Question about gpu waterblock paste or pads?

[In need]

Hi all
Quick question, i have a koolance waterblock for my 690 but thge pads i have are a little big i think as pcb 1 is reading 40 degrees and pcb 2 is reading 70 degrees.

Can i take these 1mm pads away and just use thermal paste like EK thermal paste?

Whaty about placing a pad over the gpu chip ityself to help contact between the block and gpu?

 

[Nasher]

I usually just use a single line of paste in the middle of the chip. Then when you press the block on it spreads out evenly, you don't need a lot of it for it to work.

Pads usually have glue on them and can be hard to remove. They are usually best for sticking ramsinks etc

 

[In need]

Ok thanks....Some of the vrm's on the gpu.....is it ok to put paste on these instead of pads....this is the question that im asking....?
not the main chip but the vrm's?

 

[Nasher]

If it's a full cover block then you can put paste on the vrms. If your using a universal block, which only covers the GPU chip itself then you will need to stick ramsinks to each vrm chip (which are usually self sticking).

 

[Uncle Petey]

You need to use the correct thickness thermal pads on everything except the core with that block.

If you use thermal paste on the vram/vrm's, the block will likely not make contact and your temps will be a LOT worse. Look up the manual pdf.

Example:

I have Ek blocks on two 7970's and a 7990. They use a combination of 0.5mm and 1mm pads for vram/vram's.
I also have an Aquacomputer block on a 2nd 7990. This only uses pads on the vrm's.

DO NOT use a pad on the main chip!