User's Manual
Table Of Contents
- Contents
- Chapter 1: Product introduction
- Chapter 2: Hardware information
- Chapter 3: Powering up
- Chapter 4: BIOS setup
- 4.1 Managing and updating your BIOS
- 4.2 BIOS setup program
- 4.3 Main menu
- 4.4 Ai Tweaker menu
- 4.4.1 Ai Overclock Tuner [Auto]
- 4.4.2 CPU Ratio Setting [Auto]
- 4.4.3 FSB Strap to North Bridge [Auto]
- 4.4.4 DRAM Frequency [Auto]
- 4.4.5 DRAM Command Rate [Auto]
- 4.4.6 DRAM CMD Skew on Channel A/B [Auto]
- 4.4.7 DRAM CLK Skew on Channel A/B [Auto]
- 4.4.8 DRAM Timing Control [Auto]
- 4.4.9 DRAM Static Read Control [Auto]
- 4.4.10 DRAM Dynamic Write Control [Auto]
- 4.4.11 Ai Clock Twister [Auto]
- 4.4.12 Ai Transaction Booster [Auto]
- 4.4.13 CPU Voltage [Auto]
- 4.4.14 CPU PLL Voltage [Auto]
- 4.4.15 FSB Termination Voltage [Auto]
- 4.4.16 DRAM Voltage [Auto]
- 4.4.17 NB Voltage [Auto]
- 4.4.18 SB Voltage [Auto]
- 4.4.19 Clock Over-Charging Voltage [Auto]
- 4.4.20 Load-Line Calibration [Auto]
- 4.4.21 CPU GTL Voltage Reference [Auto]
- 4.4.22 NB GTL Voltage Reference [Auto]
- 4.4.23 CPU Spread Spectrum [Auto]
- 4.4.24 PCIE Spread Spectrum [Auto]
- 4.5 Advanced menu
- 4.6 Power menu
- 4.7 Boot menu
- 4.8 Tools menu
- 4.9 Exit menu
- Chapter 5: Software support
- Chapetr 6: ATI® CrossFire™ technology support
- Appendix: CPU features

ASUS P5E64 WS Evolution 4-5
To update the BIOS using EZ Flash 2:
1. Visit the ASUS website (www.asus.com) to download the latest BIOS le for
the motherboard.
2. Save the BIOS le to a oppy disk or a USB ash disk, then restart the
system.
4.1.3 ASUS EZ Flash 2 utility
The ASUS EZ Flash 2 feature allows you to update the BIOS without having to go
through the long process of booting from a oppy disk and using a DOS-based
utility. The EZ Flash 2 utility is built in the BIOS chip so it is accessible by pressing
<Alt> + <F2> during the Power-On Self Tests (POST).
(2) Enter BIOS setup program. Go to the Tools menu to select EZ Flash 2
and press <Enter> to enable it.
You can switch between drives by pressing <Tab> before the correct le
is found. Then press <Enter>.
3. You can launch the EZ Flash 2 by two methods.
(1) Insert the oppy disk / USB ash disk that contains the BIOS le to the
oppy disk drive or the USB port.
Press <Alt> + <F2> during POST to display the following.
• This function can support devices such as a USB ash disk or a oppy disk
with FAT 32/16 format and single partition only.
• Do not shut down or reset the system while updating the BIOS to prevent
system boot failure!
4. When the correct BIOS le is found, EZ Flash 2 performs the BIOS update
process and automatically reboots the system when done.
ASUSTek EZ Flash 2 BIOS ROM Utility V3.06
Current ROM
Update ROM
A:
C:
Note
[Enter] Select or Load [B] Backup [ESC] Exit
[Tab] Switch [Up/Down/Home/End] Move
FLASH TYPE: MXIC 25L1605A
PATH: A:\
BOARD: P5E64-WS EVOLUTION
VER: 0108
DATE: 12/18/07
BOARD: Unknown
VER: Unknown
DATE: Unknown