Supermicro SuperChassis 825S2-R700LPV manual

SC825 CHASSIS Series SC825TQ-R700V(B) SC825TQ-R700RC2V(B) (OEM) SC825TQ-R700RCV(B) (OEM) SC825TQ-R700LPV(B) SC825TQ-560LPV(B) SC825S2-R700RC2V(B) (OEM) SC825S2-R700RCV(B) (OEM) SC825S2-R700LPV(B) SC825S2-560LPV(B) SC825TQ-560UV(B) SC825TQ-560UB(B) USER’S MANUAL 1.0a S UPER[...]

SC825 Chassis Manual ii The information in this User ’s Manual has been carefully reviewed a nd is believ ed to be accurate. The vendor assumes no resp onsibility for any inaccuracies that may be c ontained in this document, makes no comm itment to update or to keep cur rent the informati on in this manual, or to notify any person or o rganizatio[...]

iii Preface Preface About Thi s M anual This m anual is written for prof essional sy stem integ rators and PC te chnicians. It provides information f or the ins tallation and use of the SC825 2 U chassis. Installa- tion and maintenance should b e performed by exp erienced tec hnicians only . Supermicro’s SC825 2 U ch assis features a uniq ue a nd[...]

SC825 Chassis Manual iv Manua l O rganiza tion Chapt er 1: Introd uction The first chapter provides a checkli st of the main com ponents inc luded with this chassis and describes the ma in f eatures of the SC 825 chassis. This chapt er a lso includes contact information. Chapt er 2: Syste m Saf ety This chapter lists warnings, precautions, and sys[...]

v Preface Compa tible Backp lanes This section lists compat ible c ables, power supply specificati ons, a nd com patible backplanes. Not all co mpatible backp lanes are lis ted. Refer to our Web site for the latest c ompatible ba ckplane info rmation.[...]

SC825 Chassis Manual vi T able of Contents Chapter 1 I ntroduction 1-1 Overview ................. ............... ................ ............... ............... ............... ............ 1- 1 1-2 Shipping List ........... ............... ............... ................ ............... ............... ............. 1- 1 1-3 Chassis Features ..[...]

vii Preface Chapter 5 C hassis Se tup and Maintena nce 5-1 Overview ................. ............... ................ ............... ............... ............... ............ 5- 1 5-2 Installatio n .. ............... ............... ................ ............... ............... ............... .......... 5-1 5-3 Removing the Chas sis Cover [...]

SC825 Chassis Manual viii Reliable Ground ................. ................ ............... ............... ............... ........... 6-3 6-4 Rack Mou nting Instru ctions ..... ............... ............... ................ ............... ........... 6-4 Identifying the Sect ions of t he Rack R ails ........ ................ ............... .[...]

Chapter 1 Introduction Chapter 1: Introd uction 1-1 SC825 Chassis Model CPU HDD I/O Slots Power Supply SC825TQ-R700LP DP Dual-core Xeon 8x SAS / SA T A w/SES2 7x LP 700W Redun- dant SC825TQ-560LP DP Dual-core Xeon 8x SAS / SA T A w/SES2 7x LP 560W SC825S1-R700LP DP Dual-core Xeon 8x Single-Chan- nel (4 + 4) SCA w/SAF-TE 7x LP 700W Redun- dant SC825[...]

SC825 Chassis Manual 1-2 1-3 Chas sis Fea tures The SC82 5 2U high performance chassis includes the follo wing feature s: CPU The SC825 Chassis sup ports a Dual -core Xeon p rocessor . Please refer to the motherboard speci fications pages on our web site for updates on supported pro- cessors. Hard Dr ives The SC8 25 Chassis features 8 slot s for U[...]

1-3 Chapter 1: Introductio n 1-4 Conta cting S upermi cro Headquart ers Address: Super Micro Computer, Inc. 980 R ock Ave. San J ose, CA 95131 U.S.A. T el: +1 (4 08) 503-8 000 Fax: +1 (4 08) 503-8 008 Email: marketing@supermic ro.com ( General I nformation) support@su permicro.com (T echnical Support) Web Site: www .supermicro.co m Europe Address: [...]

SC825 Chassis Manual 1-4 1-5 Return ing Mer chandi se for Servic e A receipt or copy of your invo ice marked w ith the date of purchas e is require d be- fore any wa rranty service will be rend ered. Y ou can obt ain service by calling your vendor for a Returned Merchan dise Authorization (RMA) number . When ret urning to t he manufa cturer , the R[...]

