8800M GTS Overheating

I recently put in a T8300 in my P-6860fx, and when I removed the heatsink I also removed the tape which was on the GPU, and replaced it with AS5. I just tried playing CoD4, and my laptop shut itself down 20 mins into the game. The GPU had jumped to 85-90 c temp...
Could it be because I removed the tape, or is it something else?

 

OOooooooh joy, that tape was all that was keeping contact, the AS5 doesn't connect the Chipset to the heatsink, because of a gap...

 

yeah that was the chipset, to get to the gpu you'd have to open up the laptop. you should have just left it, do you still have it? to put back.

 

Is that strip, known as thermal tape, or? I think Ive lost it.. :S :S :S

 

Or does anyone know where it can be bought? The name of it?

 

Anyone, please?

 

I believe its referred to as thermal pad or thermal tape. Best bet would be a local computer store, not a retail store but a REAL computer store. Good luck.

 

i would suggest going on ebay and searching for thermal pads or stopping by a home and pop computer store. I had the same experience. I ended up securing some from China via Ebay and also (used) pad from a computer repair store in my neighborhood

i used a .5mm one here is a link:
http://cgi.ebay.com/ATI-Silencer-13...1274685QQcmdZViewItem?_trksid=p3286.m20.l1116

i wasn't sure what thickness to use...however the .5mm seems to be good fit. keeps the temps down.

 

Thank you so much everyone! - Ill rep you all.

Does anyone know the exact thickness of the pad?

 

that's not your gpu over heating....it's your northbridge if im not mistaken.....

 

Its been mentioned already johnkss, but thanks though

 

guess your reading the wrong thread. it's called the northbridge and not gpu.
your welcome.

 

Hehe, 2-3 people already mentioned that its the chipset.. Besides, thats not what I was asking for Appreciate you trying to help.

 

wow, guess you'll take care next time not to over heat your system huh?

oh yeah, now i see where they said chipset.. thanks for the heads up and i hope that works out for you.

 

This might come as a surprise - I wasnt intentionally trying to overheat my system.. I removed the thermal pad because it got all twisted when I removed the heatsink.
Take care.

If someone knows the thickness of the pad, Id be in huge debt to them!

 

ok, you got me... thought we were throwing not so witty reply's back and forth.

1:so how does the pad get twisted? i've taken that apart 5 times already and still have the same one.
2: sure i know the thickness
http://cgi.ebay.com/Thermal-Pad-For...39:1|66:2|65:12|240:1318&_trksid=p3286.c0.m14

 

Thanks a bunch John

Somehow it was stuck to the heatsink, and when I pulled it off it tore apart looking completely deformed.. Maybe I could have put it back on, but Im sure it wouldnt be anyway near as good as before. So I figured I might aswell throw some AS5 on which I thought would work even better

Guess not!

 

I removed the thermal pad and replaced it with AS Ceramique and it works fine. I didn't intend to remove the thermal pad but it pulled itself off and ripped when I removed the heatsink. I just made sure that I put enough ASC to make good contact with the heatsink.

To do this you need to put enough ASC on the chipset to cover and then screw the heatsink in place. Unscrew the heatsink and check to see if the thermal grease is making full contact. You should have a nice rectangular patch. Then you can put it back together and test the system.

Anyway, I would only recommend this as a temporary solution and only with Artic Silver Ceramique which is not electrically conductive.

You can find the tape you're looking for as frag tape, thermal tape, or thermal pads. It looks like a gap of 0.5 mm or so.

 

Ill try doing that then I have some more AS5 stashed away somewhere. Would you say it works almost as well as with the thermal pads?

 

Actually he said NOT to use AS5 due to its electrical conductivity. I only ever use the ceremique due to that fact, and 1-2 degrees difference doesnt hurt my feelings that much.

Honestly...just go get the correct item for the job. Sometimes people can do something, but its not a guarentee that you'll be sucessful at it as well. And why risk permenant damage to your notebook?

 

Oh, I misunderstood his post then... Kamin your absolutely right - its a matter of laziness.. But why risk damaging the laptop? Ill go buy the thermal pad immidiately.

 

It may work better depending on the thermal conductivity of each media (pad vs. grease) taking account thickness. Is it likely to give you any performance benefit? I don't think so. You would be fine sticking to a thermal pad for your northbridge and it would be safer.

Anyway, my ACPI temps (the best thing I have to measure northbrige temps) peak at 57°C and 60°C respectively under heavy load. I don't even remember what they ran stock so that info isn't really helpful. BTW, it's most likely that it was a high ACPI temp that was responsible for shutting down your laptop.

 

Mine jumped to 94 last night playing CoD4, so I need to do something fast... Until then - no gaming
Just ordered the pads... Cant wait to put it in

 

I used aluminum foil between the northbridge and the heatsink. make sure it doesnt touch anything but the heatsink though

 

Is that a good solution? Do you still have the foil in there?

 

yes I do. it will pass you by until you can get a thermal pad. It is still very hot but it cools it down quite a bit. My CPU is a hell of alot hotter then yours so it should work good for you until u can get a thermal pad.

 

I think I might have squished that pad when i was wrestling with my stripped screw what kind of temps do you guys get in the acpi thingy. I idle at 44c and 54c.

 

Idle 41°C, 45°C

 

same here.

 

42. 46 llllllllll

 

How much tin foil did you use? How thick did you fold it? I folded mine twice - it did a little bit for the temp, but not a whole bunch

 

i actualyl used multiple pieces, there needs to be enough contact between the heatsink and the chip so that there is good heat transfer. dont use to much or it will not transfer as well.

 

Ok, I have followed the whole "northbridge pad" scenario, with much interest, as I was one of those who removed the northbridge pad and put thermal goo in it's place. Specifically the Dynex AS5 clone. I have not had one bit of trouble out of mine. Now, I know everyone is going to say "Well there's only one Dook", and such, but I'm honestly no different than anyone else. We have the same machines and generally use the same technique. I, for the life of me, cannot understand why others are having heat issues. The only real difference, is I used the Dynex brand goo and others use the genuine AS5. Maybe the Dynex stuff is thicker?? All I know is, it doesn't make any sense.

 

if it say "hardens" this would explain it, cause it would fill the gap.

 

Yea. That's definitely a possibility.