Gigabyte GA-8I915P Duo Pro-A User manual

GA-8I915PSeries
Intel®Pentium®4LGA775 ProcessorMotherboard
User'sManual
Rev.2002
12ME-8I915PU-2002

Motherboard GA-8I915P/GA-8I915P Ultra/ GA-8I915P Pro/GA-8I915P-G
Aug. 17, 2004
Aug.17, 2004
Motherboard
GA-8I915P/GA-8I915P Ultra/GA-8I915P Pro/GA-8I915P-G

Copyright
©2004 GIGA-BYTETECHNOLOGYCO., LTD.All rightsreserved.
The trademarks mentioned inthe manualarelegallyregistered totheirrespectivecompanies.
Notice
The written contentprovided withthisproductisthe propertyofGigabyte.
Nopartofthismanualmaybe reproduced,copied,translated,ortransmitted inanyformorbyany
meanswithoutGigabyte'spriorwritten permission.Specificationsand featuresaresubjectto
change withoutpriornotice.
ProductManualClassification
Inordertoassistinthe useofthisproduct, Gigabytehascategorized the usermanualinthe
following:
nForquick installation,pleaserefertothe "HardwareInstallation Guide"included withthe
product.
nFordetailed productinformation and specifications,pleasecarefullyread the
"ProductUserManual".
nFordetailed informationrelated toGigabyte'sunique features,pleasego to"Technology
Guide"section on Gigabyte'swebsitetoread ordownload the information you need.
Foremoreproductdetails,pleaseclick ontoGigabyte'swebsiteatwww.gigabyte.com.tw

-4-
TableofContents
GA-8I915P(Ultra)(Pro)(-G)MotherboardLayout ........................................................6
BlockDiagram...........................................................................................................7
Chapter1HardwareInstallation ..................................................................................9
1-1ConsiderationsPriortoInstallation .........................................................................9
1-2FeatureSummary.................................................................................................10
1-3Installation ofthe CPUand Heatsink...................................................................12
1-3-1Installation ofthe CPU.................................................................................... 12
1-3-2Installation ofthe Heatsink.............................................................................. 13
1-4Installation ofMemory...........................................................................................14
1-5Installexpansioncards.........................................................................................16
1-6I/OBack PanelIntroduction .................................................................................17
1-7ConnectorsIntroduction ........................................................................................18
Chapter2BIOSSetup ............................................................................................ 29
The MainMenu (Forexample:BIOSVer.:F1)............................................................30
2-1StandardCMOSFeatures...................................................................................32
2-2Advanced BIOSFeatures....................................................................................34
2-3IntegratedPeripherals...........................................................................................36
2-4PowerManagementSetup ...................................................................................40
2-5PnP/PCIConfigurations.......................................................................................42
2-6PCHealthStatus..................................................................................................43
2-7MBIntelligentTweaker(M.I.T.).............................................................................44
2-8 LoadFail-SafeDefaults.........................................................................................46
2-9 LoadOptimizedDefaults.......................................................................................46
2-10 SetSupervisor/UserPassword..........................................................................47
2-11 Save&ExitSetup ...............................................................................................48
2-12 ExitWithoutSaving ..............................................................................................48

-5-
Chapter3Install Drivers......................................................................................... 49
3-1Install ChipsetDrivers..........................................................................................49
3-2SoftwareApplications............................................................................................50
3-3DriverCD Information ...........................................................................................50
3-4HardwareInformation ...........................................................................................51
3-5ContactUs............................................................................................................51
Chapter4Appendix............................................................................................... 53
4-1Unique SoftwareUtilities......................................................................................53
4-1-1Xpress RecoveryIntroduction ....................................................................... 54
4-1-2FlashBIOSMethod Introduction .................................................................... 57
4-1-3 2 /4/5.1/7.1ChannelAudioFunction Introduction .................................. 68
4-2Troubleshooting ......................................................................................................74

