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MP All Models Sapphire PULSE RX580 8GB VBIOS Study

andysa1966 said:
Sapphire.RX580.4096.170302

This rom flashed no problem, only after i modified it, saved to new file and flashed it, the OS stalls and reports AMD driver issue.
Click to expand...
Which OS Windows or OSX? If it is Windows EFI you need to disable driver signature verification. But first, you need to boot in safe mode replace the AMD driver with the Microsoft basic display adapter and reboot back normally to Windows then use this
 
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startergo said:
Which OS Windows or OSX? If it is Windows EFI you need to disable driver signature verification. But first, you need to boot in safe mode replace the AMD driver with the Microsoft basic display adapter and reboot back normally to Windows then use this
Click to expand...
OS is windows, installed the GT120 and reflashed the RX580, all good now :)
 
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So I compared again the performance of both ROMs that I have that work. The one that came with the card assumed for mining and the one I downloaded from TechPowerUp, the modified ROM for mining performs better in Superposition.

I think something is strange with the ROM from TPU?, the voltage control in Wattman go up, then down and level

769, 881, 1087, 1168, 1150, 1150, 1150

The settings for mining ROM
RX580 saved ROM 2019-08-10 071553.png

RX580 saved Wattman 2019-08-13 165430.png


Superposition_Benchmark_v1.1_7391_1565711976.png



Settings from TechPowerUp

RX580 ROM 2019-08-10 081349.png

RX580 ROM 2019-08-13 171537.png

Superposition_Benchmark_v1.1_7251_1565710925.png


Power Draw Compare

rx580 compare 2019-08-13 211138.png
 
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just follow the instructions, the first post tells you how to make a bios and chose ram brand
 
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thunder72fr said:
Hello,

You can take my rom for Sapphire RX580 8Go Pulse modded (with Orinoco RadeonFramebuffer) (Memory Samung)

http://www.mediafire.com/file/554k1f4uvchx52x/RX.580PulseModdedForMacPro.7z/file
Click to expand...
Hi, I am new to the forum, I just purchased a new Sapphire PULSE AMD Radeon RX 580 8GB GDDR5 for my 2012 MP (attached system screen shot), I am on High Sierra and want to update to Mojave, do I just have to flash the card using your modded rom, or is there some hardware tweaks that physically need doing as well, in order to get boot screen functionality with the card? sorry for the long question... and thank you in advance for any assistance with this question.
 

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Alchemist68 said:
Hi, I am new to the forum, I just purchased a new Sapphire PULSE AMD Radeon RX 580 8GB GDDR5 for my 2012 MP (attached system screen shot), I am on High Sierra and want to update to Mojave, do I just have to flash the card using your modded rom, or is there some hardware tweaks that physically need doing as well, in order to get boot screen functionality with the card? sorry for the long question... and thank you in advance for any assistance with this question.
Click to expand...
You will not get boot screen with this card. Read the post directly above yours for where to go to get a boot screen capable card for your Mac Pro.
 
Ludacrisvp said:
You will not get boot screen with this card. Read the post directly above yours for where to go to get a boot screen capable card for your Mac Pro.
Click to expand...
Thanks for the reply. so what is the rom Thunder72fr attached to his post back in 2008?
 
Alchemist68 said:
Thanks for the reply. so what is the rom Thunder72fr attached to his post back in 2008?
Click to expand...
This thread, if you read it, was about tuning the card voltage / power profile for better stability / performance vs stock. Nothing to do with boot screen support.
 
Ludacrisvp said:
This thread, if you read it, was about tuning the card voltage / power profile for better stability / performance vs stock. Nothing to do with boot screen support.
Click to expand...
Yeah thanks, it all dawned on me just before your reply..... There is a local guy in Sydney who can do the Mac mod for me, so I will send it off to him on Monday.
 
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inarush said:
Are you sure it's a dual bios card? I couldn't find any mention to it in the specifications link I sent you. I might have missed it though.
Click to expand...

Not sure, but I wonder how can it has three modes if no BIOS switch.

Update: Just did some search, it seems this card switch mode by using the associated Windows software, but not hardware switch.
 
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h9826790 said:
Not sure, but I wonder how can it has three modes if no BIOS switch.

Update: Just did some search, it seems this card switch mode by using the associated Windows software, but not hardware switch.
Click to expand...
Thanks for your reply! Do you still think it's safe for me to try to tune its BIOS settings?
 
inarush said:
Thanks for your reply! Do you still think it's safe for me to try to tune its BIOS settings?
Click to expand...

Should be safe if you only use PolarisBiosEditor.

Please make sure you test the setting (e.g. via Wattman in Windows), and only mod the ROM to that setting if the card can pass some stress tests.
 
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Hey folks, just wondering if someone more experienced could help me out here.

Just a little context: I used a MSI RX 580 Gaming X 8G (https://www.msi.com/Graphics-card/radeon-rx-580-gaming-x-8g/specification) to build a hackintosh machine in a rather small Node 202 case focusing on compactness and silence.

In the beginning, I was experiencing two issues with this graphics card: noise and temperature. Man, that fan was LOUD and the card was throttling all the time.

The first issue was remediated by replacing the original fans with two Noctua NF-F12. It sounds MUCH better now, even under high load. But the card is still throttling. Here's a screenshot of an Unigine Valley run:

unigine_valley.png


And it throttles real bad (down to 800 MHz) running Furmark. Is this benchmark any close to real world applications? 🤔

furmark.png


So, my goal here is to undervolt the card looking to trim down a few degrees. I am willing to sacrifice a few GPU MHz in this process.

