Watercooling temp differences

Annihilation · 23 Jul 2014 at 22:02

Hi all,

I have just installed another card into my PC that is watercooled. It is the same card and the same waterblocks and is in the same loop. The cards are in parallel.

Three cards run under load at 55 degrees and then the new card I put in runs at 45 degrees. Even idle has a delta of 3-4 degrees.

I find it hard to believe that I messed up the block install on three cards or the paste has not been applied correctly etc. but I suppose it could be?

Any ideas?

Annihilation · 24 Jul 2014 at 18:56

Interesting idea, I might re-seat the blocks this weekend to be sure. Aside from that I am at a loss.

Annihilation · 26 Jul 2014 at 16:21

Yes, used MX-4 on all.

Annihilation · 26 Jul 2014 at 19:01

- They are in parallel
- Clocks and voltages are the same

I thought it was odd so I cleaned all the 3 old cards and put the blocks back on and they are now 10 degrees cooler. What on earth went wrong with those installs is beyond me.

Thanks for your input guys.

Annihilation · 26 Jul 2014 at 21:04

Yeah - It is odd, I don't know if the block was not tight enough or when i put the blocks on it slid and moved the blob of paste.

I don't have a pic, but I am using one of these: