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Thread: [BIOS Mod] RX480 -> RX580 Conversions + How-to RX470/RX480 -> RX570/RX580 Reply to Thread
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  Topic Review (Newest First)
12-08-2019 05:05 PM
hellm Afaik only the Polaris20 RX580 with original sub ID and full shader count doesn't need the driver patch.
12-06-2019 09:23 AM
GabCar
Quote: Originally Posted by hellm View Post
yeah.. you're a little late to the party. So, i am sorry, but u have to search for your answers. First thing, the reason for this thread was to use proper modified BIOS version, so we can be sure the card is running as intended, speaking of the VRM.
For your problem, there should be some information for 570 Gigabyte here, might even be an modded 580 BIOS for this card buried in this thread. I don't know anymore, we had something about Gigabyte and Sapphire 570s i believe.
Since the new 590 and the special chinese 570-580-hybrid card, the driver rejects a 580 with less than max shader count. Should be some info on this in the FAQ, you need a driver patch with your GPU. And if you find nothing else, post#3 gives you all you need to mod the original BIOS of your card.
Would it be possible to flash a 570 to a chinese 580 bios id so that we dont have to mod the drivers every update since they have the same shader count
11-04-2019 01:15 PM
hellm
Quote: Originally Posted by Châu Tô View Post
sorry guy I now this toppic is old but I'm new here and I just wonder that can I flash my gigabyte RX570 8GB gaming to RX580 8Gb? (just to show off with my friend )
yeah.. you're a little late to the party. So, i am sorry, but u have to search for your answers. First thing, the reason for this thread was to use proper modified BIOS version, so we can be sure the card is running as intended, speaking of the VRM.
For your problem, there should be some information for 570 Gigabyte here, might even be an modded 580 BIOS for this card buried in this thread. I don't know anymore, we had something about Gigabyte and Sapphire 570s i believe.
Since the new 590 and the special chinese 570-580-hybrid card, the driver rejects a 580 with less than max shader count. Should be some info on this in the FAQ, you need a driver patch with your GPU. And if you find nothing else, post#3 gives you all you need to mod the original BIOS of your card.
11-03-2019 12:14 PM
Châu Tô sorry guy I now this toppic is old but I'm new here and I just wonder that can I flash my gigabyte RX570 8GB gaming to RX580 8Gb? (just to show off with my friend )
10-25-2019 01:43 PM
hellm At full speed, with the same voltage and clock rates your card will use the same amount of power as before. There might be a tiny gain in performance, so efficiency is slightly better.

In idle, you can achieve the same with a 480 BIOS by activating, sorry i forgot the exact name of this option, some power save mode in the driver. The 580s don't have that option, it is activated by default, and you can't change that.

Memory timings should improve efficiency, but you also have more power consumption after all, because GPU utilization at least for the mem controller is also raised.

The two BIOS files for the XFX GTR should also fit your card. Though, you should consider the safety suggestions if you have some special edition; so be sure you have samsung vram and an IR3567B voltage controller on your card.
10-25-2019 03:35 AM
jswjimmy Hello,

Sorry if this has already been covered but I couldn't find it using the search.

I have a XFX GTR RX 480 Triple X Edition 8GB (the Best Buy one with hard swap fans). I saw early in the thread that someone had already flashed this card but my question is a little more specific.

My overall goal is to lower power consumption while also boosting performance(but at stock speed). I have until now just been lowering the mV on the GPU and the RAM. From what I have been reading flashing to a RX 580 will help boost performance slightly (because of the tighter ram timings) and use slightly less power (since the power management is better on the updated bios). Do I have this correct?

If so is there a premodded BIO I can download for this card? I'm more than comfortable using a HEX editor (I modded the bios on my Pentium 2 motherboard back around 1999 for large IDE support) but if I can save time using a premade one that would be nice.
10-23-2019 11:57 AM
overpower @hellm 3 days now and each time I open the pc, except the time between bios and lock screen, the fans starts to work, all 3 of them. Before that, they would only start after I logged in so msi ab could start and set the fan profile. I don;t know why it behaves like that. I guess gpu have more voltage at the boot so it's enough for the fan to start? Even if I chose manually 100% fan speed, the middle one wouldn't spin before.

Thanks for all the help
10-20-2019 06:16 AM
hellm afaik Zero RPM is only deactivated by that one byte in the BIOS.

If you are using one of my modded BIOS files, you only have to update CRC with PBE after you edited it. You could also update the GOP, but this is not necessary.
10-19-2019 06:12 PM
overpower
Quote: Originally Posted by hellm View Post
..oh, and if you want to spare yourself all that BIOS flashing trouble, SPPT works also for Polaris:
https://www.overclock.net/forum/70-a...l#post25834851
you will find the complete fan table there
If I'm not mistaken, I cant turn off the zero setting using WattTool, right? Only min/max

Quote: Originally Posted by hellm View Post
Before flashing, pls read the !!! marked stuff, at least, because without your card won't boot. You have to at least correct the checksum; and since your modded your BIOS, you have to either turn the id to a 580 BIOS, or patch the driver. For UEFI boot, you also have to copy the magic GOP to your BIOS. I think this information is found all over post#3..
If I try to edit your modded bios, by just editing the hex value, I'm not good to go with the flashing? I'm already using your modded 480 strix, I just want to change the hex value for zero fan setting
10-19-2019 01:48 PM
hellm Not that min PWM, i meant the "idle PWM", sorry. The right one is found at offset 0x9E7F in your BIOS, and it is set to 0x23 = 35% PWM. So this should already be higher than what you want.
For the Zero RPM thing, yes, you found the byte to switch that off.

Before flashing, pls read the !!! marked stuff, at least, because without your card won't boot. You have to at least correct the checksum; and since your modded your BIOS, you have to either turn the id to a 580 BIOS, or patch the driver. For UEFI boot, you also have to copy the magic GOP to your BIOS. I think this information is found all over post#3..

..oh, and if you want to spare yourself all that BIOS flashing trouble, SPPT works also for Polaris:
https://www.overclock.net/forum/70-a...l#post25834851
you will find the complete fan table there
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