Global American Inc. 2807790 User manual

User’s Manual
Mini-ITXMMotherboard22807790
Version 1.0, August
2007

Copyrights
This manual is copyrighted and all rights are reserved. It does not allow any non authorization in
copied, photocopied, translated or reproduced to any electronic or machine readable form in
whole or in part without prior written consent from the manufacturer.
In general, the manufacturer will not be liable for any direct, indirect, special, incidental or
consequential damages arising from the use of inability to use the product or documentation, even
if advised of the possibility of such damages. The manufacturer keeps the rights in the subject to
change the contents of this manual without prior notices in order to improve the function design,
performance, quality and reliability. The author assumes no responsibility for any errors or
omissions, which may appear in this manual, nor does it make a commitment to update the
information contained herein.
Trademarks
Intel is a registered trademark of Intel Corporation.
Award is a registered trademark of Award Software, Inc.
All other trademarks, products and or product's name mentioned herein are mentioned for
identification purposes only, and may be trademarks and/or registered trademarks of their
respective companies or owners.

iii
SafetyInstructions
CAUTION: Dangerofexplosionifbattery isincorrectlyreplaced.
Replaceonlywiththesameorequivalenttyperecommendedbythe
manufacturer.
1. Alwaysreadthe safetyinstructionscarefully.
2. KeepthisUser’sManualforfuturereference.
3. Keep thisequipmentawayfromhumidity.
4. Laythisequipmenton areliableflatsurfacebeforesettingitup.
5. Theopeningsontheenclosureareforairconvectionhenceprotectstheequip-
mentfromoverheating.DONOTCOVERTHEOPENINGS.
6. Makesurethevoltage ofthepowersourceandadjustproperly110/220Vbe-
foreconnecting theequipmenttothepowerinlet.
7. Placethepowercordsuchawaythatpeoplecannotstep on it.Donotplace
anythingoverthe powercord.
8. AlwaysUnplugthePowerCordbeforeinserting anyadd-oncardormodule.
9. Allcautionsandwarningson the equipment should benoted.
10.Neverpouranyliquidintothe openingthatcoulddamageorcauseelectrical
shock.
11. Ifanyofthefollowingsituationsarises,get theequipmentchecked byservice
personnel:
†Thepowercordorplug isdamaged.
†Liquidhaspenetrated intotheequipment.
†Theequipment hasbeen exposedtomoisture.
†Theequipmentdoesnotworkwelloryou cannotgetit workaccordingto
User’sManual.
†Theequipmenthasdroppedand damaged.
†Theequipment hasobvioussign of breakage.
12.DONOT LEAVE THISEQUIPMENT INANENVIRONMENT UNCONDITIONED,STOR-
AGETEMPERATUREABOVE600 C(1400F), IT MAYDAMAGETHEEQUIPMENT.

iv
FCC-BRadioFrequencyInterferenceStatement
Thisequipmenthasbeen
testedandfoundtocomply
withthe limitsforaClass B
digitaldevice,pursuanttoPart
15oftheFCCRules.Theselimitsaredesignedtoprovidereasonableprotection
againstharmfulinterferenceinaresidentialinstallation. Thisequipmentgenerates,
usesandcanradiateradio frequency energyand, ifnot installedand usedin accor-
dancewiththeinstructions,maycauseharmful interferencetoradio communications.
However,thereisnoguaranteethatinterferencewill notoccurinaparticular
installation.Ifthisequipmentdoescauseharmful interferencetoradio ortelevision
reception, whichcanbedeterminedbyturning theequipmentoff and on, theuseris
encouraged totrytocorrect theinterferencebyoneormoreofthe measureslisted
below.
†Reorientorrelocatethereceivingantenna.
†Increasetheseparation between theequipmentandreceiver.
†Connectthe equipmentintoan outletonacircuitdifferentfromthat to
whichthereceiverisconnected.
†Consult thedealeroranexperiencedradio/televisiontechnician forhelp.
Notice1
Thechangesormodificationsnotexpresslyapprovedbythe partyresponsible for
compliancecouldvoidtheuser’sauthoritytooperatetheequipment.
Notice2
ShieldedinterfacecablesandA.C.powercord,if any,must beused in orderto
complywiththeemissionlimits.
VOIRLANOTICED’ INSTALLATIONAVANTDERACCORDERAURESEAU.
2807790
ThisdevicecomplieswithPart15oftheFCCRules.Operationissubject tothe
followingtwo conditions:
(1)thisdevicemaynotcauseharmfulinterference,and
(2)thisdevicemustacceptanyinterferencereceived,includinginterferencethat
maycauseundesiredoperation.

