Specifications
Table Of Contents
- Notices
- Safety information
- About this guide
- M4A88T-M LE specifications summary
- Chapter 1
- Product introduction
- Chapter 2
- BIOS information
- 2.1 Managing and updating your BIOS
- 2.2 BIOS setup program
- 2.3 Main menu
- 2.4 Ai Tweaker menu
- 2.4.1 CPU OverClocking
- 2.4.2 CPU Ratio
- 2.4.3 DRAM Frequency
- 2.4.4 CPU/NB Frequency
- 2.4.5 HT Link Speed
- 2.4.6 GPU OverClocking
- 2.4.7 DRAM Timing Configuration
- 2.4.8 DRAM Driving Configuration
- 2.4.9 CPU & NB Voltage Mode
- 2.4.10 CPU VDDA Voltage
- 2.4.11 DRAM Voltage
- 2.4.12 HT Voltage
- 2.4.13 NB Voltage
- 2.4.14 NB 1.8V Voltage
- 2.4.15 SB Voltage
- 2.4.16 CPU Load-Line Calibration
- 2.4.17 CPU/NB Load-Line Calibration
- 2.4.18 PCI/PCIe CLK Status
- 2.5 Advanced menu
- 2.6 Power menu
- 2.7 Boot menu
- 2.8 Tools menu
- 2.9 Exit menu

1.9 Jumpers
Clear RTC RAM (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 reenter
data.
Except when clearing the RTC RAM, never remove the cap on CLRTC jumper default
position. Removing the cap will cause system boot failure!
• If the steps above do not help, remove the onboard battery and move the jumper again
to clear the CMOS RTC RAM data. After clearing the CMOS, reinstall the battery.
• You do not need to clear the RTC when the system hangs due to overclocking. For
system failure due to overclocking, use the CPU Parameter Recall (C.P.R) feature. Shut
down and reboot the system so the BIOS can automatically reset parameter settings to
default values.
ASUS M4A88T-M LE 1-19