Quote from: NotFuzzyWarm on May 27, 2014, 04:08:24 AM

Quote from: rik_khaos on May 27, 2014, 02:44:31 AM

Quote from: NotFuzzyWarm on May 26, 2014, 09:48:31 PM

Quote from: rik_khaos on May 26, 2014, 09:34:15 PM

that is fair, I was asleep while it happened, so I didn't get the chance to see it all with my own eyes. All I know is it killed the fuck out of that board. I wish I would have copied the error cgminer was giving me.

I have a few sinks that are the same color as the sink that fell off perhaps I should remove and take a look at the thermal tape.

Aside from being copper or aluminum color doesn't really matter for the loads put on them. I suppose they could have different tape on them though, perhaps dots vs a square. (Hope not.) The anodizing on aluminum sinks is just ascetics. If ya wanna get picky, flat black is best with measurably but still marginal better radiative dissipation..

Definitely check/re-tape the chipsinks and even better find something bigger to use.
Definitely make sure there is good airflow channeled over them as well.

What I mean is they were all copper, but they changed color due to the heat of the chips, http://www.eng-tips.com/viewthread.cfm?qid=194516 looks like it;s the oxidation process taking place at diffrent levels of heat.

I can snap some pics to show you what I mean if interested.

If the copper is changing then serious trouble and probably dead chips. Max die temp is 100c and it takes more than that to make copper start changing color... 150c will start to give a bronze ish luster, around 200 serious color changes start. Good link btw.

Yeah I have three cards with at least one serious color change including the card where the sink fell off. Each of those have cards have nearly every sink with with the bronzeish color. Two cards have retained their natural copper color, but they failed to ever initialize in the first place. If I can get those two cards up with the software details at least I'll have something to work with.

Looks like maybe the issue could have been dealt with if we were given the proper soft specs to work with from the get go