PCChips M810 dead after CPU overcloking

Recommended by Wim's BIOS...

Hello,
I have an PCChips socketA motherboard( M810LR with SIS 730(730s) chipset , AMIBIOS ) and CPU Duron 600 MHz. I try to set CPU's frequency from BIOS to 800 MHz (it is stupid, I know) and , after that, my system didn't boot at all. Beep code is somthing like this: 2-3 shorts beeps , 2-3 seconds pause, again and again.
I think the CPU is dead, could be something else?

Sorry for my English, and thank you in advance for sugesstions !

Have you tried to reset the cmos?
Try to pull out the cpu from the motherboard.
Pull out else the battery for half an hour.
Then if onthing get damaged you shuold be able to post.
Are you from Italy?
Bye agus

I try to reset the CMOS like this: Clear Cmos jumper and pulling out the battery (more than one hour) but nothing works.
Thanks anyway.
P.S. I am from Romania

[Denniss]

Remove power from your PSU - then press power button to unload capacitos on the Mainboard - remove Battery and shorten the battery contacts with a screwdriver .

On a old mobo I wonce had...

I had to pull the battery and the power cord and leave it overnight for it to work.