Cpu fan maxed on boot up

Dell Optiplex gx280 desktop
September 8, 2010 at 12:07:37
Specs: Windows XP/LINUX MINT 8, INTEL 2.8G/2G
Not really an overclocking matter...
Until recently computer would boot fine. Now it won't boot and cpu fan goes to max from startup. I'm assuming cpu is also going to max at boot? I disconnected the cpu fan wire and the boot script gave a fan error as expected. There is no boot script with fan connected. Is this just a fan problem?

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#1
September 8, 2010 at 13:31:57
"I'm assuming cpu is also going to max at boot?"

Max temperature maybe. Could it be that the heatsink somehow came loose & is no longer making good contact with the top of the CPU?


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#2
September 8, 2010 at 13:45:54
Heatsink is solid, not loose. Cold start problem rules out hot cpu (in my opinion). This started a couple of days ago. Each time I started the pc the cpu fan went ballistic while pc did not boot. After a few power up and down it booted and was fine. Now it consistantly won't boot and cpu fan goes 100%. Starting to suspect something besides hardware or environmental issues. Also, I reset the cpu battery with no positive effect. It's a dual boot partition so it's not an OS issue.

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#3
September 8, 2010 at 14:57:24
"Cold start problem rules out hot cpu"

If the heatsink isn't properly secured, the CPU will go from room temp to an excessive temp in a matter of seconds.


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