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Polaris Bios Editing ( RX5xx / RX4xx ) - Page 67

post #661 of 3419
Any workaround to pass that power limit?
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post #662 of 3419
Raising the power limit through MSI Afterburner works, but i thought it would come with a higher out of the box Max. Power Limit.
It doesn't bother me since i have undervolted the card and it doesn't reach the 145W anymore and even if it did, it has the power limit slider in MSI Afterburner to give it enough room space.

EDIT: I can also put a higher Max. Power Limit through vBios editing but i don't know if it's worth it.
post #663 of 3419
Quote:
Originally Posted by M3gNa View Post

Has anyone has a Sapphire RX480 Nitro+ OC 4GB here?

I'm dealing with something weird. Benching the card with 3DMark i can see that it throttles a bit when it reaches 145W power draw. Isn't this card supposed to come with a higher Max. Power Limit? I have checked the bios with Polaris Bios Editor and it's shows the Max. Power Limit set to 145W but i thought the Nitro series would come with a higher Max. Power Limit?

That 145W power limit is higher than on the reference card, where it is only 110W (german list here). And this is the standard limit that you can rise with WattMan. This limit only applies to the GPU and does not include VRM losses, memory and fan power. The reference card consumes about 165W through slot and 6-pin connector combined. Extrapolating from your 145W GPU limit, the whole card already consumes more than 200W. Most AIB cards have quite high stock voltages (some even add voltage offset above 1.15V), thats why they also throttle besides their higher power limit. But you already figured that out and did the right thing (undervolting).
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i5 3470 + RX 480
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post #664 of 3419
Quote:
Originally Posted by BromoL View Post

If you backed up your original bios, use this one. Or did you overwrite it with your modifications? Compare your version to this one. At the bottom it says "MSI, RX 480 Gaming X 4gb, Radeon (TM) RX 480 Graphics, (1303 / 1750)". If a diff shows only your timing modifications, this is the right one.

Thanks a million BromoL,

I have managed to flash back the suggested BIOS which you have pointed out to me and right now the card is working well.

Really saved my butt on that failed episode of bricked RX 480.

Kudos and thank you very much! thumb.gif
post #665 of 3419
all 4gb 480 cards can flashed to 8gb?
post #666 of 3419
They can be flashed but not all will be working or look good on photos.
post #667 of 3419
I have 2 x Sapphire RX 480 Nitro+ OC 8GB, and one of them gives 3-4 memory errors per day (ethereum mining workload), at stock memory clocks. I even have the feeling that the error rate is lower at 2050 MHz, than at 2000.

The other goes happily to 2250 without errors for days, but with a catch: in must be put at 100% load at stock clocks, and then, manually set in wattman, to 2250 MHz. After 24-48 hours, suddenly, it starts giving errors, in the low hundreds per hour, until the GPU returns to idle, after that, it keeps giving zero errors at 2250 for days again.

Is it normal in this scenario to get errors at stock, even if they are a very small amount? Can a modded bios loose memory timings enough to get zero errors and still be gaining performance? What modification is needed in memory timings? Thanks.
post #668 of 3419
so i got my gpu changed as i bought from my local market place shop, my gpu didnt give me display through 16x slot and i have a second gen i5 2500 processor, so i went to the shop to show them the issue, they tried the gpu in their own system and through a series of testing it, we found that the gpu didnt work on intel second gen processors, once we gave it a third gen processor it started being detected through a 16x slot. That was a weird issue, the shopkeeper is a friend of mine so he replaced my card with a new one, and i got home and changed my bios to 8gb one and im gud to go ^_^
post #669 of 3419
Had the same issue, for me it was that when flashing the new bios, it was by default set to Auto for PCI-E Gen in MB Bios, I had to set it manually to GEN 3.
With Auto, there would be no signal at all and the Bios failed with some GPU error.
After manually setting it to Gen 3, pouf, no more issues.
post #670 of 3419
Quote:
Originally Posted by afaque View Post

ok so i flashed the 1290 core xfx bios and my gpu is working with 8gb, thankyou for all you guys's efforts. Very much appreciate this. But i wanna ask about another issue. I got the card just yesterday and i got it after selling my 290 . my 290 was working on my first pcie slot on my mobo and i came home with rx 480 put in on the first pcie and i get no display, i go to intel gpu and check in device manager that if i have a gpu detected. But no there is no gpu detected, then i try putting in the gpu on the other pcie slot to make sure that its a gpu issue but gpu booted up just fine and gives display, since then ive been running the gpu on second pcie slot which is 4x gen 2. and i know that there is gonna be a performance hit in games due to that. Do any of you guys know that what issue is that? And can anyone help me with this frown.gif

Had the same issue, for me it was that when flashing the new bios, it was by default set to Auto for PCI-E Gen in MB Bios, I had to set it manually to GEN 3.
With Auto, there would be no signal at all and the Bios failed with some GPU error.
After manually setting it to Gen 3, pouf, no more issues.
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