-6-
GA-8I915P(Ultra)(Pro)(-G)MotherboardLayout
KB_MS
ATX_12V
CPU_FAN
LGA775
LPT
ATX
GA-8I915P (Ultra)(Pro)(-G)
COMA
DDR1
DDR2
DDR3
DDR4
PWR_FAN
SPDIF_OUT
SPDIF_IN
CODEC
F_USB1
IT8712
IntelICH 6
BACK
BIOS
PCI2
F2_1394
F1_1394
BAT
PCI1
F_USB2
TSB43AB23
PWR_LED
F_PANEL
SYS_FAN
CLR_CMOS
PCIE_3
PCIE_2
MAIN
BIOS
IR
S_ATA1
AUDIO1
Intel915P
PCIE_16
USB
PCIE_1
AZALIA_FP
IDE1
FDD
CD_IN
USB LAN
S_ATA4
S_ATA2
Marvell
8001AUDIO2
S_ATA3
NB_FAN
IDE3
IDE2
IT8212
OnlyforGA-8I915PUltra.
OnlyforGA-8I915PPro.
OnlyforGA-8I915P-G.

-7-
Block Diagram
LGA775
Processor
CPUCLK+/-(200/133MHz)
PCIExpress x16 33MHz
Host
Interface
Intel
915P
MCH MCHCLK(200/133MHz)
66MHz
48MHz
LPTPort
COMPort
Floppy
PS/2KB/Mouse
24MHz
33MHz
IT8712
4SerialATA
ATA33/66/100
IDE1Channels
Intel
ICH6
3PCIExpressx 1Ports
14.318MHz
DualBIOS
8USB
Ports
PCIExpress x1Bus
PCICLK
(33MHz)
2PCI
PCIBus
Line-Out
MIC
Surround Speaker Out
Center/Subwoofer Speaker Out
Back Surround Speaker Out
CODEC
Line-In
SPDIF In
SPDIF Out
3 IEEE1394
TSB43AB23
Marvell
8001
RJ45
DDR 400/333/266MHzDIMM
DualChannelMemory
PCI-ECLK
(100MHz)
PCI-ECLK
(100MHz)
IDE2/IDE3
IT8212
IDERAID
OnlyforGA-8I915PUltra.
OnlyforGA-8I915PPro.
OnlyforGA-8I915P-G.

-8-

HardwareInstallation-9-
English
1-1ConsiderationsPriortoInstallation
PreparingYourComputer
The motherboardcontainsnumerousdelicateelectroniccircuitsand componentswhichcan
becomedamaged asaresultofelectrostaticdischarge (ESD).Thus,priortoinstallation,please
followthe instructionsbelow:
1.Pleaseturnoff the computerand unplug itspowercord.
2.When handling the motherboard,avoidtouching anymetalleadsorconnectors.
3. It isbesttowearan electrostaticdischarge (ESD)cuff when handling electroniccomponents
(CPU,RAM).
4.Priortoinstalling the electroniccomponents,pleasehavetheseitemson top ofan antistaticpad or
withinaelectrostaticshielding container.
5.Pleaseverifythatyou the powersupplyisswitched off beforeunplugging the powersupplyconnector
fromthe motherboard.
InstallationNotices
1.Priortoinstallation,pleasedo notremovethe stickerson the motherboard.Thesestickersarerequired
forwarrantyvalidation.
2.Priortothe installation ofthe motherboardoranyhardware,pleasefirstcarefullyread the information
inthe provided manual.
3.Beforeusing the product, pleaseverifythatall cablesand powerconnectorsareconnected.
4.Topreventdamage tothe motherboard,pleasedo notallowscrewstocomeincontactwiththe
motherboardcircuitoritscomponents.
5.Pleasemakesurethereareno leftoverscrewsormetalcomponentsplaced on the motherboardor
withinthe computercasing.
6.Pleasedo notplacethe computersystemon an uneven surface.
7.Turning on the computerpowerduring the installation process can lead todamage tosystem
componentsaswell asphysicalharmtothe user.
8. If you areuncertainaboutanyinstallation stepsorhaveaproblemrelated tothe useofthe product,
pleaseconsultacertified computertechnician.
InstancesofNon-Warranty
1.Damage due tonaturaldisaster,accidentorhuman cause.
2.Damage asaresultofviolating the conditionsrecommended inthe usermanual.
3.Damage due toimproperinstallation.
4.Damage due touseofuncertified components.
5.Damage due touseexceeding the permitted parameters.
6.Productdetermined tobe an unofficialGigabyteproduct.
Chapter1HardwareInstallation

