able to see or change only selected elds in the BIOS setup program. T o set an administrator password: 1. Select the Administrator Password item and press <[...]

2-12 Chapter 2: Getting started 2.4 Ai T weaker menu The Ai T weaker menu items allow you to congure overclocking-related items. Be cautious when changing the settings of the Ai T weaker menu items. Incorrect eld values can cause the system to malfunction. The conguration options for this section vary depending on the CPU and DIMM model yo[...]

ASUS B75M-A 2-13 2.4.3 DRAM Timing Control The subitems in this menu allow you to set the DRAM timing control features. Use the <+> and <-> keys to adjust the value. T o restore the default setting, type [auto] using the keyboard and press the <Enter> key . Changing the values in this menu may cause the system to become unstable! [...]

2-14 Chapter 2: Getting started DRAM CKE Minimum pulse width [Auto] Conguration options: [Auto] [1 DRAM Clock] – [15 DRAM Clock] DRAM CAS# Write to Latency [Auto] Conguration options: [Auto] [1 DRAM Clock] – [15 DRAM Clock] DRAM RTL (CHA) [Auto] Conguration options: [Auto] [1 DRAM Clock] – [63 DRAM Clock] DRAM RTL (CHB) [Auto] Con[...]

ASUS B75M-A 2-15 DRAM CLK Period [Auto] Conguration options: [Auto] [2] [3] [4] T ransmitter Slew (CHA) [Auto] Conguration options: [Auto] [1] – [7] T ransmitter Slew (CHB) [Auto] Conguration options: [Auto] [1] – [7] Receiver Slew (CHA) [Auto] Conguration options: [Auto] [1] – [7] Receiver Slew (CHB) [Auto] Conguration options[...]

2-16 Chapter 2: Getting started • Turbo Mode is only available on selected CPU models only . • The following items appear only when you set the T urbo Mode to [Enabled] . T urbo Mode Parameters Long Duration Power Limit [Auto] Allows you to limit the turbo ratio’s long duration power . Use the <+> and <-> keys to adjust the value.[...]

ASUS B75M-A 2-17 CPU Power Phase Control [Standard] Allows you to control the power phase based on the CPU’s demands. Conguration options: [Standard] [Optimized] [Extreme] [Manual Adjustment] DO NOT remove the thermal module when switching to Extreme and Manual Mode. The thermal conditions should be monitored. CPU Power Duty Control [T .Probe][...]

2-18 Chapter 2: Getting started 2.5 Advanced menu The Advanced menu items allow you to change the settings for the CPU and other system devices. Be cautious when changing the settings of the Advanced menu items. Incorrect eld values can cause the system to malfunction. 2.5.1 CPU Conguration The items in this menu show the CPU-related informat[...]

ASUS B75M-A 2-19 Execute Disable Bit [Enabled] [Enabled] Enables the No-Execution Page Protection T echnology . [Disabled] Forces the XD feature ag to always return to zero (0). Intel ® Virtualization T echnology [Disabled] [Enabled] Allows a hardware platform to run multiple operating systems separately and simultaneously , enabling one system[...]

2-20 Chapter 2: Getting started CPU C3 Report [Auto] Allows you to disable or enable the CPU C3 report to OS. Conguration options: [Auto] [Disabled] [Enabled] CPU C6 Report [Auto] Allows you to disable or enable the CPU C6(ACPI C3) report to OS. Conguration options: [Auto] [Disabled] [Enabled] Package C State Support [Auto] Allows you to disa[...]

ASUS B75M-A 2-21 Intel ® Smart Connect T echnology [Disabled] ICST Configuration [Disabled] Allows you to enable or disable the ISCT conguration. Conguration options: [Enabled] [Disabled] 2.5.3 SA T A Conguration While entering Setup, the BIOS automatically detects the presence of SA T A devices. The SA T A Port items show Not Present if [...]

2-22 Chapter 2: Getting started Graphics Conguration Allows you to select a primary display from iGPU, and PCIe graphical devices. Primary Display [Auto] Allows you to select which of the iGPU/PCIE Graphics device should be the Primary Display . Conguration options: [Auto] [iGPU] [PCIE] [PCI] iGPU Memory [Auto] Allows you to select the amount[...]

ASUS B75M-A 2-23 W atchDog [Disabled] When set to [Enabled], the W atchDog T imer will monitor the time taken for each task performed by a software or hardware. Conguration options: [Enabled] [Disabled] The following two items become congurable only when you set the WatchDog Timer item to [Enabled]. OS Timer [0] Use the <+> and <->[...]

2-24 Chapter 2: Getting started EHCI Hand-off [Disabled] [Enabled] Enables the support for operating systems without an EHCI hand-off feature. [Disabled] Disables the function. USB Single Port Control USB3_1~USB3_4 [Enabled] Allows you to enable or disable an individual USB port. Refer to the section 1.3.3 Motherboard layout in this user manual for[...]

ASUS B75M-A 2-25 Power On By PCIE/PCI [Disabled] [Disabled] Disables the PCIE/PCI devices to generate a wake-on-LAN feature of the Intel ® /Realtek LAN device. [Enabled] Enables the PCIE/PCI devices to generate a wake-on-LAN feature of the Intel ® /Realtek LAN device. Power On By RTC [Disabled] [Disabled] Disables RTC to generate a wake event. [E[...]

