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It’s not occurring as frequently now as before the BIOS update, but still pretty annoying. UPDATE: I’m sorry to report that the BIOS update only partially fixed the fan problem. Unfortunately I didn’t write down what BIOS version with apparently defective fan management I started out with, but regardless, the most recent BIOS update from the HP website fixed the issue. But, it COMPLETELY FIXED the fan cycling problem. As a last resort, I tried a BIOS update, although HP’s BIOS update changelog didn’t mention any cooling management improvements. Someone at HP has an evil sense of humor.Īt this point I got my CPU fan mace off the shelf & started practicing.

It made the pause between the fan cycling only slightly longer. I found a “Fan Always On” setting enabled in the BIOS (which clearly wasn’t working) & tried switching it to “Disabled”. The only improvement was when the processor was under load - the fan stayed on a little longer between its spastic cycling.

Tried it plugged in & on battery … Changed power settings around … Cursed HP & threatened to exchange it yet again. I checked the System Resource monitor, no CPU or disk usage spikes. Granted it was marginally better than the power cycling issue with my first Pavillion dv6t, but this was the CPU fan equivalent of Chinese water torture. It would turn on with a loud whir, then slowly decrease speed down to near-silent, then shut off for 10 seconds, & start the whole thing over. The cooling fan would cycle on & off every ~30 seconds. HP tech support took 6 solid hours on the phone to cheerfully wade through their pre-exchange process in a futile attempt to fix an obvious hardware power problem (doing things like a full-system virus scan) … but they finally accepted it back.Īfter another few weeks, I received my shiny new HP Pavillion dv6t, take two! I happily turned it on (and it stayed on), & almost immediately I noticed the cooling fan cycling:

I recently bought a HP Pavillion dv6t laptop, only to return it after a few days - I’d press the power button to turn it on & it would cycle off & on 10-15 times before eventually deciding to stay on for good.