GA-8I915PSeriesMotherboard-10 -
English
CPUwSupportsthe latestIntel®Pentium®4LGA775 CPU
wSupports800/533MHzFSB
wL2 cache varieswithCPU
MotherboardwGA-8I915PSeriesMotherboard:
GA-8I915PUltra/GA-8I915PPro/GA-8I915P-G/GA-8I915P
ChipsetwNorthbridge:Intel®915PExpress Chipset
wSouthbridge:Intel®ICH6
Memoryw4DDR DIMM memoryslots(supportsup to4GBmemory)(Note1)
wSupportsdualchannelDDR400/333/266 DIMM
wSupports2.5VDDR DIMM
Slotsw1PCIExpress x16 slot
w3PCIExpress x1slots
w2PCIslots
IDEConnectionsw1IDEconnection (UDMA33/ATA66/ATA100),allowsconnection of2
IDEdevices(IDE1)
w2IDEconnection (UDMA33/ATA66/ATA100/ATA133),compatiblewith
RAID,allowsconnection of4IDEdevices(IDE2,IDE3)
FDD Connectionsw1FDD connection,allowsconnection of2FDD devices
OnboardSATAw4SerialATAconnections
Peripheralsw1parallelportsupporting Normal/EPP/ECPmode
w1Serialport(COMA)
w8USB 2.0/1.1ports(rearx4,frontx4viacable)
w3IEEE1394 ports(requirescable)
w1frontaudioconnector
w1IRconnector
w1PS/2keyboardport
w1PS/2mouseport
OnboardLANwOnboardMarvell 8001 chip(10/100/1000 Mbit)
w1RJ45 port
OnboardAudiowC-Media9880 CODEC(UAJ)
wSupportsJack Sensing function
wSupports2/4/5.1/7.1channelaudio
wSupportsLine In;Line Out;MIC;Back Surround SpeakerOut;
Center/SubwooferSpeakerOut;Surround SpeakerOutconnection
wSupportsSPDIFIn/Outconnection
wCD In
(Note1)Due tostandardPCarchitecture,acertainamountofmemoryisreserved forsystemusage and
thereforethe actualmemorysizeisless than the stated amount.
Forexample,4GBofmemorysizewill instead be shownas3.xxGBmemoryduring systemstartup.
1-2FeatureSummary
OnlyforGA-8I915PUltra.
OnlyforGA-8I915PPro.
OnlyforGA-8I915P-G.

HardwareInstallation-11 -
English On-BoardIDERAIDwOnboardGigaRAIDIT8212 chipset
(IDE2,IDE3)wSupportsdisk striping (RAID0)ordisk mirroring (RAID1)or
striping +mirroring (RAID0+RAID1)
wSupportsJBODfunction
wSupportsconcurrentdualATA133 IDEcontrolleroperation
wSupportsATAPImode forHDD
wSupportsIDEbusmasteroperation
wSupportsATA133/RAIDmode switchbyBIOS
wDisplays statusand errorchecking messagesduring boot-up
wMirroring supportsautomaticbackground rebuilds
wFeaturesLBA and Extended Interrupt13 drivetranslation in
controlleronboardBIOS
I/OControlwIT8712
HardwareMonitorwCPU/System/Powerfan speed detection
wCPUtemperaturedetection
wSystemvoltage detection
wCPU/System/Powerfan failurewarning
wCPUSmartFANControl
BIOSwUseoflicensed AWARD BIOS
wSupportsDualBIOS/Q-Flash
AdditionalFeatureswSupports@BIOS
wSupportsEasyTune
Overclocking wOverVoltage viaBIOS(CPU/DDR/PCI-E)
wOverClock viaBIOS(CPU/DDR)
FormFactorwATXformfactor;30.5cmx24.4cm
OnlyforGA-8I915PUltra.
OnlyforGA-8I915PPro.