2-1 Chapter 2: System Safety Chapter 2 System Safety 2-1 Over view This chapter pr ovides a quick setup ch ecklist to get your chas sis u p and runn ing. Following the steps in o rder given should enable you to have your chassis setup and operational withi n a minima l amoun t of time. T his qui ck set up assume s that you are an experience d techn[...]

SC825 Chassis Manual 2-2 2-4 Elect rical Safety Preca utions Basic electr ical safety prec autions should be followed to prot ect yourself from harm and the SC825 from dama ge: Be aware o f the locations o f the power on /off swit ch on the chas sis as well as t he room’s emergency power- off switch, disconne ction sw itch or electr ical outlet. [...]

2-3 Chapter 2: System Safety DVD-ROM Laser: CAUTION - this server may have come equipped with a DVD-ROM drive. T o prevent direct exposure to the l aser beam and hazardous radiation exposur e, do not open the e nclosure or us e the unit in any un con- ventional way . 2-5 Gener al Saf ety Pre cauti ons Keep the area aro und the c hassis clean and fr[...]

SC825 Chassis Manual 2-4 T ouch a gro unded metal object bef ore removing any board from its antistatic bag. Do not let components or PCBs come into contact with your clothing, which may retain a charge e ven if yo u are wea ring a wr ist strap. Handle a board by its edges only; do not touch its components, peripheral chips, memory m odules or cont[...]

3-1 Chapter 3: Chassis Component s Chapter 3 Chassis Components 3-1 Over view This chapt er describes the most common com ponents includ ed with your chassis. Some components listed may not be included or compatible with your particular chassis model. For more informa tion, see the installation instruct ions detailed later in this manual. 3-2 Compo[...]

Chassis Manual 3-2 Power Su pply Each SC825 chassis model inclu des a high- efficiency power supply rated at 700 W atts (redundant) and 560 W (single). In t he unlikel y event your po wer supply fails, replacement is simpl e and can be done without tools. Air Shr oud Air shrouds are shiel ds, usually plastic, that funnel air directly to where it i[...]

4-1 Chapter 4: System Interface Chapter 4 System Interface 4-1 Over view There are several LEDs on the control p anel as well as others on the drive carr iers to keep you constantly infor med of the overal l statu s of the system as well as the activity and health of sp ecific com ponents. M ost SC825 models are two b uttons on the chassis a contr[...]

Chassis Manual 4-2 Power Failur e: When this LED fl ashes, it indicat es a power failur e in the power supply . • Ove rh ea t / Fa n Fa il : Wh en thi s L ED flas hes i t i ndic ate s a f an fai lure. W hen co nti nuous ly o n (not flash ing) i t ind ica tes a n over hea t co ndit io n, wh ich may be ca used by c ab les o bstr uc tin g the a i[...]

4-3 Chapter 4: System Interface Powe r: I ndic ate s po wer is bei ng su ppli ed to th e syste m's po wer su ppl y unit s. Thi s LED sho uld nor mal ly b e ill umin ated whe n th e syst em is ope rat ing. • HD D : I ndic at es I DE c hann el ac ti vit y. SA S / SA T A d ri ve, S CS I d ri ve, a nd / or DVD - R OM d ri ve ac tiv it y wh en ?[...]

Chassis Manual 4-4 4-4 Driv e Carri er LED s Y our chassis u ses SAS/SA T A or SCSI dri ves, but n ot both. SAS/S A T A Driv es Each SAS /SA T A drive carrie r has two LEDs. Green: Eac h S er ial A T A dr ive ca rr ier has a gree n L ED. W hen ill umina ted, thi s gre en LED (o n t he fr ont of t he SA T A dr ive c ar ri er) indi cat es dr ive ac t[...]

5-1 Chapter 5: Chassis Setup and Maintenance Chapter 5 Chassis Setup and Maintenance 5-1 Over view This chapter covers the steps required to install compone nts and perfor m mainte- nance on the chassis. The only tool you will need to install components and perform maintenance is a Ph illips screwd river . Print thi s page to use as a reference whi[...]

SC825 Chassis Manual 5-2 5-3 Remo ving the C hassi s Cover Removing the Chas sis Cover Press th e release tabs to remove the cove r from th e locked position. Press both tab s at the same t ime. Once the top cove r is rele ased from the lock ed position, slide th e cover toward t he rear o f the cha ssis. Lift the cover off t he chassis. 1. 2. 3. W[...]

