TableofContent
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1.FunctionDescription
ThisMicroATXpowersupplyisdesignedforpersonalcomputer.Therearefive
DCoutputs:+5V,+12V,-12V,+3.3V+5V,anditprovidespowertoall
computersystemsandperipheralswithmaximumprotection.
Herearesomeofthekeyfeatures:
＆
SB
S-ATAready
FullysupportsallIntel&AMDsystemdemands
20-24Pin/4-8Pinadatorsavailableforboth20pinand24pin
motherboards
Tube-tidedesigntotidywires
Allkindsofprotectioncircuits(OVP/OPP/SCP)
Anti-corrosivenickelplatedchassis
Itisrathersimpletoinstallthispowersupplytoyourpreciouscomputer
tower.Followthestepsbelowtofinishthesetup.
Step1:Openthecomputertowercover;putthepowersupplyintothe
correspondinglocationofthetower,andthenuserightscrewstofixthe
powersupplytotower.
Step2:PuttheMainPowerConnector,ATX12VConnector,S-ATAConnector,
PeripheralConnectorsandFloppyConnectorstothecorrespondingmale
connectorsofmain-board,peripheraldevices(i.e.HDD,CDROMetc.)
andfloppydriversrespectively.Whenyouconnecttheconnectors,please
payattentiontotheorientationofthembecauseofthedifferentholesizes.
Findtheproperorientationandpushdownfirmlymakingsurethatthe
pinsarealigned.
2.HowtoSetup
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3.Specifications
3.1InputRequirements
Thepowersupplyshalloperateasbelow:
230V(200Vmin.-264Vmax.),4A,50Hz
115V(100Vmin.-132Vmax.),8A,60Hz
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3.2DCOutput
Powerdistributionconfiguration:
P/N
DCO/PLoad
Max.300W
+3.3V
+5V
+12V
-12V
+5VSB
22A
25A
16A
0.3A
2.0A
CM-300
Model AT-285SFX
3.3Protection
Thepowersupplyitselfisdesignedwithshortcircuit,overvoltageandover
loadprotectionfunctionsdescribedasbelow:
3.3.1ShortCircuitProtection
3.3.2NoLoadOperation
AshortcircuitonanyDCoutputwillcausethepowertolatch.Thepower
supplywillwithstandacontinuousshortcircuittotheoutputwithoutdamage
oroverseerstotheunit.The+5Vcanbeshortedindefinitelyandwillrecover
automaticallywhentheshortisremoved.
NohazardousconditionsordamagetothesupplywilloccurwithalloftheDC
outputconnectorsdisconnectedfromtheload.
SB
+3.3V&+5Vmax.130W;+3.3V,+5V&+12Vmax.287W.
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3.3.3OverLoadProtection
3.4PhysicalEnvironment
OperationConditions
Whenthetotalloadexceed130%~160%ofthemaximumoutputcurrent,the
powersupplyshallbelatchedintothestateofshutdown.
Thepowersupplyshallbecapableofcontinuousoperationandmeetall
electricalspecificationwithoutneedforadjustmentwhensubjectedtothe
followingenviron-mentalconditions:
Temp.VsLoadCondition Humidity
Operation
Storage
-20C~80C
10%~90%RH
5%~90%RH
Nodegradationofthepowersupplyshalloccurduringshippingorstorageatthe
specifiedcondition.
Ourpowersupplyhasbeencertifiedtocomplywithmulti-nationalSafetyand
EMI.
--UL,CUL,CSA,TUV,FCC
4.1Donotopenthetopcoverofthepowersupplycase.
3.5RegulatoryCompliance
Caution:Unauthorizedpersonnelshouldnotdothistoavoidelectrical
shock!
4.Precaution
0~30C@FullLoad
-20C~80C@90%RatedLoad
-20C~80C@80@RatedLoad
4.2Pleasekeepthepowersupplyfromhumidity.
Ifpowersupplycannotworkproperly,beforesendforrepair,pleasecheckthe
followingitems:
5.1Doespowercordindeedplugintoelectricaloutlet?
5.SimpleMaintenance
5.2DoesInputVoltagesetinpowersupplycorrespondtothemainsourceinyour
environment?
5.3Pleasechecktheoutputconnectorsplugginginproperdirectionandconnecting
firmly.
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5.4Pleaseturnoffthepowerandturnitonforseveraltimes,andtheintervalmust
beatleast5seconds.
5.5Havingcheckedaboveitems,ifthepowersupplystilldoesnotfunction,please
senditbacktoyourretailerordistributorforrepair.
PowerConnector/cableadator
6.MechanicalDiagram
SerialATA
Connector
+3.3VDC
COM
+5VDC
+12VDC
+3.3VDC
+3.3VDC
COM
COM
+5VDC
+5VDC
COM
COM
COM
+12VDC
+12VDC
Female24Pin
Female8Pin
Male20Pin
Male4Pin
100720#BLACK
100720#YELLOW
100720#ORANGE
100720#YELLOW
100718#RED
100718#RED
100720#YELLOW
100718#PURPLE
100718#GRAY
100718#BLACK
100718#BLACK
100718#BLACK
100718#ORANGE
100718#ORANGE
100720#BLACK
100720#RED
100718#RED
100720#ORANGE
100718#BLUE
100718#BLACK
100718#GREEN
100718#BLACK
100718#BLACK
100718#BLACK
100718#WHITE
100720#RED
1
8
4
5
1
12
24
13
100720#YELLOW
100720#YELLOW
100720#YELLOW
100720#BLACK
100720#BLACK
100720#BLACK
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