Dell Latitude E6440 :: Fan Runs Constantly

Mar 5, 2014

I just got a new Latitude E6440. Overall I love the system, but when it is docked / on AC power, I have noticed that I can almost constantly hear the fan. Right now my CPU is only at 6% but I can hear the fan running. Is that just normal behavior with this system? Does it just have a louder fan that runs more often? I just upgraded from an E6410 and I don't recall ever hearing the fan. 

I am running Windows 8.1 Pro, and it is a brand-new install. I ran diagnostics and did not find any issues.

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The fan on my laptop runs constantly. The noise is very annoying. I have been having this problem for 6months plus. In reading previous posts, upgrading teh BIOS seemed to resolve the problem for a while, but it is happening again now. The fan runs from the second I turn the computer on.  I am running the A02 BIOS. I just ran diagnostics and the fan test passed - speeds were 4500, 4500, 4000. current CPU temps ranged from 68-71. What else can I do?

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In the last two weeks or so, the fan on my Studio 15 (1535) has been running continuosly. Even when it's under little/no load for extended periods of time, the fan stays on at higher-than-low-speed (from the sound)?

I've had it for about four months and this wasn't an issue until very recently. I have updated the BIOS twice (A02 to A03, then A03 to A06) and wonder if the most recent update was the culprit. I skipped A05 initially, but a few days ago I re-flashed using A05 to see if that might fix the issue- no dice! I'm debating whether I should go back to A03 and see if that does the trick?

But I don't want to keep arbitrarily flashing the BIOS over and over if there's no chance of it fixing the fan issue.

Anyone else have similar issues with the fan running constantly? Any suggestions on how to fix or, at least, mitigate the problem?

FYI- I always use the laptop on a flat, hard surface (desk or wooden lap-desk) to allow proper heat dissipation. I have also tried elevating the back of the system by 1/2-inch or so to improve airflow- NADA!

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I have installed SpeedFan to keep track of the CPU temp and it seems that the fan kicks in initally when the core temps reach about 35 C, but then the fan does not switch off, even when temps drop back down to 25/26 C, which seems very cool.

On every other laptop I have used (none of which were Acers), the CPU fan only comes on now and again, as and when it is needed.

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