5-3 Chapter 5: Chassis Setup and Maintenance 5-4 Insta lling H ard Dr ives Removing Hard Dri ve Trays from the Cha ssis Press th e release button o n the dri ve tray . Thi s extends the driv e bay han dle. Use the handle to pull the dr ive out o f the cha ssis. 1. 2. Figure 5 -2: Removing Hard Dri ve 1 2[...]

SC825 Chassis Manual 5-4 The drives are m ounted i n drive carrier s to simplify their install ation an d remov al from the chas sis. These ca rriers also help p romote proper air flow for the drive bays. Figure 5 -3: Chassis Drive T ray Installing a Hard Drive to the Hard Drive Tray Remove t he screws (2) hold ing connecti ng the dr ive tray the [...]

5-5 Chapter 5: Chassis Setup and Maintenance Install a new drive int o the car rier with the prin ted circuit board side faci ng down so that t he mounting holes align wit h those i n the car rier . Secure t he hard d rive by t ightening al l six (6) screws. Replace the drive tray int o the cha ssis, making sure tha t the dri ve tray h andle is com[...]

SC825 Chassis Manual 5-6 5-5 Insta lling a n Optio nal Flo ppy or F ixed Ha rd Dri ve The SC 825 chassis models include two o pen slots for an opti onal floppy drive, and/or hard d isk drive (s). T o util ize these slots, the dummy d rive and the slot co ver must be removed. Removing the Dumm y Drive, Floppy Dr ive or Ha rd Disk D rive Disconnect [...]

5-7 Chapter 5: Chassis Setup and Maintenance 5-6 DVD- ROM Rep laceme nt or In stalla tion Most SC8 25 chassis models include a DVD-ROM which is usually pre-instal led. Installing or Rep lacing a DVD-ROM D rive Power do wn the sy stem and if necess ary , remove t he server from the rack. Remove t he chassis cover . Unplug t he drives power an d data[...]

SC825 Chassis Manual 5-8 5-7 Insta lling t he Moth erboar d I/O Shi eld The I/O shield holds the mot herboard ports in place. Inst all t he I /O sh ield before you inst all the m otherboard. Insta lling the I/ O S hield Installing the I/ O Shield Review t he documenta tion that came wit h your mo therboard. B ecome familia r with com ponent place m[...]

5-9 Chapter 5: Chassis Setup and Maintenance Perma nent and Opt ional Sta ndoffs Standoffs p revent sh ort circu its by securing space between the motherboard and the chassis surface. The SC825 chassis includes perman ent s tandoffs in locat ions used by most motherboar ds. These stando ffs accept the rounde d Phill ips hea d screws i ncluded in th[...]

SC825 Chassis Manual 5-10 Installing the Mo therboard Review t he documenta tion that came wit h your mo therboard. B ecome familia r with com ponent place ment, requir ements, prec autions, and cable connec - tions. Open the chassis cover . As requi red by yo ur motherboa rd, install standoffs in any area s that do not have a permanent standoff. T[...]

5-1 1 Chapter 5: Chassis Setup and Maintenance Add-o n C ard/Exp ansion Sl ot Setup SC825: chassis include I/O slots for add-on c ards and expansion cards. The number of cards you can use de pends on your chas sis model. SC825 LP : Provides 7 low profile add-on ca rd slots. SC825 RC : Provides up to 3 full height/full length ca rd slots. RC2 provi[...]

SC825 Chassis Manual 5-12 Butterfly Bracket Add-o n C ard/Exp ansion Sl ot Setup in SC 825RC (R iser Card) Ch assis SC825 chas sis RC model s allow for up to 3 fu ll height/full l ength card s lots. RC2 allows u p to 3 full hei ght/full len gth card slots and up to 3 low profile c ards slots. Installing Add-on and Expa nsion Cards In RC (Riser Ca[...]

5-13 Chapter 5: Chassis Setup and Maintenance Figure 5 -14: 3 Fu ll Height/Fu ll Length Add-on C ard with 3 Low Profi le Slots Figure 5 -13: 3 Fu ll Height/Fu ll Length Add-on C ard Slide th e riser c ard into the chass is, aligning with bot h the mot herboard slot and the back p anel of t he chassis. If you r riser c ard does not fit inside t he[...]

SC825 Chassis Manual 5-14 Add-o n C ard/Exp ansion Sl ot Setup for SC 825U (Un iversa l Outpu t) SC825U chassis ac cept a slightly smaller "L" sha ped motherboard to allo w fo r a universal expansion card. This universal output card allo ws the s ystems to accept SAS, SCS I, IB, Et hernet, and other types of connects. SC825U c hassis are [...]

