Saturday, July 2nd 2016
Official Statement from AMD on the PCI-Express Overcurrent Issue
AMD sent us this statement in response to growing concern among our readers that the Radeon RX 480 graphics card violates PCI-Express power specification, by overdrawing power from its single 6-pin PCIe power connector and the PCI-Express slot. Combined, the total power budged of the card should be 150W, however, it was found to draw well over that power limit.
AMD has had out-of-spec power designs in the past with the Radeon R9 295X2, for example, but that card is targeted at buyers with reasonably good PSUs. The RX 480's target audience could face troubles powering the card. Below is AMD's statement on the matter. The company stated that it's working on a driver update that could cap the power at 150W. It will be interesting to see how that power-limit affects performance.
AMD has had out-of-spec power designs in the past with the Radeon R9 295X2, for example, but that card is targeted at buyers with reasonably good PSUs. The RX 480's target audience could face troubles powering the card. Below is AMD's statement on the matter. The company stated that it's working on a driver update that could cap the power at 150W. It will be interesting to see how that power-limit affects performance.
"As you know, we continuously tune our GPUs in order to maximize their performance within their given power envelopes and the speed of the memory interface, which in this case is an unprecedented 8 Gbps for GDDR5. Recently, we identified select scenarios where the tuning of some RX 480 boards was not optimal. Fortunately, we can adjust the GPU's tuning via software in order to resolve this issue. We are already testing a driver that implements a fix, and we will provide an update to the community on our progress on Tuesday (July 5, 2016)."
358 Comments on Official Statement from AMD on the PCI-Express Overcurrent Issue
Then again, not a huge issue as only really affected much older mobos?
There are already reports on reddit that this actually doesn't affect performance in measurable ways.
Because some cards seem to come with 1.3V vcore out of the box. Which is way over that what's needed to reach boost clock.
www.reddit.com/r/Amd/comments/4qupw4/super_psa_all_rx480_owners_please_attempt_to/
Maybe there is even a more elegant solution, lets wait 'til Tuesday. Haha. Or you making any kind of post... :P
on topic: this doesnt seem to be such a major problem, and i love how people have blown it way out of proportion, what do you think happens when you oc a card geniuses?
seekingalpha.com/article/3985508-amds-polaris-revealed-overhyped-disaster
That's why AMD community is the worst.
www.reddit.com/r/Amd/comments/4qfwd4/rx480_fails_pcie_specification/?sort=new Spreading BS that GTX 960 burning motherboards too.
www.pcper.com/reviews/Graphics-Cards/Power-Consumption-Concerns-Radeon-RX-480/Evaluating-ASUS-GTX-960-Strix
Bottom line, clocks may dip tiny bit due to slight power restriction imposed by this fix (only on cards that have these problems), but I'm not expecting any noticeable real world difference. Especially if we consider the fact that AMD, as time progresses, optimizes drivers and gains performance opposed to NVIDIA which seems to drop it over time...
It was a bit of a cock up, but not much bigger than NVIDIA's cocked up fan profile on GTX 1080...
They can adjust power limits for each, there should be no problems. Later AIB cards will be okay out of the box.
seriously, average sample (72% ASIC quality) gets to 1.3 GHz at 1.15 V ... and new boards are already undervolted in the bios version they ship with
MB power circuits more so a problem on cheaper boards can do up to the spec but not really anything past that. Its like an extension cord you pull well above the power it can handle, it gets hot and well you know the end. aka they gonna enforce clock limits so it don't boost to where it does now.
ontopic: Sounds like a small batch of cards got the wrong burn.
back on topic though, i think we need more info on this problem, it is an issue, but since the effects of it seem to be almost none existent i really dont understand the panic. most people here have good to really good hardware and most of us here are used to ocing, and when you oc something it will go beyond the specs anyway so..