gschmieder391
1 Copper

XPS420 CPU fan revs up

I've had a Dell XPS420 for a couple of years.  Recently the cpu fan revs up a couple of times each week.  I cleared dust from the fan and heat sink.  The fan operated normally for a while, but now it revs up again.  Any thoughts?

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4 Replies
Davet50
5 Iridium

Re: XPS420 CPU fan revs up

Is it random or repeatable? Can you make it do it or does it just do it when ever. Usually is an indication of a heat issue.

 Home Built Sandy Bridge P8P67 i7 2600k @ 4.5 GHz 8gigs GSkill Ripjaws. Corsair 800D Case and AX1200 Ps X-Fi Titanium Fatal1ty pro PCIe Sound Card
Dell Studio XPS 1645  Window 10 Pro

Forum member since 2003

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gschmieder391
1 Copper

Re: XPS420 CPU fan revs up

It appears to be random.  Usually powering down and rebooting quiets the fan for a while.

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Davet50
5 Iridium

Re: XPS420 CPU fan revs up

Pick up the free program Core Temp and set it to run in your task bar to monitor your Cpu temps.

There is the possibility that the thermal paste between the heat sink and CPU is breaking down and needs to be redone

Here is a link on that procedure as

 Home Built Sandy Bridge P8P67 i7 2600k @ 4.5 GHz 8gigs GSkill Ripjaws. Corsair 800D Case and AX1200 Ps X-Fi Titanium Fatal1ty pro PCIe Sound Card
Dell Studio XPS 1645  Window 10 Pro

Forum member since 2003

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gschmieder391
1 Copper

Re: XPS420 CPU fan revs up

Sounds like a good start.  Thanks for the advice!

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