Thanks everybody for replying.
I checked almost everything you guys suggested and at last I found that it was due to a BIOS's bug. After I flashed the BIOS to the latest version, everything goes OK. Thanks again!
FYI: http://www.tyan.com/support/html/b_s2466.html
TYAN Tiger MPX ( S2466N-4M ) V4.06 New features and Fixes : Fixes bios resetting during reboot issue. Fixes hang on shutdown issue when no keyboard is present.
On 2/23/06, Tod Merley todbot88@gmail.com wrote:
Hi James!
I would be doing the following:
- Making sure I am using the proper procedure to save the settings as I
leave the CMOS setup program. Some have the ability to exit without saving permitting the use of the settings one time only. I would make sure that I save and exit. I would also look at any CMOS security settings just in case.
- Reading the MB manual with specific attention concerning how the CMOS is
powered and controlled. I often find these PDF on the web if they are not in hand. [...]
-- Best regards,
James He