GA-8I915PSeriesMotherboard-12 -
English
1-3Installation oftheCPUand Heatsink
Beforeinstalling the CPU,pleasecomplywiththe following conditions:
1.Pleasemakesurethatthe motherboardsupportsthe CPU.
2.Pleasetakenoteofthe one indented cornerofthe CPU.If you install the CPUinthe wrong
direction,the CPUwill notinsertproperly.If thisoccurs,pleasechange the insertdirection
ofthe CPU.
3.Pleaseadd an even layerofheatsinkpastebetween the CPUand heatsink.
4.Pleasemakesurethe heatsinkisinstalled on the CPUpriortosystemuse,otherwise
overheating and permanentdamage ofthe CPUmayoccur.
5.Pleasesetthe CPUhostfrequency inaccordancewiththe processorspecifications.It isnot
recommended thatthe systembusfrequency be setbeyond hardwarespecificationssinceit
doesnotmeetthe required standardsforthe peripherals.If you wishtosetthe frequency
beyond the properspecifications,pleasedo soaccording toyourhardwarespecifications
including the CPU,graphics card,memory,harddrive,etc.
HTfunctionalityrequirementcontent:
Enabling the functionalityofHyper-Threading Technologyforyourcomputersystemrequiresall
ofthe following platformcomponents:
-CPU:AnIntel®Pentium4ProcessorwithHTTechnology
-Chipset: AnIntel®ChipsetthatsupportsHTTechnology
-BIOS:ABIOSthatsupportsHTTechnologyand hasitenabled
-OS:Anoperation systemthathasoptimizationsforHTTechnology
1-3-1Installation oftheCPU
Fig.1
Gentlylift the metal
leverlocated on the
CPUsockettothe
uprightposition.
MetalLeverFig.2
Removethe plastic
covering on the CPU
socket.
Fig.3
Noticethe small gold
colored triangle
located on the edge of
the CPUsocket.
Align the indented
cornerofthe CPUwith
Fig.4
Oncethe CPUis
properlyinserted,
pleasereplacethe
plasticcovering and
pushthe metallever
back intoitsoriginal
position.the triangleand gentlyinsertthe CPUintoposition.
(Grasping the CPUfirmlybetween yourthumb
and forefinger,carefullyplaceitintothe socketina
straightand downwardsmotion.Avoidtwisting or
bending motionsthatmightcausedamage tothe
CPUduring installation.)

HardwareInstallation-13 -
English
1-3-2Installation oftheHeatsink
Fig.1
Pleaseapplyan even layerofheatsinkpasteon
the surfaceofthe installed CPU.
The heatsinkmayadheretothe CPUasaresultofhardening ofthe heatsinkpaste.Toprevent
suchan occurrence,itissuggested thateitherthermaltape ratherthan heatsinkpastebe used
forheatdissipation orusing extremecarewhen removing the heatsink.
Fig.6
Finally,pleaseattachthe powerconnectorofthe
heatsinktothe CPUfan headerlocated on the
motherboard.
Fig.3
Placethe heatsinkatop the CPUand makesure
the pushpinsaimtothe pinholeon the
motherboard.Pressing downthe pushpins
diagonally.
Fig.2
(Turning the pushpinalong the direction ofarrow
istoremovethe heatsink,on the contrary,isto
install.)
Pleasenotethe direction ofarrowsign on the male
pushpindoesn'tfaceinwardsbeforeinstallation.
(Thisinstruction isonlyforIntelboxed fan)
Fig.4
Pleasemakesurethe Maleand Femalepushpin
arejoin ed closely.(forde tail ed installation
instructions,pleaserefertothe heatsinkinstallation
section ofthe usermanual)
Fig.5
Pleasecheck the back ofmotherboardafter
installing.If the pushpinisinserted asthe picture,
the installation iscomplete.
MalePushPin
FemalePushPin
The top ofFemalePushPin

GA-8I915PSeriesMotherboard-14 -
English
Beforeinstalling the memorymodules,pleasecomplywiththe following conditions:
1.Pleasemakesurethatthe memoryused issupported bythe motherboard.It isrecommended that
memoryofsimi larcapacity,spe cification san d bran d be use d.
2.Beforeinstallin g orremoving memorymodules,ple asemakesuretha tth e comp uter
p owerisswitched
off topreven th ardwaredamage.
3.Memorymoduleshaveafoolproofinsertion design.Amemorymodulecan be installed inonlyone
direction.If you areunabletoinsertthe module,pleaseswitchthe direction.
Notch
DDR
1-4Installation ofMemory
The motherboardsupportsDDR memorymodules,wherebyBIOSwill automaticallydetectmemory
capacityand specifications.Memorymodulesaredesigned sothattheycan be inserted onlyinone
direction.The memorycapacityused can differwitheachslot.
Fig.1
The DIMM sockethasanotch,sothe DIMM memorymodulecan
onlyfitinone direction.Insertthe DIMM memorymodulevertically
intothe DIMM socket. Then pushitdown.
Fig.2
Closethe plasticclipatbothedgesofthe DIMM socketstolock
the DIMM module.
Reversethe installation stepswhen you wishtoremovethe DIMM
module.

