I have a problem with my Asus nforce2 mobo, A7N8X-DLX 1.04.

The computer will turn itself on when I switch on the power from the wall
(electrical) outlet, even though I did not press the Power button on my
casing.

There is an option in the BIOS called "AC Power Loss Restart". I already
tried all 3 options (Disabled, Enabled, Previous State), but to no avail

Tried 2 BIOS versions, 1007 and 1008 and clearing CMOS, still no go.

any suggestions?

specs:
Athlon XP mobile 2500+
512mb kingston PC3200 (hynix bt--d43)
club3d FX5800
antec truepower 430