5-15 Chapter 5: Chassis Setup and Maintenance 5-8 Insta lling t he Air Shr oud Air s hrouds co ncentrate airflow to m aximize f an efficien cy . Th e SC825 chassis air shroud d oes not r equire screw s to set up. Figure 5 -15: Air Shroud for SC82 5LP Chassis Installing the Air Shroud Confirm t hat your air shrou d matches your cha ssis model. Ea[...]

SC825 Chassis Manual 5-16 Check ing the Se rver's Air Fl ow Checking the A ir Flow Make sur e there a re no obj ects to o bstruct airfl ow in and out of the ser ver . In addition, if you are us ing a fro nt bezel, make sur e the bez el's filter is repl aced periodicall y . Do not operate the serv er without drives or drive trays in the [...]

5-17 Chapter 5: Chassis Setup and Maintenance Three heavy duty fans provide cooling for the chassis. These fans circulate air through the chass is as a means o f lowering the cha ssis interna l temperatur e. 5-9 Syst em Fans Figure 5 -17: System Fan Release T ab Replacing a Syste m Fan If neces sary , open t he chassis while th e power i s running [...]

SC825 Chassis Manual 5-18 Figure 5 -17: Placing the Syst em Fan[...]

5-19 Chapter 5: Chassis Setup and Maintenance Depending on you r chassis model the SC825 Cha ssis has a 560 or 700 watt power supply . This power supply is auto-switch ing capable. This enables it to automatically sense and operate at a 100v to 240v input voltage. An amber light will be illuminated on the power supply when the power is off. An illu[...]

SC825 Chassis Manual 5-20 Replacing the Pow er Supply If your chassis includes a redun dant power supply (at least two powe r mod - ules), y ou can le ave the s erver runnin g and rem ove only one power supply . If your ser ver has o nly one p ower supply , you m ust power down the server a nd unplug t he power cord. Push the release tab (on the ba[...]

5-21 Chapter 5: Chassis Setup and Maintenance Repla cing the Po wer Dist ributor Redundant serv er chassis that are 2U or more hig h require a power distrib utor . The power distribut or pro vides failover and power suppl y redu ndancy . In the unlike ly event yo u must re place the power di stributor , do f ollowing Power do wn the se rver and rem[...]

SC825 Chassis Manual 5-22 Repla cing the DV D-ROM, Fr ont Panel , a nd Floppy Dr ive SC825 chassis mo dels i nclude a slim DVD-ROM, sli m flopp y driv e, and front port panel. Use the instructi ons in this section in the unlikely event that you must replace any of these c omponents. Figure 5 -20: Install the DVD- ROM, Front Panel, and Flopp y Driv[...]

5-23 Chapter 5: Chassis Setup and Maintenance Repla cing or Ins tallin g th e D VD Drive Replacing or Inst alling DVD Drives Power do wn and un plug the system fr om the ou tlet. Remove t he chassis cover . Disconnect the po wer and d ata cables from th e drive t o other c hassis compo - nents in cluding the motherboa rd and ba ckplane. Remove t he[...]

SC825 Chassis Manual 5-24 Repla cing or Ins tallin g th e F ront Port Pa nel Replace or Instal l the Fro nt Port P anel 1. Power down and unplug t he system 2. Remov e the cha ssis cover. 3. Disconnect the power and data cab les f rom the front port panel to other chassis components including the moth erboard and backplane . 4. Remov e the ol d por[...]

5-25 Chapter 5: Chassis Setup and Maintenance 5-1 1 Optio nal Fro nt Beze l The SC825 chassis sup ports an optional full-fa ce locking front bezel for adde d s e- curity . The front bezel is not inc luded with the SC825 chassis, but can be ordered seperately by visiting the Super micro Web site at www .supermicro. com, clicking on the Wher e to Buy[...]

6-1 Chapter 6: Rack I nstallation Chapter 6 Rack Installation 6-1 Over view This chapter pr ovides a quick setup ch ecklist to get your chas sis u p and runn ing. Following thes e ste ps in th e orde r give n sho uld e nable you to have the system operational within a minimum amount of time. 6-2 Unpac king th e Syst em Y ou should inspect the box t[...]

