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About Mike
Expertise
Areas of expertise: PC Hardware, Peripherals, Barcode Scanners, Printers, and Applications, Networking, Microsoft Applications. I am good at researching issues and have a lot of contacts in the IT industry. So, if I can't directly answer a question I can likely find the answer. Areas I won't be much help in: Apple Computers, Linux, older Networking technologies like Token Ring, or Thick/Thinnet.

Experience
I'm currently a Network Administrator for a contract circuit board manufacturer in Oregon, USA. I've been working on PCs from a hobby standpoint for better than 25 years. I've been doing it professionally for 4 years.

Education/Credentials
A+ Certification, Network + Certification, MCP, MCDST, MCSA (in process)

 
   

You are here:  Experts > Computing/Technology > Focus on PC Support > PC hardware--CPU & Motherboard & RAM > CPU cooling fan

PC hardware--CPU & Motherboard & RAM - CPU cooling fan


Expert: Mike - 10/29/2009

Question
Hi..am using a home built computer with XP.  Recently the CPU fan started making noise.  Today, I opened the case, removed the fan and heatsink from the board, cleaned the fan up and reinstalled them.  Now, the computer starts but only runs about 10 seconds before it shuts off.  How do I correct my blunder???

Answer
The processor is overheating.

Chances are you removed too much of the thermal paste that goes on the processor to help it contact the heatsink properly.

Thermal compound is a heat conductive paste, usually comes in small syringes, and you can get it at most electronics stores or possibly hardware stores. They also make small, silicone 'squares' that peel and stick onto the bottom of the heatsink that do the same thing.

Before re-applying the heatsink it is important to spread a thin layer of thermal compound over the entire surface of the processor. Then evenly place the heatsink straight down onto the processor and clamp it back down.

Here's a YouTube video that goes over how to do what I'm describing.

http://www.youtube.com/watch?v=4OB1hxxKdec

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