Heat a problem?? XPS 435MT

it appears to be the southbridge that is running high temp i have 4" fan blowing in and it is now down at 49c

Hi thanks for the reply i don't think either of those temps are my GPU My GPU temp is around 30-33c the 73c apears to be my southbridge it's pretty hot to touch it wouldn't burn you but you couldn't hold your hand on it very long... air flow is pretty good although i am going to put another fan in the side of the case to add cooling..the case is cleaned out pretty often..

Hi radicaldoc,

Those CPU temps aren't too bad for that CPU. The GPU, however, is way too hot. I'm suspecting its either a lack of airflow in the case, or the GPU heatsink needs to be reseated.
When is the last time the case was cleaned out?

I am also interested in looking at solutions to bring down the TEMPIN0 temperature (if I remember it correctly).

I believe this is the Northbridge temperature and hovers around 75-80 deg. Celcius.

I keep my left side case on the 435MT open and have a large 35 Watt fan directed towards the CPU. This brings the temperature down from 75+ to around 50~. However the external fan is too noisy to use for hours together, plus it consume quite a bit of power.

So, I am looking at something less noisy and also less power hungry to cool down the system.

Any suggestions are welcome.

I am also interested in looking at solutions to bring down the TEMPIN0 temperature (if I remember it correctly). I believe this is the Northbridge temperature and hovers around 75-80 deg. Celcius. I keep my left side case on the 435MT open and have a large 35 Watt fan directed towards the CPU. This brings the temperature down from 75+ to around 50~. However the external fan is too noisy to use for hours together, plus it consume quite a bit of power. So, I am looking at something less noisy and also less power hungry to cool down the system. Any suggestions are welcome.

Have you considered removing the heat sink, cleaning both surfaces and applying a thin coat of fresh thermal paste (eg, Arctic Silver) and then reinstalling the heat sink?

Dear RoHe,

I have not done that with the 'Southbridge' chipset. I have done that with my i7 CPU a few months ago.

Of course, that did not change anything as far as TMPIN0 is concerned.

Has anyone here removed and reseated the heatsink on the Southbridge? Looking for pointers since I already have Arctics silver lying with me.

My side panel is always kept open and at idle, the TMPIN0 is at 80 deg C.

I generally use a 35 Watts external fan (the only problem is the whoosh/ noise that it generates).

It instantly brings the temperature down to 50-55 deg C.

There are no instructions in the Studio XPS 435MT manual (downloads.dell.com/.../studio-xps-435_Service Manual_en-us.pdf) to remove and reinstall the heatsink on the chipset. And I have no idea if it uses an adhesive thermal pad or just thermal paste.

So you're entirely on your own if you decide to remove the chipset heatsink. And I have no idea if replacing the thermal pad or paste will improve your excess heat issues...

If you decide to give this a try, post back and let everyone know what you did and how it affected the heat issue. :emotion-5:

The 0P041K heatsink/fan assembly will likely do a much better job than the P281K.

P281K has plastic mounting that tends to break.  BOTH use Thermal Paste.

http://www.ebay.com/itm/Dell-Optiplex-960-SMT-CPU-Heatsink-and-Fan-P041K-/120822404880

Studio XPS 9100 and XPS 9000/435T are more than a few years old.

DELL XPS 435T 730 730X 9000 9100 HEATSINK FAN & SHROUD P281K

The Heatsink/Fan is the same for both models.

Systems from 2009 or 2010 are more than 1 year from warranty end.

This is why you cant get parts from dell this system went EOL EOS  years ago. There are 2 styles

 and 

Dell Studio XPS 435MT Optiplex 960 0P041K

P281K