2-26 Chapter 2: Getting started 2.6 Monitor menu The Monitor menu displays the system temperature/power status, and allows you to change the fan settings. 2.6.1 CPU T emperature / MB T emperature [xxxºC/xxxºF] The onboard hardware monitor automatically detects and displays the CPU and motherboard temperatures. Select Ignore if you do not wish to [...]

ASUS B75M-A 2-27 CPU Fan Prole [Standard] This item appears only when you enable the CPU Q-Fan Control feature and allows you to set the appropriate performance level of the CPU fan. [Standard] Sets to [Standard] to make the CPU fan automatically adjust depending on the CPU temperature. [Silent] Sets to [Silent] to minimize the fan speed for qui[...]

2-28 Chapter 2: Getting started Chassis Fan Prole [Standard] This item appears only when you enable the Chassis Q-Fan Control feature and allows you to set the appropriate performance level of the chassis fan. [Standard] Sets to [Standard] to make the chassis fan automatically adjust depending on the chassis temperature. [Silent] Sets to [Silent[...]

ASUS B75M-A 2-29 2.7 Boot menu The Boot menu items allow you to change the system boot options. 2.7.1 Fast Boot [Enabled] [Enabled] Select to accelerate the boot speed. [Disabled] Select to go back to normal boot. The following four items appear when you set Fast Boot to [Enabled]. USB Support [Partial Initialization] [Disabled] All USB devices wil[...]

2-30 Chapter 2: Getting started PS/2 Keyboard and Mouse Support [Auto] Select any of these settings when PS/2 keyboard and mouse are installed. These settings only apply when Fast Boot is enabled. [Auto] For a faster POST time, PS/2 devices will only be available when the system boots up or rebooted when the PS/2 devices have not been reconnected o[...]

ASUS B75M-A 2-31 2.7.5 Option ROM Messages [Force BIOS] [Force BIOS] The third-party ROM messages will be forced to display during the boot sequence. [Keep Current] The third-party ROM messages will be displayed only if the third-party manufacturer had set the add-on device to do so. 2.7.6 Interrupt 19 Capture [Disabled] [Enabled] Allows the option[...]

2-32 Chapter 2: Getting started Boot from PCIe/PCI Expansion Devices [Legacy OpROM rst] Allows you to select the type of PCIe/PCI expansion devices that you want to launch. Conguration options: [Legacy OpROM rst] [UEFI driver rst] 2.7.10 Security Boot Allows you to congure the Windows ® Secure Boot settings and manage its keys to pr[...]

ASUS B75M-A 2-33 KEK Management The KEK (Key-exchange Key or Key Enrollment Key) manages the Signature database (db) and Revoked Signature database (dbx). Key-exchange Key (KEK) refers to Microsoft ® Secure Boot Key-Enrollment Key (KEK). Load KEK from File Allows you to load the downloaded KEK from a USB storage device. Copy KEK to File Allows you[...]

2-34 Chapter 2: Getting started DBX Management The dbx (Revoked Signature database) lists the forbidden images of db items that are no longer trusted and cannot be loaded. Load DBX from File Allows you to load the downloaded DBX from a USB storage device. Copy DBX to le Allows you to store the DBX to a USB storage device. Delete the DBX Allows y[...]

ASUS B75M-A 2-35 2.8 T ools menu The T ools menu items allow you to congure options for special functions. Select an item then press <Enter> to display the submenu. 2.8.1 ASUS EZ Flash 2 Utility Allows you to run ASUS EZ Flash 2. Press [Enter] to launch the ASUS EZ Flash 2 screen. For more details, see section 2.1.2 ASUS EZ Flash 2 . 2.8.2[...]

2-36 Chapter 2: Getting started 2.9 Exit menu The Exit menu items allow you to load the optimal default values for the BIOS items, and save or discard your changes to the BIOS items. Y ou can access the EZ Mode from the Exit menu. Load Optimized Defaults This option allows you to load the default values for each of the parameters on the Setup menus[...]

B75M-A A-1 Appendices Notices Federal Communications Commission Statement This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: This device may not cause harmful interference. This device must accept any interference received including interference that may cause undesired operation. This equipmen[...]

A-2 Appendices REACH Complying with the REACH (Registration, Evaluation, Authorisation, and Restriction of Chemicals) regulatory framework, we published the chemical substances in our products at ASUS REACH website at http://csr .asus.com/english/REACH.htm. DO NOT throw the motherboard in municipal waste. This product has been designed to enable pr[...]

B75M-A A-3 ASUS contact information ASUST eK COMPUTER INC. Address 15 Li-T e Road, Peitou, T aipei, T aiwan 1 1259 T elephone +886-2-2894-3447 Fax +886-2-2890-7798 E-mail info@asus.com.tw Web site www .asus.com.tw T echnical Support T elephone +86-21-3842991 1 Online support support.asus.com ASUS COMPUTER INTERNA TIONAL (America) Address 800 Corpor[...]

A-4 Appendices DECLARATION OF CONFORMITY Per FCC Part 2 Section 2. 1077(a) Responsible Party Name: Asus Computer International Address: 800 Corporate Way, Fremont , CA 94539. Phone/Fax No: (510)739-3777/(510)608-4555 hereby declares that the product Product Name : Motherboard Model Number : B75M-A Conforms to the following specifications: FC C Pa r[...]