HelpAsNeeded
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RE: Dell System Detect: There was an issue running diagnostics

Thanks for the replies, FlobbleDiWobbleGooglyBear and Lee.

My problem isn't high speed, as though / because the processor is overtaxed. My problem is the periodic wailing sound, like the bearings are failing, that arises periodically.

I hit F12 and ran diagnostics on both the fan and the hard drive, both of which passed, so I don't trust the tests.

I had a similar issue a few years back on a different machine, thought it was the fan, so I replaced it. A couple months later, the hard drive failed -- that was a drag (I'm still looking for ideas / recommendations as to how to recover the drive, but that's another matter).

I've ordered a replacement fan ...

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