HardwareInstallation-15 -
English
DualChannelDDR
GA-8I915PSeriessupportsthe DualChannelTechnology.Afteroperating the DualChannelTechnology,
the bandwidthofMemoryBuswill add doubleup to6.4GB/s.
GA-8I915PSeriesincludes4DIMM sockets,and eachChannelhastwoDIM M socketsasfollowing:
ChannelA:DDR 1,DDR 2
ChannelB:DDR 3,DDR 4
If you wanttooperatethe DualChannelTechnology,pleasenotethe following explanationsdue
tothe limitation ofIntelchipsetspecifications.
1.One/three DDR memorymoduleisinstalled:The DualChannelTechnologycan'toperate
when onlyone DDR memorymoduleisinstalled.
2.TwoDDR memorymodulesareinstalled (the samememorysizeand type):The Dual
ChannelTechnologywill operatewhen twomemorymodulesareinserted individuallyinto
ChannelAand B.If you install twomemorymodulesinthe samechannel,the DualChannel
Technologywill notoperate.
3.FourDDR memorymodulesareinstalled:If you install fourmemorymodulesatthe same
time,the DualChannelTechnologywill operateonlywhen thosemoduleshavethe same
memorysizeand type.
We'll stronglyrecom mend ourusertoslottwoDDR memorymodulesintothe DIMMswiththe same
colorinorderforDualChannelTechnologytowork.
The following tableisforDualChannelTechnologycombination:(DS:DoubleSide,SS:SingleSide)
2memorymodules
4memorymodules
DDR1DDR 2DDR3DDR4
DS/SS X DS/SS X
XDS/SS X DS/SS
DS/SS DS/SS DS/SS DS/SS

GA-8I915PSeriesMotherboard-16 -
English
1-5Install expansion cards
You can install yourexpansion cardbyfollowing the stepsoutlined below:
1.Read the related expansion card'sinstruction documentbeforeinstall the expansion cardintothe
computer.
2.Removeyourcomputer'schassiscover,screwsand slotbracketfromthe computer.
3.Press the expansion cardfirmlyintoexpansion slotinmotherboard.
4.Besurethe metalcontactson the cardareindeed seated inthe slot.
5.Replacethe screwtosecurethe slotbracketofthe expansion card.
6.Replaceyourcomputer'schassiscover.
7.Poweron the computer,ifnecessary,setup BIOSutilityofexpansion cardfromBIOS.
8. Install related driverfromthe operating system.
Installing aPCIExpress x16 expansion card:
Pleasecarefullypull outthe small white-
drawablebaratthe end ofthe
PCIExpress x16 slotwhen you tryto
install/Uninstall the VGAcard.Pleasealign
the VGAcardtothe onboard
PCIExpress x16 slotand press firmly
downon the slot.MakesureyourVGA
cardislocked bythe small white-draw-
ablebar.

HardwareInstallation-17 -
English
1-6I/OBack PanelIntroduction
PS/2Keyboardand PS/2Mouse Connector
Toinstall aPS/2portkeyboardand mouse,plug the mousetothe upperport(green)and the keyboard
tothe lowerport(purple).
ParallelPort
The parallelportallowsconnection ofaprinter,scannerand otherperipheraldevices.
SPDIF_O(SPDIFOut)
The SPDIFoutputiscapableofproviding digitalaudiotoexternalspeakersorcompressed AC3
datatoan externalDolbyDigitalDecoder.
SPDIF_I(SPDIFIn)
UseSPDIFInfeatureonlywhen yourdevicehasdigitaloutputfunction.
COMA(SerialPort)
Connectstoserial-based mouseordataprocessing devices.
USBport
Beforeyou connectyourdevice(s)intoUSB connector(s),pleasemakesureyourdevice(s)such
asUSB keyboard,mouse,scanner,zip,speaker...etc.haveastandardUSB interface.
AlsomakesureyourOSsupportsUSB controller.If yourOSdoesnotsupportUSB controller,
pleasecontactOSvendorforpossiblepatchordriverupgrade.Formoreinformation please
contactyourOSordevice(s)vendors.
LAN Port
The provided Internetconnection isGigabitEthernet, providing datatransferspeedsof
10/100/1000Mbps.
LineIn
DeviceslikeCD-ROM,walkman etc.can be connected toLine Injack.
LineOut(FrontSpeakerOut)
Connectthe stereo speakers,earphone orfrontsurround channelstothisconnector.
MICIn
Microphone can be connected toMICInjack.
OnlyforGA-8I915PUltra.
OnlyforGA-8I915PPro.
OnlyforGA-8I915P-G.

