Asus M4A88TD-V EVO/USB3 User Manual - Page 38

Jumper - bios

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VGA configuration Single VGA/PCIe card Dual VGA/PCIe card PCI Express operating mode PCIe x16_1 x16 (Recommended for single VGA card) PCIe x16_2 N/A x16 x4 • In single VGA card mode, use first the PCIe 2.0 x16_1 slot (blue) for a PCI Express x16 graphics card to get better performance. • We recommend that you provide sufficient power when running CrossFireX™ mode. See page 2-35 for details. • Connect a chassis fan to the motherboard connector labeled CHA_FAN when using multiple graphics cards for better thermal environment. See page 2-33 for details. 2.6 Jumper 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. Chapter 2 M4A88TD-V EVO/USB3 CLRTC 12 23 Normal (Default) Clear RTC M4A88TD-V EVO/USB3 Clear RTC RAM To erase the RTC RAM 1. Turn OFF the computer and unplug the power cord. 2. Move the jumper cap from pins 1-2 (default) to pins 2-3. Keep the cap on pins 2-3 for about 5-10 seconds, then move the cap back to pins 1-2. 3. Plug the power cord and turn ON the computer. 4. Hold down the key during the boot process and enter BIOS setup to re-enter data. Except when clearing the RTC RAM, never remove the cap on CLRTC jumper default position. Removing the cap will cause system boot failure! 2-20 Chapter 2: Hardware information E5888_M4A88TD-V EVO-USB3_Content20 20 5/26/10 3:44:41 PM

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2-20
Chapter 2: Hardware information
Chapter 2
•
In single VGA card mode, use first the PCIe 2.0 x16_1 slot (blue) for a PCI Express
x16 graphics card to get better performance.
•
We recommend that you provide sufficient power when running CrossFireX° mode.
See page 2-35 for details.
•
Connect a chassis fan to the motherboard connector labeled CHA_FAN when using
multiple graphics cards for better thermal environment. See page 2-33 for details.
VGA configuration
PCI Express operating mode
PCIe x16_1
PCIe x16_2
Single VGA/PCIe card
x16 (Recommended for single
VGA card)
N/A
Dual VGA/PCIe card
x16
x4
2.6
Jumper
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.
To erase the RTC RAM
1.
Turn OFF the computer and unplug the power cord.
2.
Move the jumper cap from pins 1-2 (default) to pins 2-3. Keep the cap on pins 2-3 for
about 5–10 seconds, then move the cap back to pins 1-2.
3.
Plug the power cord and turn ON the computer.
4.
Hold down the <Del> key during the boot process and enter BIOS setup to
re-enter data.
Except when clearing the RTC RAM, never remove the cap on CLRTC jumper default
position. Removing the cap will cause system boot failure!
M4A88TD-V EVO/USB3
M4A88TD-V EVO/USB3 Clear RTC RAM
1
2
2
3
Normal
(Default)
Clear RTC
CLRTC
E5888_M4A88TD-V EVO-USB3_Content20
20
5/26/10
3:44:41 PM