Question about eMachines W3623 PC Desktop
If the CPU heatsink (HSF) is loose, your computer should shut down to stop heat damage, this damage can happen very quickly.
If you try to boot up, it may power up for between a few seconds to a few minutes.
DO NOT try to power up if the heatsink is not fitted correctly, if you are unsure about other things plugged in correctly, you will need either a knowledgable friend to help, or a local shop.
It is impossible to give advice on what may be wrong without actually being in front of your pc to see what may be plugged in incorrectly
Posted on Jul 19, 2010
On one edge of the mother board, usually near to a corner, there's a whole load of tiny connectors, some single pin, some 2 pins. It looks like you've disconnected these.
There's no easy way, you'll have to check the user manual for the motheboard to see how these connections should be made.
If you don't have a manual, you'll have to go to the motherboard website, follow links for support and downloads for a PDF copy.
You're motherboard make and model will be printed on it somewhere, its a case of digging around.
Posted on Jul 19, 2010
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Posted on Jan 02, 2017
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Jan 19, 2013 | HP Compaq Presario SR5610F Desktop PC
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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