Question about Compaq Presario 5000 PC Desktop
I have a Compaq Presario about 3 yrs old. It was stored in a closet for about two months and when I retrieved it to set it up, I could hear a rattle inside. I removed the cover and saw that the heat sink had fallen off the processor. Closer examination revealed the sink was held on wth a spring lever, hooked on the ends and the hooks looped through a pair of small hoops on the motherboard. The hoops approx 1/4'' wide resemble a minature croquet hoop, and one of these had pulled from the motherboard allowing the heat sink to fall. There is also some dry residue from some sort of adheisive or thermal conductive compound on both surfaces of the sink and processor. Is there a product I can purchase to repair this. I have Artic Silver 5, but it has no adheisive qualities, and I belive I am in need of something like an epoxy or superglue.
Go to your local Staple,Radio Shack or Best Buy and get a new heat sink and fan assembly, if you are lucky it will thread through the motherboard so you can reset it onto the processor chip. DO NOT PUT SUPERGLUE ON THE PROCESSOR.
AND DO NOT RUN COMPUTER WITHOUT HEAT SINK AND FAN IN PLACE OR ELSE>
Posted on Dec 23, 2008
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Posted on Jan 02, 2017
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WARNING: Before you start troubleshooting remember that you are dealing with electricity that can KILL.
The "CPU" or central processing unit, otherwise known simply as "the processor," is the primary "brain" of the computer.
Processors are very finely engineered components that are not repairable.
But replacing a failed processor is an option for the owner of any model Compaq Presario desktop computer.
Just check with HP/Compaq for the correct size and speed of processor for your motherboard before purchasing a replacement.
Turn off the computer and disconnect all cables.
Remove the cover.
Lay the computer down flat.
If there is a plastic hood covering an exhaust fan, remove it by pressing in on the indicated release tabs.
Examine the processor assembly.
The processor is a square chip that is covered by a metal heat sink with fins.
A fan will often be mounted on top of the heat sink; unplug its connection to the motherboard.
Two clips usually secure the heat sink assembly to the top of the processor.
Gently press down and slightly away on the flat end of a clip to release it.
Avoid using a screwdriver to release a clip a slip could scratch the motherboard.
Release the clips and gently remove the assembly.
The heat sink should separate, leaving the processor behind in the chip holder.
Clean the bottom of the heat sink.
Use a paper towel and a dab of solvent cleaner to remove the old thermal paste.
Set the clean heat sink aside.
Lift up the lever to unlock the old processor and remove it from the pin mount.
Insert the new processor chip.
Align the pins on the processor to the "cut off corner" or dot on the pin mount.
The processor should drop into the pin holes easily.
If the processor won't drop in easily, check the pin alignment.
Once the processor is inserted correctly, pull down the lever to lock in the chip.
Apply thermal paste to the bottom of the heat sink.
Apply enough paste to cover the area of the small gray rectangle on top of the processor.
Apply the paste with a spreader made from a piece of flexible plastic.
Spread the paste evenly to a thickness of two sheets of paper.
Check the heat sink mounting alignment and lower the heat sink onto the top of the processor.
Reinstall the mounting clips.
Reattach the heat sink fan to the motherboard if necessary.
Plug in the computer and monitor and boot.
If the machine won't boot or it emits warning "beeps," unplug the power and monitor, and troubleshoot your work until the computer boots successfully.
Shut down again and replace the exhaust fan hood.
Close up the computer and reboot.
Hope this helps
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