hi all. I just pulled my cpu intending to replace it, new one did not fit so i put old one back in. now it wont boot up. just black screen. nothing. any help would be apreciated. thx
hlflyer

Hi there honeylakeflyer

Welcome to CompuForums! It's great that you have chosen to become a valued member of our community.

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It could be possible that you've fried your CPU and will need to replace it - did you follow the standard procedures for dealing with ESD [electrostatic discharge]? Your CPU is the most delicate and sensitive component of your computer and should be handled with care. Secondly - was the replacement entirely compatible with your socket type? If it is, check you are inserting it the right way. The model number of your motherboard/computer and the new CPU would be helpful. However, I doubt that the old one will be usable now.

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Ash
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As Admin wrote below, the CPU may NOT be properly seated -- reamove the CPU and reinsert it (carefully). This is a common problem with Slot-1 CPU's.

Also, inspect the gold leads (pins) to insure none are bent, if the CPU is a ZIF socket.

If all else fails, take the PC to a local dealer and have it diagnosed.