ASUS A55BM-A/USB3 User Manual

ASUS A55BM-A/USB3

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This motherboard supports PCI Express 2.0 x1 network cards, SCSI cards, and other cards 

that comply with the PCI Express specifications. 

This motherboard supports one PCI Express 3.0/2.0 x16 graphics cards that comply with the 

PCI Express specifications. 

PCIEx16_1

–

–

shared

–

–

–

–

–

PCIEx1_1

shared

–

–

–

–

–

–

–

PCI1 slot

–

–

–

–

shared

–

–

–

Realtek LAN controller

–

–

shared

–

-

–

–

–

HD audio

shared

–

–

–

–

–

–

–

SATA controller

–

–

–

shared

–

–

–

–

On Chip USB EHCI 1/2/3

–

shared

–

–

–

–

–

–

On Chip USB OHCI 1/2/3/4

–

–

shared

–

–

–

–

–

Clear RTC RAM (3-pin CLRTC)
This jumper allows you to clear the Real Time Clock (RTC) RAM in CMOS. You can 

clear the CMOS memory of date, time, and system setup parameters by erasing 

the CMOS RTC RAM data. The onboard button cell battery powers the RAM data in 

CMOS, which include system setup information such as system passwords.

A55BM-A/USB3

A55BM-A/USB3 Clear RTC RAM

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2 3

Normal

(Default)

Clear RTC

CLRTC