Satellite P100-106 fan question

Hi,

I recently bought this great laptop but i have one question regarding fans that's been bugging me. This laptop have 2 fan vents (one on the left side of laptop and the other on the rear side), this rear side vent is on all the time and the left one keeps turning on and off once in a while (i suppose depending on how intensive tasks i do) so i was wondering is this normal behaviour for vents in this laptop? And btw, what's the difference between theese two vents? I'm not sure wheather this has something to do with fact that i use Vista OS

thanks in advance

 

One of the vents is for the GPU and the other one is for the CPU.
If you are using Aero on Vista, it'll use the GPU more than usual and hence the GPU fan kicks in and starts cooling.
How long have you owned the laptop.If there is too much dust in the laptop, it will also make the laptop run hotter than usual.

 

as mujtaba said its normal for the fans to kick on regularly especially the GPU fans as vista is more graphic intensive because of the **special features**

 

I bought this laptop no more than month ago so i don't think the reason why this rear vent is on is dust. I can understand that the left one (which is most probably for GPU) is running once in a while because of Aero or some other graphic demanding task but i am not sure wheather is normal for this rear vent to be constantly on? Maybe someone who owns P100 laptop and uses Vista can confirm this? Btw, thanks for your help mujtaba

 

I understand that, but is it normal for this rear vent to be constanly on without turning off? Can someone who owns P100 laptop confirm that?

 

im sure someone here on the forums own owns a P100 at the moment you could also try checking GPU and core temperatures and noting the temperatures at which the fans kicks on at and then compare them which would help youfigure out the problem if there are any

 

I 'll do that and it would really help me if someone who owns a P100 would write a few words about fan situation in their laptop?

thanks everyone

 

A bit late to the party on this thread, but the same issue has been bugging me for ages. Judging from these instructions: http://www.irisvista.com/tech/laptops/toshiba-satellite-p105/take-apart-3.htm
The one at the back is the CPU fan which is on constantly. It's actually not that loud I think. It's the one on the left which keeps turning on and off (in a loud burst). I believe that's the GPU fan (I have a 7900GS).

 

Oh and also, I've run both Vista and XP and the fan noise is roughly the same. In XP if I'm not doing anything Everest tells me GPU is around 60 degrees. In Vista (using aero) idle goes up another 10 degrees or so.

 

It's never to late to party So it's the same situation like with my toshiba, i guess it's normal behaviour then. Thank you for your response

cheers

 

Ok I have a significant finding on the issue

Just went to get my P100-J01 repaired because a speaker was crackling and the power port was half broken. While they were at it I asked them to look at the fans/heatsink because the air coming out the left was weak and temps were high even in XP. Everest Ultimate showed GPU @ 60-65 degrees and CPU @ 55-60. When I first got the P100, CPU would be around 50-55. But regardless, the fan burst has been there throughout the time I've owned it.

Anyway I have my notebook back and can't be happier. Apparently they replaced the fans and I highly suspect the heatsinks too (I could see something funny with the left heatsink before I took it in). But GPU is now @ 40-42 (!!!) and CPU @ 38-40 (!!!). That's 15-20 degrees cooler for both PLUS NO MORE FAN BLAST!! But there's a bit of a twist. I have 2 HDD's both with XP. The older one I installed the latest NVIDIA driver by Toshiba USA for P105-S921 (8.4.0.0 r3) http://www.techsupport.toshiba.com/ - temps are great!

On the newer hdd, I had put 8.4.6.3 from laptopvideo2go (with the modified INF). THIS caused the GPU fan (left) to go erratic and switch on and off (with the loud blast) at intervals unrelated to the GPU temperature (anywhere from 43-65 depending on what the fan just did). Should note that this also caused erratic CPU temperature (but not as bad 45-55). I uninstalled this NVIDIA driver from control panel, restarted and installed Toshiba 8.4.0.0 r3 and now I'm sitting on GPU 41 and CPU 40 . No more loud blast from the left fan.

I did a bit of research and one plausible reason why 'other' drivers don't work is because of the way Toshiba has customised the GPU fan and somehow integrated it into BIOS instead of following a standard NVIDIA reference design (for the cooling). Hence the NVIDIA drivers have to be customised by Toshiba to take this customised 'cooling solution' into account (unless you can live with the annoying fan burst and erratic temperatures).

Anyway I hope these findings help other owners get rid of the annoying fan burst

Cheers

 

I have installed laptop2go drivers also, obviously that might be the part of the problem. I'll uninstall it and install Toshiba's official drivers. Thanks a lot for reply

 

Toshiba tries as hard as they can to make it so you have to use their parts and their drivers. And then they are very slow coming up with new drivers. I love my Toshiba but I hate their company.

 

Exactly, their last drivers for my laptop date from 03/2007 and laptop2go drivers are updated almost few times a month and that's why i used them.