OCCT 3.1.0 shows HD4870/4890 design flaw - they can't handle the new GPU test !

[Tetedeiench]

Really?
So gathering the actual results and revealing the glaring bias of the OP is "stubborn and biased interventions?"
Thanks for your insight.

So like it was mentioned before, if this is a huge RV770 design flaw why is the 4850/4830 unaffected with their even "cheaper" VRMs?

The bug is happening only on 4870/4890 so far. We found 4850's to be unaffected (we even had a Crossfire of 4850 ro be "bug-free").

And we reproduced this bug on about 10 different cards, i stated that clearly in the first post, using AMD and Nvidia Processors, alot of different northbridges, and power supplies brands and such. Alot of hypothesys came live during this, and all were cut out, until the VRM one remained. Not 2. Please be constructive.

I mean, we even had a reference design underclocked running fine under 82A, bumped only the vGPU, and... well... black screen.

The 82A limit on the VRM right now is just a hypothesis. Really, it's the sole thing we can think of that could cause a crash that quick. I can't see temperature rising that quickly that will cause such a crash. If temperature was at stake, the crash wouldn't be that frank, you would see the donut with artefacts first, as usual.

Anyway, my goal is to understand what is going on. Again :

• Only 4870/4980 are affected (that's what our testing shows) at stock frequencies
• Only reference design (i.e. cards that use the reference design 3-stage VRM) are affected. That is a huge number of cards, but indeed, that is

I have to admit i'm surprised of the amount of "hate" i'm getting there. I mean, on any other board i'm going, OCCT is already pretty well known, and people know i'm not doing this for fame, or anything else (hell, OCCT has been around for 6 years now, why would i seek that just NOW ?).

Right now, i've seen RC1 news popping around everywhere (for my own discouragement - i hate people spreading betas), and people complaining that OCCT isn't compatible with ATI cards. Websites refuse to help me understand what is going on... they ignore my emails. I finally could get my hands on a french website - i do hope it'll start the chain.

Posting in the boards is the sole thing that is left for me to understand what is going on. Because i truly think my test is not at stake there, as underclocking make the cards support it.

[570091D]

I have to admit i'm surprised of the amount of "hate" i'm getting there. I mean, on any other board i'm going, OCCT is already pretty well known, and people know i'm not doing this for fame, or anything else (hell, OCCT has been around for 6 years now, why would i seek that just NOW ?).

Right now, i've seen RC1 news popping around everywhere (for my own discouragement - i hate people spreading betas), and people complaining that OCCT isn't compatible with ATI cards. Websites refuse to help me understand what is going on... they ignore my emails. I finally could get my hands on a french website - i do hope it'll start the chain.

Posting in the boards is the sole thing that is left for me to understand what is going on. Because i truly think my test is not at stake there, as underclocking make the cards support it.

well, i'll say 'thanks' for being open and honest with us.

i'm guessing that there was no way for ATI to know that there would be such a powerful graphics application available for these cards. i'm sure the pwm's are just fine for everything but this, and if that's the case, just leave the program at 2. there is no reason to ensure your card's stability under a load that no game can reproduce.