SC825 Chassis Manual 6-2 Rack P recauti ons Ensure that the leveling jacks on t he botto m of the rack are f ully ext ended to the floor with the full wei ght of th e rack re sting on them. In singl e rack in stallation, stabilizers should be attac hed to th e rack. In multi ple rack installation s, the ra cks should be coup led together. Always m[...]

6-3 Chapter 6: Rack I nstallation Rack M ounting Co nsider ations Ambie nt Op erating Temperatu re If installed in a closed or multi- unit rack assembl y , the amb ient operating te mpera- ture of the r ack environment may be greater than the am bient temperatur e o f th e room. Therefore, consideration should be gi ven to instal ling the equip men[...]

SC825 Chassis Manual 6-4 6-4 Rack M ounting I nstruc tions This sec tion provide s information on insta lling the SC825 chas sis into a rack uni t with the rails pro vided. There ar e a variet y of rack units on the market, w hich may mean the assemb ly pro cedure will differ slightly . Y ou shoul d als o refe r to the installatio n instructio ns t[...]

6-5 Chapter 6: Rack I nstallation Figure 6 -2. Identify ing the S ections of the Rac k Rails (right s ide rail shown) Installing the In ner Rails Place th e inner r ack extensio ns on the side of the ch assis aligni ng the ho oks of the chassis with the rail ext ension holes . Make su re the ex tension face s "outward" just li ke the pr e[...]

SC825 Chassis Manual 6-6 Outer Ra ck Rails Outer rai ls attach t o the serve r rack and hold the s erver in pl ace. The outer rails for the SC82 5 chassis extend b etween 30 inches a nd 33 inc hes. Installing the Ou ter Rails to the Rack Attach t he short bracket t o the out side of t he long b racket. Y ou m ust align the pins wit h the sli des. A[...]

6-7 Chapter 6: Rack I nstallation Figure 6 -4: Installi ng the Ra ck Rails Installing the Ch assis into a Rack Confirm t hat chassis includes the in ner rails (A) and rail e xtensions (B ). Also, confirm t hat the o uter rails (C) are installed on the rack. Line cha ssis rails (A and B) with the front of the rack rails (C) . Slide th e chassis ra[...]

SC825 Chassis Manual 6-8 Figure 6 -5. Fully installed SC825 C hassis[...]

A-1 Appendix A : Chassis Cables Appendix A SC825 Chassis Cables A-1 Over view This app endix lists supported cables for your chassis system. It onl y includes the most commonly used components and configurations. For more compatible cables, refer to t he manuf acturer of the motherb oard you are using and our Web site at: www .supermicro.c om. A-3[...]

SC825 Chassis Manual A-2 SC825TQ-560LP Part # T ype Length Description CBL-0157L Ribbon 9" 8 pin to 8 pin ribbon cable for SGPIO, PB free CBL-0087 Ribbon, Round 20" 16 pin to 16 pin ribbon cable for control panel CBL-0139L Wire 60 cm IDE 80-Wire cable for DVD ROM - Cable 6' Regional power cord CBL-0180L SA T A various Set for 4 SA T [...]

A-3 Appendix A : Chassis Cables A-4 Cable s Incl uded wit h SC82 5S2 Cha ssis ( SCSI) SC825S2-R700LP Part # T ype Length Description CBL-033L-U320 Ribbon 9" (23 cm) UL TRA 320, PB FREE CBL-0139L Wire 50 cm IDE 80-Wire cable for DVD ROM - Cable 6' Regional power cord CBL-0063L Cable 20" SCSI Cable for SC81 1S-350 SC825S2-R700RC2/R700R[...]

SC825 Chassis Manual A-4 A-5 Compa tible Cables These ca bles are compatible with th e SC825 C hassis. Description : This cabl e ha s on e S FF-8484 (32 pin) co nnector on one end an d 4 SAS connectors (7 pins each) a t the ot her . Th is cable connects from the Host (motherboar d or othe r controller ) to the backplane SAS hard drive po rt. Cable [...]

A-5 Appendix A : Chassis Cables Exten ding Powe r C ables Although Super Micro chassis are designed to be efficient and cost-effective, some compatible motherboa rds have power con nectors loca ted in di fferent areas. T o use these motherboards you may have to extend the power cables to the mother boards. T o do this, use the following chart as a[...]

B-1 Appendix B: Power Supply Specificat ions Appendix B SC825 Power Supply Specifications This app endix lists power supply sp ecifications for your chassis system. SC825 700W 560W MFR Part # PWS-0065 PWS-561-1H20 Rated AC V oltage 100 - 240V 50 - 60Hz 9.5 - 4.5 Amp 100 - 240V 50 - 60Hz 8.5 - 4 Amp +5V standby 4 Amp 3 Amp +12V 58 Amp 43.6 Amp +5[...]

