*** Official Radeon HD5800 Series Overclocking Thread ***

[zalbard]

in response to http://www.xtremesystems.org/forums/...&postcount=507



While I do agree with your statement from a strict technical standpoint, I can't help but feeling quite frustrated by the "don't worry" advice. As manufacturers (and I am sure other colleagues might agree with me if they read this), we spend countless hours to fine-tune every aspect of our cooling systems to lower all the critical temps to a minimum. There was a long discussion earlier in this thread where ppl agonized about the shape of the water-block flow path to see if it was optimized to cool the VRM's..

jfer didn't specifiy what type of waterblock he is using, full cover, or gpu only. If it is a full-cover block, these temps are not worth the money he spent on the product (or RMA is in order). If he is using a gpu only cooler and individual sinks, then some ventilation on the sinks wouldn't hurt.

Also, I don't know if ATI has a temperature shutdown associated with the VRM's, but I found out working on the dual board GTX295 that nVidia has. The Board would lock up in high voltage high overclocks pushing the VRM's beyond 90 C.

Alright, my bad.
I read the post, but I missed the post's title, which was "Watercooled 5850@1000/1300". So I was assuming he was on air. Hence the misunderstanding.
Since he is using liquid cooling, I have to agree with you completely.
Just one thing to add.
This post: http://www.xtremesystems.org/forums/...&postcount=398
Perhaps jfer can tell us if it's under water or not. I assume it is air judging the fan speed reported by GPU-Z. If it's the same water cooling solution as the one he used for the last run, then something is going wrong with the waterblock, or with the card, since VRM temperatures have significantly increased since then.
And one more thing, I wouldn't be surprised if this were his VRM temps for GPU-only waterblock. VRMs can easily get hot as hell. Perhaps he might want to have a look at the special VRM solution made by Thermalright.