GA-8I915PSeriesMotherboard-18 -
English
1-7ConnectorsIntroduction
2
1
14
4
18
8
3
12
13
16
17 11
15
7
5
10
19
You can useaudiosoftwaretoconfigure2-/4-/5.1-/7.1-channelaudiofunctioning.
6
Back SurroundSpeakerOut
Connectthe back surround channelstothisconnector.
Center/SubwooferSpeakerOut
Connectthe Center/Subwooferchannelstothisconnector.
Surround SpeakerOut
Connectthe surround channelstothisconnector.
1)ATX_12V
2)ATX(PowerConnector)
3)CPU_FAN
4)SYS_FAN
5)PWR_FAN
6)NB_FAN
7)FDD
8)IDE1
9)IDE2/IDE3
10)S_ATA1/S_ATA2/S_ATA3/S_ATA4
11)PWR_LED
12)F_PANEL
13)AZALIA_FP
14)CD_IN
15)F_USB1/F_USB2
16)F1_1394 /F2_1394
17)IR
18)CLR_CMOS
19)BAT
9
OnlyforGA-8I915PUltra.
OnlyforGA-8I915PPro.

HardwareInstallation-19 -
English
PinNo.Definition
1GND
2GND
3+12V
4+12V
1/2)ATX_12V/ATX(PowerConnector)
Withthe useofthe powerconnector,the powersupplycan supplyenough stablepowertoall the
componentson the motherboard.Beforeconnecting the powerconnector,pleasemakesurethatall
componentsand devicesareproperlyinstalled.Align the powerconnectorwithitsproperlocation on
the motherboardand connecttightly.
The ATX_12Vpowerconnectormainlysuppliespowertothe CPU.If the ATX_12Vpowerconnector
isnotconnected,the systemwill notstart.
Caution!
Pleaseuseapowersupplythatisabletohandlethe systemvoltage requirements.It is
recommended thatapowersupplythatcan withstand high powerconsumption be used (300Wor
greater).Ifapowersupplyisused thatdoesnotprovide the required power,the resultcan lead toan
unstablesystemorasystemthatisunabletostart.
Pleaseremovethe stickeron the motherboardbeforeplugging inwhiletheATXpowersupplieris24
pins;Otherwise,pleasedo notremoveit.
PinNo.Definition
1 3.3V
2 3.3V
3GND
4VCC
5GND
6VCC
7GND
8PowerGood
9 5VSB(stand by+5V)
10 +12V
11 +12V
12 3.3V(Onlyfor24pinsATX)
13 3.3V
14 -12V
15 GND
16 PS_ON(softOn/Off)
17 GND
18 GND
19 GND
20 -5V
21 VCC
22 VCC
23 VCC
24 GND
2 4
1 3
1 2
1
3
1
4
2

GA-8I915PSeriesMotherboard-20 -
English
3/4/5)CPU_FAN /SYS_FAN /PWR_FAN (CoolerFanPowerConnector)
The coolerfan powerconnectorsuppliesa+12Vpowervoltage viaa3-pin/4-pin(onlyfor
CPU_FAN)powerconnectorand possessesafoolproofconnection design.
Mostcoolersaredesigned withcolor-coded powerconnectorwires.Ared powerconnector
wireindicatesapositiveconnection and requiresa+12Vpowervoltage.The black connector
wireisthe ground wire(GND).
Pleaseremembertoconnectthe powertothe coolertopreventsystemoverheating and
failure.
Caution!Pleaseremembertoconnectthe powertothe CPUfan topreventCPUoverheating
and failure.
1
1
CPU_FAN
SYS_FAN
PWR_FAN
1
PinNo.Definition
1GND
2+12V
3Sense
4SpeedControl
(OnlyforCPU_FAN)
6)NB_FAN (ChipFanConnector)
If you installed wrong direction,the chipfan will notwork.Sometimeswill damage the chipfan.
(Usuallyblack cableisGND)
PinNo.Definition
1+12V
2GND
1