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[Official] AMD/ATI GPU Mod Club - AKA "The Red Mod" - Page 99

post #981 of 3006
your block are not enough against the gpu or your pump is not plugged but if they failed on air you should have rma them immediately
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post #982 of 3006
Same thing I did. The 7970's have a small die surrounded my a larger metal plate. I do not know if that plate is part of the chip or just there for protection (an somebody help with that?)

Anyhow, it is preventing your cooler from contacting the die. I tried to make a "make shift" shim, but it did not work. Without DIRECT contact to that little 1 x 1 square, my temps went from 30-90 in about 5 seconds, just long enough for me to yank the plug out of the wall...


With an effective shim people have been getting excellent temperatures.
post #983 of 3006
Quote:
Originally Posted by Ashuiegi View Post

your block are not enough against the gpu or your pump is not plugged but if they failed on air you should have rma them immediately

Quote:
Originally Posted by caprirs302 View Post

Same thing I did. The 7970's have a small die surrounded my a larger metal plate. I do not know if that plate is part of the chip or just there for protection (an somebody help with that?)

Anyhow, it is preventing your cooler from contacting the die. I tried to make a "make shift" shim, but it did not work. Without DIRECT contact to that little 1 x 1 square, my temps went from 30-90 in about 5 seconds, just long enough for me to yank the plug out of the wall...


With an effective shim people have been getting excellent temperatures.

@caprirs302
I was using copper shims from Dwood.

I'm returning these gpus due to overheating/artifacting, but I'd really like to try the mod again when the next two arrive tomorrow. I have a question about the shims that I got from Dwood. Should it go Core -> Thermal paste -> Shim -> Thermal paste -> Kuhler, or do I not need any thermal paste between the core and the shim? Also, what holes on the retention brackets should I be using? It seems like none of them really line up perfectly, but the inner ones were probably closest.
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post #984 of 3006
Yep, waiting for those shims. I will post the temps when I get everything hooked up!
post #985 of 3006
Please by all means point it out if I'm in the wrong thread, but seeing as how I'm trying to cool my HD 7870 by replacing the stock TIM, I'm in the right place to ask this.

Took my 7870 Double D GPU apart to hopefully use my CLP on the die as I did on my CPU earlier this week.

But ran into this little problem:



As marked in the red section, I sanded down a corner that doesn't make contact, and it doesn't seem like copper started to show through so this leads me to believe the block is aluminum frown.gif

Anyone else can confirm this? Because if this is true, then I'm stuck using just normal paste mad.gif
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post #986 of 3006
yea its ali with copper heat plates going through. still doesn't stop you from using a diff paste though

sturdius
its the inside ones you are needing to use buddy.
you need to tim shim tim cooler to get proper heat transfer
and when I did mine I used 4 extra washers to hold the screws in place on the outer holes as the screws kept popping out with the washers gains the cooler with the screws through them they couldn't move then
Edited by richie_2010 - 4/1/13 at 2:51am
post #987 of 3006
Hello all,

I modded my gtx 580's beautifully last week, and I'm trying to help a friend mod his Sapphire HD 7870 XT's.

Does anyone have experience with these? e.g. whether or not they need a shim or some other extra steps?

Thanks!
post #988 of 3006
Quote:
Originally Posted by richie_2010 View Post

yea its ali with copper heat plates going through. still doesn't stop you from using a diff paste though

sturdius
its the inside ones you are needing to use buddy.
you need to tim shim tim cooler to get proper heat transfer
and when I did mine I used 4 extra washers to hold the screws in place on the outer holes as the screws kept popping out with the washers gains the cooler with the screws through them they couldn't move then

Noooooooo frown.gif I guess I wont be able to drop my GPUs temps all that much since I can't use CLP on aluminum for obvious reasons.

Thanks for the confirmation. Now that I know what it takes to drop temps on GPUs I'll definitely be making sure my next graphics card(s) have a non-aluminum cooling block surface.
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post #989 of 3006
Y don't you get a clc and mod your card, any paste and reseat will give you better temps over stock
post #990 of 3006
Quote:
Originally Posted by richie_2010 View Post

Y don't you get a clc and mod your card, any paste and reseat will give you better temps over stock

Still new to terminology, "clc" ? And yes, since it is aluminum I am still going to replace the TIM with new paste to at least see a drop of a couple degrees.
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Storm Trooper
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