I am testing a "new to me" used Sapphire Nitro+ 8GB RX 580 GPU (PN 299-1E366-001SA from SN label). I have attached the GPU-Z settings for both bios positions. I would like to flash the factory bios so that it is 1340 and 1411 clock speeds (or whatever was originally selectable) are restored.
<pics lost in the multiple edits/merges>
It looks like this is the only 1340 file for exact Hynix memory type for non-special Nitro+: https://www.techpowerup.com/vgabios/192068/sapphire-rx580-8192-170323-1
For 1411, there were two matches for the exact Hynix memory type:
https://www.techpowerup.com/vgabios/191898/sapphire-rx580-8192-170323
https://www.techpowerup.com/vgabios/191262/sapphire-rx580-8192-170320
Instructions were clear enough so I flashed the 1340 bios. Nothing changed. Card still running at 1150 max on FurMark stress test. One number shows 1340 and one shows 1150. Not sure why both GPU Clock and Default clock are not both 1340. I flashed again and rebooted again but no change. (Later edit - after replacing the card back into the PC, the new firmware kicked in and it matches the other card below now. No, I did not confuse the cards. )
<pic lost>
So then I flipped the bios switch and updated the 1411 and got the expected change on the clock but noticed the memory was not clocked high. There are no in the "non-special" Nitro+ list over 2000 MHz but the bios already on the card was above 2000 MHz.
<pic lost but matches 1411/1411 below>
On a second card I bought, the numbers at least appear to be 1340 and 1411.
<pics lost in the multiple edits/merges>
It looks like this is the only 1340 file for exact Hynix memory type for non-special Nitro+: https://www.techpowerup.com/vgabios/192068/sapphire-rx580-8192-170323-1
For 1411, there were two matches for the exact Hynix memory type:
https://www.techpowerup.com/vgabios/191898/sapphire-rx580-8192-170323
https://www.techpowerup.com/vgabios/191262/sapphire-rx580-8192-170320
Instructions were clear enough so I flashed the 1340 bios. Nothing changed. Card still running at 1150 max on FurMark stress test. One number shows 1340 and one shows 1150. Not sure why both GPU Clock and Default clock are not both 1340. I flashed again and rebooted again but no change. (Later edit - after replacing the card back into the PC, the new firmware kicked in and it matches the other card below now. No, I did not confuse the cards. )
<pic lost>
So then I flipped the bios switch and updated the 1411 and got the expected change on the clock but noticed the memory was not clocked high. There are no in the "non-special" Nitro+ list over 2000 MHz but the bios already on the card was above 2000 MHz.
<pic lost but matches 1411/1411 below>
On a second card I bought, the numbers at least appear to be 1340 and 1411.
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