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

[Bo_Fox]

You do know that the vrms on these refrence 4870 and 4870x2s are the same as the ones on the GTX280/260 65nm right? The 55nm versions use cheaper vrms.

Oh yeah, the volterra ones.. but why such a limitation on the volterra vrms? I think the volterra ones are more expensive only because they offer more of a digital support (tweaking via RT/bios, etc..) and the 55nm NV cards do just fine with analog VRMs. 55nm GT200 cards have a higher reliability rate than 65nm cards that are more prone to failure, and a GTX285 can eat just as much power as a GTX280. I remember reading somewhere recently that the analog VRM's are actually better than the digital ones.

W1zzard, have you yet done a Vmod on disabling the OVP for 4870/4890 cards? Anybody? I'm curious if those reference cards can handle 100A or so without any problems. It just gives some peace of mind, since there are so many older games out there--literally thousands of them--that we never know which one could actually push the card to the same black-screen crashing scenario (of which we would probably just discard as "buggy" piece of software when it's really the hardware). Also, this issue is interesting, nonetheless.

Strange how RT reports it as 40A when GPU-Z reports it as 80A... which one do you think is true?