viii
CONTENTS
TechnicalSupport.................................................................................................ii
SafetyInstructions................................................................................................iii
FCC-BRadioFrequency InterferenceStatement...................................................iv
WEEE (WasteElectricaland ElectronicEquipment)Statement................................v
Chapter 1ProductOverview..........................................................................1-1
MainboardSpecifications.............................................................................1-2
Block Diagram...............................................................................................1-4
MainboardLayout........................................................................................1-5
PowreConsumption....................................................................................1-6
SafetyCompliance&MTBF..........................................................................1-7
BoardDimension..........................................................................................1-8
Back Panel&I/OShield Drawing..................................................................1-9
Chapter 2HardwareSetup.............................................................................2-1
Quick ComponentsGuide.............................................................................2-2
Memory.......................................................................................................2-3
CPU(CentralProcessing Unit)......................................................................2-4
PowerSupply..............................................................................................2-7
Back Panel...................................................................................................2-8
Connectors................................................................................................2-10
Jumpers.....................................................................................................2-16
Slots..........................................................................................................2-17
Chapter 3SystemResources.......................................................................3-1
WatchDogTimerSetting..............................................................................3-2
AMIPOSTCode...........................................................................................3-3
ResourceList..............................................................................................3-6

2807790 Mainboard
1-2
Mainboard Specifications
ProcessorSupport
-AMDSempron,Athlon64/64X2(DualCore)processorwithAM2
package
-4-pinCPUfanpinheaderwithSmartFanSpeed Control
SupportedFSB
-HyperTransport supportingspeedupto1GHz(2000MT/s)
Chipset
-Northbridge: AMDRS690T
-Southbridge:AMDSB600
Memory Support
-DDR2400/533/667/800 (4GBMax)
-2DDR2SO-DIMM slots(unbuffered)
LAN
-2PCI-EGbLANbyMarvell 88E8056
Audio
-Realtek ALC888 7.1-channelHDAcodec
-6watt amplifier
IDE
-140-pinIDEconnector
-Supports2IDEdevices
SATA
-2SATAIIportsbySB600
-Supportsstorageanddatatransfersatupto300MB/s
Expansion Slots
-1PCIslot
-1MiniPCI-Esocket

1-3
ProductOverview
Connectors
RearI/O
-1PS/2mouseport
-1PS/2keyboardport
-2COMports
-1VGA/ HDMIstackconnector
-4USBports
-5flexibleaudiojacks
-1opticalSPDIF-outjack
OnboardConnector
-2USBconnectors(4ports)
-1parallelportconnector(LPT)
-1LVDSconnector
-1TV-Outconnector
-1amplifierconnector
-1frontpanelconnector
-1SMBUSconnector
-1CPUfan connector
-1systemfanconnector
-2SATAconnectors
-1ChassisIntrusionconnector
FormFactor
-Mini-ITX(17.0cmX17.0cm)
Mounting
-4mounting holes
Environmental
OperatingTemperature
-Temperature: -10oC~70oC
-Humidity:0% ~85% RH
StorageTemperature
-Temperature: -20oC~80oC
-Humidity: 25%~90%RH

2807790 Mainboard
1-4
Block Diagram

1-5
ProductOverview
(2807790 v1.X) Mini ITXMainboard
MainboardLayout
BATT
+
Top: mouse
Bottom:
keyboard
Top:LANJack
Bottom:USB ports
Top:LANJack
Bottom:USB ports
COMPorts
Top:VGAPort
Bottom:HDMI
T:
M:
B:
Line-In/SS-Out
Line-Out
Mic
T:RS-Out
M:CS
B:SPDIFOut
-Out
JAUD1
PCI1
SATA1
JFP1 CPUFAN1
JLPT1 IDEB1
J4
ATX1
DIMM2
J1
J2
DIMM1
JPW1
SYSFAN1
JBAT1
JCASE1
SATA2
CON1
Winbond
W83627DHG
J3
AMD
RS690T
SB600
JTV1
JUSB1
JUSB2
JLDVS1
ALC888
BackpanelI/O

