e6400 sporadic loud fan

Just got my e6400. Thanks for the help selecting it over the past few months. I'm really happy with it apart from one small issue.

It seems that occasionally the fan runs at top speed and is pretty noisy in the process. This happens even when the machine is idle. For example yesterday I was sat with nothing open on the table beside me whilst I worked on my T61p, and suddenly the fan starting running at full speed for 5mins or so. I can't see any pattern to this, but naturally if there is a problem, I'd like to get it sorted out sooner rather than later.

Any ideas?
Thanks

 

The fan shouldn't be kicking on in HIGH under light load.

A few questions-

1) Are you certain that a virus scan or other scheduled process/program isn't running when the fan speeds up?
2) The main exhaust vent is located in the middle of the left side of the case. Are you sure that there's nothing within 3-4 inches of the vent that could be reducing airflow?
3) Which BIOS version are you using?

If the fan's behavior can't be linked to some logical cause, it's probably safest to return the system to Dell. I'd insist on a new one to replace it (rather than a repair).

The other option, since you're well within the 30-day Return window, is to to return it for a refund and just re-order a new one. I'm not sure which would be the quickest remedy....

 

1. Not certain, but I removed the security/virus app trail that shipped with the system. I suppose it could have been an indexing process, windows update perhaps. Will need to investigate further.
2. Nothing blocking the vent.
3. Bios revision A11

It was a purchase from Outlet (UK). Does anyone know if I'm still covered by a 30 day return policy?

Funnily enough, the fan hasn't been on since I made the last post. I just restarted to check the BIOS info, but now need my girlfriends finger print to continue any other testing... so will have to wait till she returns from work.

Is it worth checking temperatures? What's the best app for monitoring on the e6400?

Thanks

 

Dedicated or integrated GPU?

It was identified in another thread that the fan goes to fast speed (4800rpm) when the chipset temperature reaches 50C. However, this should not happen under light usage.

You can monitor the various temperatures and fan speeds using I8KfanGUI (but it can't control the fan). HWMonitor also shows temperatures.

BIOS A12 seems to have the same fan rules as A11, but A06 may behave differently.

John

 

Why not to try undervolting first? It will make no harm.