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

[blindbox]

I don't think any optimisation of a game would make use of all 800 shader cores, the rops, the TMU, etc all at the same time. Aka, unrealistic load.

[HiJon89]

I don't think any optimisation of a game would make use of all 800 shader cores, the rops, the TMU, etc all at the same time. Aka, unrealistic load.

The point of a stability test is to put an unrealistic load on a component Why don't people complain about running Memtest or Linpack for hours? These tests also stress specific components beyond what is to be expected under normal use. These tests are designed to put as much load on the components as possible, if you don't like that then you're rejecting the idea of a stress test as a whole so don't direct your anger at just this one person.

Another thing to think about, what would you say if a new Intel CPU couldn't Prime95 at stock speeds, that it is an unrealistic load?

How do we know that the software is giving it valid instructions without looking at the source code?

As the OP has stated multiple times already, the same cards that fail will pass the test when sufficiently underclocked, suggesting a hardware rather than a software problem.

[Solus Corvus]

As the OP has stated multiple times already, the same cards that fail will pass the test when sufficiently underclocked, suggesting a hardware rather than a software problem.

Suggesting, but by no means proving.

Assuming that there aren't any bugs in the software, testing if it is a PWM problem or a cooling problem should be fairly easy. Take a card that fails and increase it's cooling capacity.

[Toysoldier]

Suggesting, but by no means proving.

Assuming that there aren't any bugs in the software, testing if it is a PWM problem or a cooling problem should be fairly easy. Take a card that fails and increase it's cooling capacity.

I don't think that would help since water cooled cards fail too and cooling has been ruled out as the cause of the failure.

[LordEC911]

I don't think that would help since water cooled cards fail too and cooling has been ruled out as the cause of the failure.

How so?
There are members here with reference cards that are not crashing.

[MpG]

How so?
There are members here with reference cards that are not crashing.

Which begs the next question - why? Ideally, we could pop the sinks on all the cards tested, and see if there are differences in the components that correspond to pass/fail. Obviously, that's not feasible, but that doesn't mean it might not be interesting nonetheless.

That aside, there have been cards coming out lately with boosted power circuits - if the manufacturer is going to make a big deal over their non-reference boosted power circuits, aren't we allowed to at least question why there's room for improvement over the base design? It's not as though this industry doesn't have its share of incidents where a manufacturer tried to intelligently cut corners, but flubbed it.

Seriously - somebody puts a processor under liquid Helium, and we all cheer and throw in our armchair opinions. We'll discuss/argue whether a motherboard having "only" 8-phase CPU power is a "problem". But somebody writes some software that can overpower certain stock cards, and suddenly a whole bunch of people are stonewalling questions and shouting that it's not a 'realistic scenario'?

[p2501]

Seriously - somebody puts a processor under liquid Helium, and we all cheer and throw in our armchair opinions. We'll discuss/argue whether a motherboard having "only" 8-phase CPU power is a "problem". But somebody writes some software that can overpower certain stock cards, and suddenly a whole bunch of people are stonewalling questions and shouting that it's not a 'realistic scenario'?

QFT!

Many people in this thread sadly fail to see this.

[lockee]

Seriously - somebody puts a processor under liquid Helium, and we all cheer and throw in our armchair opinions. We'll discuss/argue whether a motherboard having "only" 8-phase CPU power is a "problem". But somebody writes some software that can overpower certain stock cards, and suddenly a whole bunch of people are stonewalling questions and shouting that it's not a 'realistic scenario'?

If the processor was under liquid helium, out of spec and caused a black screen I don't think anyone would declare the processor had a design flaw.

[Solus Corvus]

I don't think that would help since water cooled cards fail too and cooling has been ruled out as the cause of the failure.

I searched the thread for watercooled cards and cards with the fans at 100% but didn't find anything. I haven't finished reading the thread though, want to point out some specific posts?