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Replaced Thermal Paste Now Not Booting

I replaced the thermal paste that was on the processor and heatsink I replaced all the parts just like it was now I'm not getting anything I turn the computer on and I don't see anything no boot what should I do it was working fine but now it's not

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Pull your RAM and see if you get a POST beep when you restart your computer. You should hear three distinct beeps.

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Yes I get three beeps

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Thats good! so your logic board sounds OK (getting Power)

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I don't see how changing the paste can cause it to not work

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most likely not the thermal paste. Is this the same computer you had trouble with before Pc will not boot up

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At this point you'll need to back track your actions to see what you failed to plug in or install correctly. Did you use an ESD mat and use proper ESD protection? In the winter months the air is very dry and static is a very big problem (ESD).

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I installed everything correctly I live in Florida it's not cold right now

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Dry air is the cause not the cold in it's self.

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So what is the cause what do I do

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Sal Torre, since you are getting the right POST beep code, I would try this next :"try this:"Certain changes in BIOS settings (such as chipset timing or latency, memory timing or latency, processor clock frequency, etc.) can cause a system to no longer boot.

If you are able to enter the BIOS Setup by pressing F2, reset the BIOS to factory defaults by pressing F9. Save and exit the BIOS Setup.

If you cannot enter the BIOS Setup, clear the CMOS:

Turn off all peripheral devices connected to the computer.

Disconnect the computer’s power cord from the AC power source (wall outlet or power adapter).

Remove the computer cover.

Locate the battery on the board.

With a medium flat-bladed screwdriver, gently pry the battery free from its connector. Note the orientation of the “+” and “-” on the battery.

Wait one hour then replace the battery.

Replace the computer cover.

Plug the computer and all devices back in.

You may also need to perform a BIOS Recovery after clearing the CMOS." from here with more info about your motherboard.

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I didn't change anything in the bios but when I remove the CPU what do I do next

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Do you get anything when you try to turn it on without CPU and no RAM

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I will try tomorrow because its a little late right now ill let you guys know what happens

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If you changed the thermal paste then in most case scenarios you had to remove the heat sink correct?

when putting the Heatsink back on did you screw it in evenly criss cross pattern or if its a clipped kind. is it tilted?

That would cause the CPU to lean in the socket.

CHECK YOUR ARM TO THE CPU SOCKET TO SEE IF IT'S LIFTED UP. THAT WOULD CAUSE THE CPU THE NOT BE ENGAGED IN THE SOCKET

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Sal Torre will be eternally grateful.
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