這下可怪了
有前輩可以猜看看問題出在那嗎
AOpen的人拿了一樣的板子測
竟然在S3後不會跳回cpu default clock
轉貼自AOpen Global網站：

From:Niño(2007/12/20 02:09:27)
Dear Unicorn,

..........

However, for curiosity, I started conducting series of test in here in accordance to your system configuration. Please check the results below during test and verification.

System Configuration:

Motherboard: AX4B-533 Tube
BIOS: R1.07
CPU: Intel P4 2.4GHz ,512KB, 533MHz FSB, 1.525v core voltage
Memory: X2, Apacer DDR400 PC3200 256MB
AGP: ATI Radeon 9700 Pro
IDE1: Seagate 40GB
IDE2: AOpen DVDRW drive
PSU: ATX 300GT

Considering that I configured properly my system like installing OS and its drivers. Then, initially set S3 thru Power Management in Bios then entering Frequency/Voltage control to check the initial setting 133MHz FSB then hit escape to enter main menu then save and exit the program. In Windows XP SP2 at control panel then Power Option under system standby change setting there from which I preferred. Tested the system without tampered the keyboard and mouse and it automatically goes into standby. Also, tried to standby manually by clicking Start- Shutdown – Standby without any issues on this matter as per result for almost 10 times each it won’t go back to 133MHz. Now, we ask from you, did you configure your system properly? We suggest to use the Bios R1.07 then observe the results.

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Best Regards,
Niño
AOPEN Technical Support Division
December 20, 2007


Sorry I forgot to say that I tried to change the Bus Frequency of Processor setting as follows: 133MHZ, 135MHZ, 138MHz and 140 and it won’t go back to 133MHz.

Thank you!