Aaeon EMB-Q77A Manual do Utilizador descarregar pdf (Página 27)

2-19

Chapter 2: Motherboard information

IMPORTANT:

• Forafullyconguredsystem,werecommendthatyouuseapowersupply

unit(PSU)thatcomplieswithATX12VSpecication2.0(orlaterversion)

and provides a minimum power of 230W.

• DO NOT forget to connect the 4-pin ATX +12V power plug. Otherwise, the

system will not have enough power.

• We recommend that you use a PSU with higher power output when

conguringasystemwithmorepower-consumingdevices.Thesystem

may become unstable or may not boot up if the power is inadequate.

2.9.2 Internal connectors

1. ATX power connectors (24-pin EATXPWR, 4-pin EATX12V)

These connectors are for ATX power supply plugs. The power supply plugs

aredesignedtottheseconnectorsinonlyoneorientation.Findtheproper

orientationandpushdownrmlyuntiltheconnectorscompletelyt.

EMB-Q77A ATX power connectors

EATXPWR

PIN 1

COM

+5VDC

-5VDC

COM

PS_ON#

COM

-12VDC

+3.3VDC

+12 VDC

+5VSB

PWR_OK

COM

+5 VDC

COM

+5 VDC

COM

+3.3VDC

EATX12V

+12V DC

COM

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Aaeon EMB-Q77A Manual do Utilizador Página 27