Upgraded E6500 CPU but....

As the title states I upgraded my CPU from a P8700 to a T9800 CPU and with that upgrade I was finally able to undervolt (the P8700 was not stable if undervolted). Currently I've got my computer running cool as a cucumber, however my fans are still running at %50 and I can't seem to find a way to turn them down (I've gone through the Dell Control Point, and maybe I'm missing something). Anyway, do you guys have any suggestions?

 

Fan runs when system is plug-in, this is normal. Also, the northbrige is most likely to start the fan. Do Fn+Z to reset the fan sensor, which can help stop the fan.
In teh power option of Windows, you can try and ste the fan form Active to passive and see if it helps.

 

Thanks. I had reset the cooling from active to passive, but there was no change and Fn-z doesn't seem to do anything. I suppose it's something I'll just have to live with. Thank you for the reply though.

 

Try doing a CMOS reset by disconnecting all power sources and the CMOS battery and holding the power button for a while. I remember having a similar issue while swapping from one P8400 to another P8400, and the CMOS reset seemed to help a bit. Possibly a fluke or a long shot though...

 

Sounds as good as anything else... I'll try that later this afternoon. Thanks

 

What fan speeds are offered on the E6500? You can find you by following the instructions in this post. My E6400 now has 4 speeds, but the older BIOS versions only offered 2 speeds (plus 0). In this case the slow speed would be reported as 50% and I suspect that the GPU heat is enough to keep the fan running. Are you running the latest BIOS?

John

 

I agree with John. Other components in the system will still produce heat, regardless of the CPU.

 

Unplugged the fan turns off completely with my GPU temp hovering ~50c and more core temps ~38c. I tried the link that John posted but I was hesitant to turn off the temperature monitoring altogether and while I know that I have other heat producing components (the wifi and chipset likely being the biggest offenders in my system after the CPU and GPU) I think that this is ultimately a issue that I will not be able to solve unless Dell releases a tool to modify the fan settings (not likely I think after the heating issues that the E6500 had early on). I guess all in all it's not a huge deal, the noise isn't that bad and as I said it goes off when unplugged so I still get the battery savings that way.

meh