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No boot to bios after cleaning heatsink

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#1 Mark Dunn

Mark Dunn

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Posted 01 December 2014 - 04:43 AM

After removing and replacing the heatsink and CPU I cannot boot to BIOS. Just the usual beep then nothing, no display. If I insert my second NVIDIA graphics card, it boots to a screen which says 'NV18 VGA BIOS' and then goes to a screen wth flashing cursor- no mouse or keyboard.

On disassembly the heatsink and CPU came out together without my moving the ZIF lever as it was inaccessible before I removed the CPU from the heatsink- although I reinserted it correctly, could I have damaged the CPU when I removed it?

MSI motherboard, P4 2.66GHz. 160 and 250GB drives. Award bios.

Can anyone help? Thanks.

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#2 dicke



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Posted 01 December 2014 - 03:07 PM


If you can insert and remove the CPU from the socket without releasing the ZIF level there's a good chance you are not making connections on all pins. It is also possible that a pin on the CPU has been damaged/bent

If this is the case either/both may have to be replaced before normal operation can be resumed

Keep us posted



Stay well and surf safe [stay protected]

Dick E

#3 hamluis



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Posted 02 December 2014 - 01:33 PM

You can visually check the pins...by merely looking at them.  Bent pins will be obvious since they will stand out against the straight rows otherwise seen.



#4 Mark Dunn

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Posted 02 December 2014 - 01:39 PM

Thankyou both, I managed to get the CPU fitted properly and it didn't appear to be damaged but the problem has worsened. I had been having some incipient hardware failures recently so I think they've just piled up. It's time for a new machine, this oe was old when I got it 6 years ago. Shame though.

Any clues on fitting a second display to a HP Touchsmart given to me by a friend?

Thanks again.

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