Heat-Problems MXM

Hi @all!

I have a little problem with my new mxm card in my notebook. I have a FSC Amilo M1439G with a GF6600 which is dead now after nearly 3 years (heat problems). I have bought me a new 8600gs and everything is workung fine - for 10 minutes! then it turns off!!! First I thought my new card is also dead now, but may it is not (I can turn the notebook on again after some minutes). Do you think that it was very bad for my card, that the notebook turned off? I think that was because of heat problems again. So I have watched inside my friend and there is a simple 1mm pad on the GPU and a kind of blue paste on the CPU. I thought this is the problem so I was thinking about changing both to arctic silver (also on the GPU, just MORE arctic silver because of the gap). Was this a good idea? I didn't do it yet because: The heatpipe is getting VERY hot which seems to be a sign, that the problem is not in spreading the heatness! After some thinking I noticed, that the cooler of the heatpipe is not running!!! why?? (with my 6600 it started directly at the beginning). is because the cooler doesn't get a signal from the 8600 what he has got from the 6600? Do you know what I could do??

Thank you!!!
Fresh

ADD: After inserting my old GF6600 the cooler was working!!!

 

the heatsink/pipes need to be properly secured onto the GPU... with thermal compound.... make sure there is no gap.

then make sure that your VENTS and fans are not clogged with dust.... which would cause major overheating.

 

the vents and fans are cleared. there is no dust anymore.

but the gap is maybe a problem?! do you think I should make 2 pads between the gpu and the pipe?

like this:

_______ <- PIPE
-------- <- PAD 2
-------- <- PAD 1
^^^^^ <- GPU

is this good?
I also had this idea:

_______ <- PIPE
~~~~~ <- Arctic Silver Paste
-------- <- PAD
~~~~~ <- Arctic Silver Paste
^^^^^ <- GPU

how about this?

I was also thinking about a bios reset. Could this solve the problem?

regards
fresh

 

BIOS reset will probably not do anything.

the gap needs to be solid, not with compound.

I recommend to get some thermal pads.

 

what about arctic silver paste? Just a lot of it to fill the gap...?

 

it should be more solid than an compound to fill the gap.

The compound is just meant to be the medium between a heatink (with its thermal pad at times) to its component.

 

I would recommend having a copper spacer machined instead of using thermal pads; that's what I would do anyway.

 

You cand make a metal spacer, and that will work, however you will need arctic silver adhesive to get the metal to stick to the heatsink. Than put some compound between the metal shim and the gpu core.
Do not apply the adhesive to the gpu core, if you try to pull the metal shim off, you will pull the gpu core out with it, and ultimately bricking your gpu.

I do not think the heat is the problem. I think it is a compatibility issue. I am not sure that you can replace a 6600 with a 8600gs. They have different power constraints, and most likely the 8600GS is getting more power than it needs, causing it to generate a lot of heat.

If the copper heatpipe is warm on the graphics card, than the heat is being conducted away from the gpu. If the heatpipe is cold than you will need to replace the pad with a shim and some paste.

Good luck, man, but I think it is just an incompatible graphics card.

K-TRON

 

hi!

i also think that it is something with the compatibility because the heatpipe is getting warm (even hot after some time). after replacing the new card with the old one, the cooler runs up. inserting the new card -> no reaction.

BUT: everything else works great! windows boots up, i can install the nvidia driver and it says gf 8600m gs and everything is fine. it is only the problem with the cooler.

how can I remove this compatibility issue? how about putting the cooler-fan just instant on? i personally would have no problem with that or would this kill it? or is there a other way to get compatibility?

 

so you are saying that the fan on the 8600GS does not come on, correct?

Then their may be one of these three reasons why:
1) you might have mistakenly forgot to plug the fan wire into the board (this may or may not be a possibilty)
2) the fan which came with the card is dead.
3) the fan has a different voltage pinout that the fan on the 6600, causing the fan not to get proper voltage.

Are their wires coming out of the fan on your 8600GS graphics card?
If their are, you are in luck, when the gpu is hot, use a voltemeter to check to see if there is any voltage coming out of the wires, if their isnt, than the new gpu has a different fan pinout. If their is voltage flowing through the wires, and the fan does not spin, the fan is dead.

Do some tests, and tell us what you find, hopefully we can help you.

Have you contacted MXM-upgrade by chance?
A guy named "ice-tea" here on NBR owns it, he might be able to tell you if there are any known compatibility issues.

K-TRON