setting Athlon Xp 2000+ to right clock

Spec:
Mobo:ESC-K7SEM V 1.0
CPU:Athlon XP 2000+
Ram:768 MB PC-133 Mhz
OS:Windows XP SP3

Problem:
When I want to set Cpu clock to normal speed (1.7Ghz) in bios (133/133/33),on boot I past BIOS, but not Windows boot(different BSOD),but when clock is set to (1.25Ghz) in bios (100/133/33),everything is OK.Boot normaly,log in Windows OK.Try with different PSU current-300W,tried with 400W-nothing is changed.

I think that CPU is coocked.Am I right?

Thank's in advance!!!!!

 

normal speed = 1.7GHz, bios = 133?
1.25 Ghz, bios = 100?

Is the FSB set correctly?

 

CPU/SDRAM/PCI Clock

So, I don't have to much of settings to play.

 

Flash your bios

 

The bios is flashed with the last update-1.2b.
Yesterday,I replace the CPU with the one from my frend.It's turn out that after all is the CPU,cos when I put the other one (it was XP 2600+),I was able to OC to 133/133/33 and, everything was OK.
NOW the problem is where I can purchase Athlon XP CPU?
I realy don't know.
Any suggestion ?