2807790 Mainboard
1-6
PowerConsumption
Component
CPU AMDAthlon™64 x2DualCore2G
DDR2
HDD
ODD NECDVD-MultiRecordND-4550A
Description
1024MBDDR2533 *2
Maxtor80G2807790
12Vp 12V 5V 3.3V 5VSB -12V W
AMDThermNow! Utility 4.2 0.81 3.03 1.08 0.032 0.028 79.33
ParticleFuly+VCD +Xcopy 3.07 1.01 4.66 1.07 0.039 0.02 76.226
3Dmark2005 2.81 0.84 4.27 1.06 0.04 0.042 69.352
Idle 0.82 0.81 3.09 1.17 0.024 0.017 39.195
S3 0 0 0 0 0.512 0 2.56

1-7
ProductOverview
Safety compliance &MTBF
MTBF-ReliabilityPrediction
Certification Titleofstandard
EN55022:1998+A1:2000+A2:2003 Class B Productfamilystandard
EN6100-3-2:2000 Class D Limitsforharmoniccurrent
emission
EN6100-3-3:1995+A1:2001
Limitation ofvoltage fluctuation
and flickerinlow-voltage supply
system
ImmunityEN55024:1998+A1:2001+A2:2003 Productfamilystandard
BSMI
C-Tick
FCCCFRTitle47Part15Subpart B: 2005ClassB
CISPR22: 2005
CE RFI
VCCI VCCIV-3:2004, Class B
VCCIV-4:2004, Class B
Standardnumber
FCC
AS/NZSCISPR22:2004
CNS13438 類(2006年版)
Safetycompliance
Calculation
Model
Operation
temperature(°C)
Operating
Environment
DutyCycleMTBF(hr.)
TelcordiaIssue1 35 GF,GU-Ground
Fixed,
Uncontrolled
100% 93,411
TelcordiaIssue1 55 GF,GU-Ground
Fixed,
Uncontrolled
100% 52,174

2807790 Mainboard
1-8
Board Dimension

1-9
ProductOverview
Back Panel& I/O Shield Drawing

2-1
HardwareSetup
Chapter2
HardwareSetup
Thischapterprovidesyouwiththeinformationabout
hardwaresetup procedures.Whiledoing theinstallation,
becarefulinholdingthe componentsandfollowthe
installationprocedures.Forsomecomponents, if you
install inthewrong orientation,thecomponentswill not
workproperly.
Useagrounded wriststrapbeforehandlingcomputer
components.Staticelectricitymaydamagethe
components.

2-2
2807790 Mainboard
Quick ComponentsGuide
JBAT1,
p.2-16
JUSB1~2, p.2-14
JLPT1, p.2-13
J3, p.2-16
IDEB1, p.2-10
JAUD1, p.2-12
JLVDS1,
p.2-15
J1~J2,
p.2-16
JCASE1,
p.2-11
JFP1, p.2-12
BackPanel,
p.2-8
DIMM1~2,
p.2-3
SYSFAN1, p.2-13
ATX1,
p.2-7
JTV1, p.2-14
Mini PCIE, p.2-17
PCI1, p.2-17
J4, p.2-15
CPUFAN1, p.2-13
SATA1~2,
p.2-11
JPW1,
p.2-7
CPU,
p.2-4

2-3
HardwareSetup
Memory
Installing MemoryModules
1.Thememory modulehasonlyone notchonthecenterandwill onlyfit intheright
orientation.
2.Insertthememory moduleverticallyintotheSO-DIMM slot. Thenpushit inuntilthe
goldenfingeronthememory moduleisdeeplyinserted intheSO-DIMM slot.
3.Theclipateachsideof theSO-DIMM slot willautomaticallyclose.
Important
Youcanbarelysee the golden fingerifthememory moduleisproperlyinserted
in theDIMMslot.
The mainboardprovidestwo200-pin unbufferedDDR2400/533/667/800 SO-DIMM
slotsand supportsup to4GBsystemmemory.
DIMM2
200-pin,unbuffered
DIMM1
200-pin,unbuffered
Important
Toensurethe installationsofmemoryandCPUsuccessfully,pleasenotethat
to insertthememorymodules first beforeinstallCPUand coolerset.And
pleasealwaysinsertthememorymodule intothe DIMM2first.

