Asus H81M-C Computer Hardware User Manual


 
1-10
Chapter 1: Product introduction
1.5.3 PCI Express 2.0 x1 slots
This motherboard supports PCI Express x1 network cards, SCSI cards, and other cards that
comply with the PCI Express specications.
1.5.4 PCI Express x16 slot
This motherboard has a PCI Express x16 slot that supports PCI Express x16 graphic cards
complying with the PCI Express specications.
1.5.3 PCI slots
The PCI slot supports cards such as a LAN card, SCSI card, USB card, and other cards that
comply with PCI specications.
1.6 Jumpers
1. 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.
IRQ assignments for this motherboard
H81M-C
H81M-C Clear RTC RAM
1 2 2 3
Normal
(Default)
Clear RTC
CLRTC
A B C D E F G H
LAN
shared
PCIE x16_1
shared
PCIE x1_1
shared
PCIE x1_2
shared
PCIE x1_3
shared
Intel PCH SATA Controller
shared
HD Audio
shared
USB2.0_1
shared
USB2.0_2
shared
USB3.0
shared
To erase the RTC RAM:
1. Turn OFF the computer and unplug the power cord.