G53JW Vram (Video Ram) Overheating Issue!

Hello, my laptop's temp was high , and thus I decided to take it apart and replace the old paste, however, the temp was lowered, then, I was testing it when the laptop's case was half opened.Also, I kept running furmark for 15 mins, and the max temp was 85C. After that, I put the case all together, run a test, but sadly, my laptop turns off randomly, at low temps!. Since there is no vram heat sensor, I could tell that vram is overheating, I then got rid off old thermal pads ( blue cooling pads) and placed a little bit of a thermal paste ( even tho it doesnt make contact to the sink, I thought that heat exchange with the air is enough! ), and it works again, but after assembling the case, it doesnt! .

My diagnosis:

The laptop is self-aware and refuses to work.

 

So what is your question? Or you really need someone to tell you that thick pile of thermal paste which doesn't even have a contact with heat-sink instead of thermal pads is nonsense?

 

Either get some decent thermal pads or use copper shims with thermal epoxy, but under NO condition let the GPU run without making heatsink contact on die/vram and important IC's.

 

my issue is that vram is overheating, and pads arent helping, I went to many stores yesterday, and i couldnt find pads!

Can you please recommend a good brand/size/conductivity for thermo pads?

 

Those are hard to get :/, cant even find proper ones, But, A black smith should do the trick I guess, also, can i apply paste below copper shims? and should they work better than pads? btw, my laptop is working fine now, however, cant over clock it!

 

The pads were there for a reason.

When you disassembled the unit, you may have removed one of the smaller thermal pads. (there are more than 2) IIRC, the pads are .5mm thick. I have some FrozenCPU that I use here.

 

Search: phobya thermal pad - FrozenCPU.com  

Measure the clearance between the chip and the heatsink and go a little bigger.

 

search for pads in alienware forum or just google the thread on NBR

 

Hello, My laptop was dead, because, a Dc jack blew up :s, I had to fix it and do some soldering, anyways, after burning my fingers I managed to get it to work, but I found that I soldered the jack in the opposite orientation ^^"(it worked), sent it to a workshop. Anyways, I noticed that there is an old paste in between grey blocks and pads, and this is probably my issue, however, I tried to clean them but they partially torn apart!. Also, I'm not sure whether grey blocks are overheating or black rectangular ones!. At last, I'm considering buying shims.

Its hard to measure the gap's length, common tools ;ex. ruler, won't help, Chastity already had mentioned the distance .

The following picture should summarize my issue:



Thank you all for replying, and sorry for my bad English.