MB ASRock 939Dual-SATA2 MB AMD 3500 CPU
I installed, by mistake a memory with a frequency higher than the board recommends, this still works on another M/C but naturally not on my M/C

My PC is now dead using its original memory. I have Tried resetting the bios, no use.

What could be damaged.?
The MB
The CPU
I find it difficult to believe the memory is damaged unless the bios picked up the mistaken memory and reset to a higher frequency.

Any other suggestions

Thanks

Your issue goes beyond your choice of RAM.
The mobo needs to be serviced, i.e. repaired or replaced.

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