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Black Screen after CPU upgrade

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5 replies

by marty86daluca

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I have a Dell Dimension E520 w/E6420 cpu.
I upgraded to E7500. Both have 1066 bus speed.
I restart and get a black screen. I did not upgrade fan. I did not change any drivers beforei did that.

5 replies

by ic-it

properly apply thermal paste between the CPU and the Fans heat sink?

Was the previous CPU controlled with automatic settings in the BIOS or was there some tweaks applied manually.

by jgirizarry

Make sure the new CPU is compatible with the motherboard. Also, check for bent pins. Access the BIOS and change to automatic settings under the CPU info. The fan should be the one specified for that CPU or it will overheat.

Cheers

by bldsm

I do a lot of dell maintenance and suggest you have fried the system board during the upgrade. disconnect all the power sockets to the system board except the screen and see what will operate. My bet is its new system board time.

by oh smeg

http://supportapj.dell.com/support/edocs/systems/dimE520/en/index.htm

Though it is quite possible that the M'Board in this Model doesn't support the newer CPU type and as a result doesn't work with a E7500 CPU.

Just because they have the same Socket doesn't mean that all CPU's that fit that Socket will work on that M'Board.

Dell do not list any Supported CPU's or Upgrade Options for this Model. ;)

Col

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