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Water Loop GPU Effectiveness Degrading - Page 3

post #21 of 23
It sounds to me at least like just an odd air trapping issue. Small bubbles over the two weeks built up in the VRM section. The block was last in line so getting air from the others and the block design has a bypass that directs a lot of flow around the VRM section so its flow would be quite low. The channels leading to the VRM section would be higher than the rest of the block when laid flat in operation so air would want to gather in them.
Just right for difficult bleeding and air trapping. A few blocks seem to incorporate VRM bypass into the design now. My EK 7970 directed all flow through that section and its flow rate was fine so I have to wander at the wisdom of it.

It may never happen again though. Glad its better.
Edited by Jakusonfire - 3/12/14 at 6:16am
Kusanagi
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Kusanagi
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post #22 of 23
Thread Starter 
Quote:
Originally Posted by Jakusonfire View Post

It sounds to me at least like just an odd air trapping issue. Small bubbles over the two weeks built up in the VRM section. The block was last in line so getting air from the others and the block design has a bypass that directs a lot of flow around the VRM section so its flow would be quite low. The channels leading to the VRM section would be higher than the rest of the block when laid flat in operation so air would want to gather in them.
Just right for difficult bleeding and air trapping. A few blocks seem to incorporate VRM bypass into the design now. My EK 7970 directed all flow through that section and its flow rate was fine so I have to wander at the wisdom of it.

It may never happen again though. Glad its better.

And we have a winner! All day I watched this card's temps rise from 56C when I posted last to 66C by the time I got home from work! The other two cards remained the same temps all day, just like last time.

Well, I just carefully tilted my case forward. Much more so than last time thinking it was air. And what do you know? I heard bubbling sounds and the card's VRM temp immediately went down from 66C to 58C. My ambient is a little warmer than usual right now, so I would expect 58C up from the usual 56C.

I sure could have saved myself a lot of trouble last night had I just tilted the case forward a little more! Oh well, live and learn.

Once again, thanks to everyone that took the time to stop and give me ideas / clues. Many lessons learned, and I'm certainly wiser.
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post #23 of 23
Thanks for the laugh. Just noticed your in Baton Rouge so you can blame it on your schooling. I grew up in New Orleans and live in Lake Charles now, so I have my excuse..
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