2-4
2807790 Mainboard
ThemainboardsupportsAMD Athlon64/64x2& Sempronprocessors.Themainboard
usesaCPUsocketcalledSocket AM2foreasy CPUinstallation.Whenyouare
installing theCPU, make sure theCPUhas aheatsinkand acooling fan
attached onthetop to preventoverheating. Ifyoudonothavethe heat sinkand
coolingfan, contactyourdealertopurchaseandinstallthembeforeturning onthe
computer.
CPU (CentralProcessing Unit)
Important
Overheating
OverheatingwillseriouslydamagetheCPUandsystem. Alwaysmakesure
thecoolingfancanwork properlytoprotectthe CPUfromoverheating. Make
surethatyou applyaneven layerofthermalpaste(orthermaltape)between
theCPUandtheheatsinktoenhanceheatdissipation.
ReplaceingtheCPU
WhilereplacingtheCPU,alwaysturnofftheATXpowersupplyorunplug the
powersupply spowercordfromthegrounded outlet firsttoensurethe safety
ofCPU.

2-5
HardwareSetup
CPUInstallation ProceduresforSocketAM2
1.Pleaseturnoff the powerand
unplug the powercordbefore
installing theCPU.
2.Pull theleversidewaysaway
fromthe socket.Makesureto
raisetheleverup toa90-de-
gree angle.
3.Lookforthegoldarrowof the
CPU.Thegoldarrow should
pointasshowninthepicture.
The CPUcanonlyfitinthecor-
rectorientation.
4.IftheCPUiscorrectlyinstalled,
the pinsshould becompletely
embeddedintothe socketand
cannotbeseen.Pleasenote
thatanyviolation of thecorrect
installation proceduresmay
causepermanentdamagesto
yourmainboard.
5.Press the CPUdown firmlyinto
thesocket andclosethe lever.
AstheCPUislikelytomovewhile
the leverisbeingclosed,al-
ways closetheleverwithyour
fingers pressing tightlyontopof
theCPUtomakesurethe CPUis
properlyand completelyembed-
dedintothe socket.
OpenLever
90 degree
Sliding
Plate
Gold arrow
Gold arrow
Gold arrow
CorrectCPU placement
Incorrect CPUplacement
O
Close
Lever
Press down
the CPU

2-6
2807790 Mainboard
Installing AMDSocketAM2CPUCooler Set
When youareinstalling theCPU, makesure theCPUhasaheatsinkand a
cooling fanattached on thetoptopreventoverheating. Ifyoudo nothavethe
heatsinkandcooling fan,contactyourdealertopurchaseand installthembefore
turning onthecomputer.
Mainboardphotosshowninthissectionarefordemonstrationofthecooler
installationforSocketAM2CPUsonly. Theappearanceofyourmainboard
mayvarydependingonthemodelyoupurchase.
Important
2.Thenpressdownthe otherend of
thecliptofastenthecooling seton
thetopoftheretentionmechanism.
LocatetheFixLeverandlift upit.
1.Position thecoolingset ontothere-
tentionmechanism.
Hookone endofthecliptohook
first.
3.Fastendown the lever. 4.AttachtheCPUFancabletotheCPU
fanconnectoronthe mainboard.
Fixed Lever

2-7
HardwareSetup
Power Supply
ATX20-Pin SystemPower Connector:ATX1
Thisconnectorallowsyoutoconnect toan ATXpowersupply.Toconnect tothe ATX
powersupply,makesurethe plugofthe powersupplyisinserted in the proper
orientationand thepinsarealigned.Thenpushdownthepowersupplyfirmlyintothe
connector.
ATX1PinDefinition
PIN SIGNAL
11 3.3V
12 -12V
13 GND
14 PS_ON
15 GND
16 GND
17 GND
18 -5V
19 5V
20 5V
PIN SIGNAL
1 3.3V
2 3.3V
3GND
45V
5GND
65V
7GND
8PW_OK
9 5V_SB
10 12V
ATX1
10
1
20
11
PIN SIGNAL
1GND
2 GND
312V
4 12V
Pin Definition
ATX12VPower Connector:JPW1
This12VpowerconnectorJPW1isused toprovide powertothe CPU.
JPW1
3
4
2
1
Important
Powersupplyof 350watts (and above)ishighlyrecommendedforsystem
stability.