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applying thermo paste between H60 cooler shim and GPU on Matrix HD 7970

post #1 of 4
Thread Starter 
Hi I am about to water cool my matrix HD 7970 with a corsair H60 cooler. the original heat sink has a extended copper almost like a shim from the main part of the heatsink it extends down about .75mm from the face of the heatsink and therefore the GPU must be lower than the main plate around the GPU.

Since I am using the H60 which does not have the extended copper face like the original heatsink I will have to use a shim take up the slack, so my question is will I have to apply thermal paste to both sides of the copper shim, once to the GPU and once to the cooler copper face and what would be the best thermal paste for this application.
Does any one know or tried this before and would the coolaberatory thermal sheets work or can I use the Indigo Extreme liquid metal.
If any one has some good suggestions I am all ears.
post #2 of 4
Well, yes, i believe you do have to apply to both sides. Thermal paste? I've seen before that it doesn't really make any difference, just a few Celsius, But i would say Artic Silver 5? I've personally used that before and its alright. There is also Artic MX 4? I haven't used that before but people give it good reviews.
post #3 of 4
Quote:
Originally Posted by pigpottomus View Post

Well, yes, i believe you do have to apply to both sides. Thermal paste? I've seen before that it doesn't really make any difference, just a few Celsius, But i would say Artic Silver 5? I've personally used that before and its alright. There is also Artic MX 4? I haven't used that before but people give it good reviews.

First thermal paste I ever used was MX-3. They discontinued that a short time after re-releasing MX-2. Now they have MX-4 and MX-2. They are all great thermal pastes and work well for GPUs and CPUs. I would not use AS5 on any GPU applications unless you are REALLY REALLY careful about applying it. It is electrically conductive and if you get just a little bit on anything but the GPU you run the risk of shorting things out. Arctics MX2 and MX3 are not electrically conductive or capacitive and will not run this same risk. And in regards to that thermal paste doesnt matter is that it definatly matters. Don't use it and you run the risk of burning things up very quickly. You need thermal paste between the GPU and the shim and between the shim and the cold plate on the waterblock.
post #4 of 4
Thread Starter 
Thanks for your help guys I have seen on overclock forum most do like to use MX-4, but what about the Coollaboratory Liquid Ultra Metal pad 2-Pack CPU Thermal Pads has any one used or have info how well it works as it seems to be an easy application, or the EK Indigo Extreme would this be to hard to work with and I guess I would need 2 kits for the Indigo Extreme.
I hear some gamers saying that the Indigo Extreme is the best but seeing the video on install makes me wonder if this would not be the right paste to install with a shim.
The only thing I worry about is the after effects from the paste that are more difficult to install but want better temps.
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