Here's the original clock and voltage settings:

original_settings.png


What should I do first? Should I reduce the clocks and voltages? For which state? Only the 7th or all of them?

Here's a screenshot of the original BIOS settings, just in case it's useful:

PolarisBiosEditor.png


I am really open to any ideas here.
 
Last edited:
inarush said:
Hey folks, just wondering if someone more experienced could help me out here.

Just a little context: I used a MSI RX 580 Gaming X 8G (https://www.msi.com/Graphics-card/radeon-rx-580-gaming-x-8g/specification) to build a hackintosh machine in a rather small Node 202 case focusing on compactness and silence.

In the beginning, I was experiencing two issues with this graphics card: noise and temperature. Man, that fan was LOUD and the card was throttling all the time.

The first issue was remediated by replacing the original fans with two Noctua NF-F12. It sounds MUCH better now, even under high load. But the card is still throttling. Here's a screenshot of an Unigine Valley run:

View attachment 889651

And it throttles real bad (down to 800 MHz) running Furmark. Is this benchmark any close of real world applications? 🤔

View attachment 889652

So, my goal here is to undervolt the card looking to trim down a few degrees. I am willing to sacrifice a few GPU MHz in this process.

Here's the original clock and voltage settings:

View attachment 889653

What should I do first? Should I change reduce the clocks and voltages? For which state? Only the 7th or all of them?

Here's a screenshot of the original BIOS settings, just in case it's useful:

View attachment 889654

I am really open to any ideas here.
Click to expand...

Try 1340MHz @1000mV in Wattman (change all voltage above 1000mV to 1000mV, and mod the stage 7 clock to 1340MHz.

If stable, you may use this settings. If not, either reduce the stage 6 and 7 clock speed until stable (e.g. to 1300MHz). Or increase voltage (e.g. 1010mV, if thermal capacity allow).

Furmark is way beyond normal usage, that's for stability test, not performance test. The card is expected to get into thermal throttling or power throttling. Don't worry it the GPU can't stay at max clock in Furmark.
 
h9826790 said:
Try 1340MHz @1000mV in Wattman (change all voltage above 1000mV to 1000mV, and mod the stage 7 clock to 1340MHz.

If stable, you may use this settings. If not, either reduce the stage 6 and 7 clock speed until stable (e.g. to 1300MHz). Or increase voltage (e.g. 1010mV, if thermal capacity allow).

Furmark is way beyond normal usage, that's for stability test, not performance test. The card is expected to get into thermal throttling or power throttling. Don't worry it the GPU can't stay at max clock in Furmark.
Click to expand...
Thanks a lot @h9826790 I am trying to find the sweet spot for my card. So far, I have been trying the following settings with apparent stability:

calibrating.png


Note that I tried to be conservative and even lowered the maximum clock from 1340 MHz like you suggested to 1300 MHz.

I used both Furmark and the Valley benchmark to make sure everything is running fine. I even let both of them running at the same time for half an hour to make sure the settings were stable lol.

Now, the question is: let's suppose I want to stick with the clocks and voltages above. How can I consolidate those settings in the BIOS? From you advanced guide, it looks like the only thing you did was to limit the maximum Vcore. I really want to go one step beyond and undervolt the earlier states as well.
 
inarush said:
Thanks a lot @h9826790 I am trying to find the sweet spot for my card. So far, I have been trying the following settings with apparent stability:

View attachment 889722

Note that I tried to be conservative and even lowered the maximum clock from 1340 MHz like you suggested to 1300 MHz.

I used both Furmark and the Valley benchmark to make sure everything is running fine. I even let both of them running at the same time for half an hour to make sure the settings were stable lol.

Now, the question is: let's suppose I want to stick with the clocks and voltages above. How can I consolidate those settings in the BIOS? From you advanced guide, it looks like the only thing you did was to limit the maximum Vcore. I really want to go one step beyond and undervolt the earlier states as well.
Click to expand...

You can try to enter the exact voltage in PolarisBiosEditor. No guarantee can work.

But if I were you, I won't take that risk. Those lower stages doesn't really matter anyway, especially if the card isn't thermal throttling anymore, and able to stay at stage 7.
 
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h9826790 said:
*** For info, this mod is NOT compatible with the OpenCore boot screen mod ***
Click to expand...
As said in the OpenCore/HW acceleration thread, I found out about this issued after a bit of research and testing. Now I'm back on the original firmware that came with my Sapphire Pulse 8GB RX580 (first edition, the one blessed by Apple officially back in the days). I'm running the Pixlas mod, so I should be safe, right?

I saw that there were more recent ROMs out there for my GPU. Is there any point in flashing it with one of those? Or is it pointless?
 
pierrox said:
As said in the OpenCore/HW acceleration thread, I found out about this issued after a bit of research and testing. Now I'm back on the original firmware that came with my Sapphire Pulse 8GB RX580 (first edition, the one blessed by Apple officially back in the days). I'm running the Pixlas mod, so I should be safe, right?

I saw that there were more recent ROMs out there for my GPU. Is there any point in flashing it with one of those? Or is it pointless?
Click to expand...
The original ROM is safe, just consume more power, and the card will run warmer.

Pixlas mod isn't required for RX580
 
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