SC825 Chassis Manual B-2 Note s[...]

C-1 Safety Informati on and T echnical Specifi cations Appendix C SAS-825TQ Backplane Specifications Safety Guidelines T o avoid personal injury and property damage, carefully follow all the safe ty steps listed b elow when accessing your sy stem or h andling the component s. C-1 ESD Sa fety G uideli nes Electric Static Discharge (ESD) can damage[...]

C-2 SC825 Chassis Manual C-3 An Imp ortant N ote to U sers All images and layouts shown in this user's guide are based upon the latest PCB Revision av ailable at the t ime of publishin g. The card you have re ceived may or may not look e xactly the same as the grap hics shown in this manual. •[...]

C-3 Safety Informati on and T echnical Specifi cations Jumper Settings and Pin Definitions C-4 Front C onnect ors and J umpers Front View Front Co nnector s #1. JP13 : 4-Pin P WR Connector #2. JP10 : 4-Pin P WR Connector #3. J18: CD-ROM/Flop py PWR Co nnector #4. J17: CD-ROM/Flop py PWR Co nnector #5. JP26 : Activity I n LED Hea der #6. JP45 : I [...]

C-4 SC825 Chassis Manual #6-#7. I 2 C Connectors The I 2 C Connectors, designated JP44 and JP45, are used to monitor HDD activity and status. See the table on the right for pin definitions. I 2 C Connector Pin Definitions (JP44 and JP45) Pin# Definition 1 Data 2 Ground 3 Clock 4 No Connection SAS Activity LED Header Pin Definitions (JP26) Pin #[...]

C-5 Safety Informati on and T echnical Specifi cations #8-#9. Sideband Headers The sideband headers are designated JP51 and JP52. For SES-2 to work proper ly , you must conn ect an 8-pin sideband c able to JP51 and JP52. See the ta ble to the right for pin definition s. Sideband Headers (JP51 and JP52) Pin # Definition Pin # Definition 2 Backpl[...]

C-6 SC825 Chassis Manual 1 1 16 32 48 BAR CODE REV 2.0 SAS825TQ 1 GND GND +12V +5V GND GND +12V +5V #2 I C #1 ACT_IN JP29:9072 RESET I C SIDEBAND #2 SIDEBAND #1 2 2 + + + + + + + + + + + + + + 1 1 1 16 32 48 GND GND +12V +5V GND GND +12V +5V + + + BAR CODE + + + REV 2.0 SAS825TQ #2 2 I C #1 ACT_IN JP29:9072 RESET 2 I C SIDEBAND #2 SIDEBAND #1 + + +[...]

C-7 Safety Informati on and T echnical Specifi cations SGPIO Setting (Only) Jumper Jumper Setting Note JP18 Open Closed: Buzzer Reset (Default) JP29 Open Closed: MG9072 Reset (Default) JP33 1-2 Controller ID #1 JP34 1-2 Backplane ID #1 1-2: ID#0 JP36 1-2 Controller ID #2 JP37 1-2 Backplane ID #2 1-2: ID#0 JP38 Off I 2 C Reset #2 JP40 On I 2 C Rese[...]

C-8 SC825 Chassis Manual 825TQ SAS Connectors Connector Specificatio n J1 SAS#0 HDD (connected to HDD) J2 SAS#1 HDD (connected to HDD) J3 SAS#2 HDD (connected to HDD) J4 SAS#3 HDD (connected to HDD) J9 SAS#4 HDD (connected to HDD) J11 SAS#5 HDD (connected to HDD) J13 SAS#6 HDD (connected to HDD) J15 SAS#7 HDD (connected to HDD) Rear LED Indicators [...]

D-1 Safety Informati on and T echnical Specifi cations Appendix D SAS-825TQ Backplane Specifications Safety Guidelines T o avoid personal injury and property damage, carefully follow all the safe ty steps listed b elow when accessing your sy stem or h andling the component s. D-1 ESD Sa fety G uideli nes Electric Static Discharge (ESD) can damage[...]

D-2 SC825 Chassis Manual D-3 An Imp ortant N ote to U sers All images and layouts shown in this user's guide are based upon the latest PCB Revision av ailable at the t ime of publishin g. The card you have re ceived may or may not look e xactly the same as the grap hics shown in this manual. •[...]