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MP All Models Turn a "new" Sapphire RX580 PULSE into the "Mac Edition" card

startergo

startergo

macrumors 603
Sep 20, 2018
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h9826790 said:
The PolarisBiosEditor 1.6.7 may able to fix the checksum issue. I didn't try that on my own yet. But I used that to edit the voltage pointer, GPU clock, memory voltage, etc for my 256kB PULSE VBIOS, and it's definitely working.

https://forums.macrumors.com/threads/sapphire-pulse-rx580-8gb-vbios-study.2133607/#post-26377909

So, may be it can fix the check sum if we mod the part number. At least, it can automatically fix the check sum after we mod the other parameters.

In any case, I can 100% sure that the method in post #1 still work, my check sum difference is 1A (Hex), all I need to do is just change the "1988-2010" to "0000-2010" (1+9+8+8 = 1A in Hex), then my card has the correct Orinoco framebuffer.

At this moment, I have absolutely no idea if this really has any benefit yet, because the Radeon Framebuffer seems working good on the PULSE RX580. So, if you has any concern, I will say no need to mod. But until a day the card shows abnormal behaviour (e.g. can't wake up properly after sleep), then this can be the fix.
Click to expand...

I did the p/n change with the edited bits to make sure the size is the same, but when I open the edited ROM in PolarisBiosEditor it complains that the checksum is wrong and it "fixes" it for me automatically. The card works in High Sierra, but not in Windows. The drivers refuse to load. Any suggestions?
 
h9826790

h9826790

macrumors P6
Original poster
Apr 3, 2014
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Hong Kong
startergo said:
I did the p/n change with the edited bits to make sure the size is the same, but when I open the edited ROM in PolarisBiosEditor it complains that the checksum is wrong and it "fixes" it for me automatically. The card works in High Sierra, but not in Windows. The drivers refuse to load. Any suggestions?
Click to expand...

Can you show me how you do it? It's hard to tell what's wrong from your description.

Anyway, before you do anything, better flash the original ROM back in.
 
startergo

startergo

macrumors 603
Sep 20, 2018
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h9826790 said:
Can you show me how you do it? It's hard to tell what's wrong from your description.

Anyway, before you do anything, better flash the original ROM back in.
Click to expand...

The original card:
upload_2018-10-9_15-11-16.png


New Rom:
upload_2018-10-9_15-16-54.png


44 30 30 39 30 34 52 45 2D 31 30 33 Original Hex Sum=299
34 45 33 35 33 42 55 2D 4F 34 45 20 Modified Hex Sum=2C0

2C0-299= 27
Subtract FF-27=D8

upload_2018-10-9_15-44-48.png
 

Attachments

  • RX580ROM.zip
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h9826790

h9826790

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Apr 3, 2014
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Hong Kong
startergo said:
The original card:
View attachment 793550

New Rom:
View attachment 793557

44 30 30 39 30 34 52 45 2D 31 30 33 Original Hex Sum=299
34 45 33 35 33 42 55 2D 4F 34 45 20 Modified Hex Sum=2C0

2C0-299= 27
Subtract FF-27=D8

View attachment 793564
Click to expand...

1) This mod is for Sapphire PULSE RX580, not DELL RX580. And you should not apply this mod to any other RX580. Because this will make the macOS believe this is the Sapphire PULSE RX580 and apply the Orinoco framebuffer. This isn't a good idea if your card is not the PULSE, especially the port layout of your card doesn't match the PULSE's, which 100% guarantee Orinoco framebuffer won't fit.

2) We tested your way (fix check sum by altering those large piece FF), it won't work. That's why we developed this "date mod" way to fix the check sum in post #1.
 
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startergo

startergo

macrumors 603
Sep 20, 2018
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Well, I have to subtract 27 and since all numbers start from 30 in HEX it would be hard to alter the date. Anyway, the strange thing is that all Display ports work properly with Orinoco. The only problem I have is the Windows driver and the fact that the CRC check does not pass
 
h9826790

h9826790

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Apr 3, 2014
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Hong Kong
startergo said:
Well, I have to subtract 27 and since all numbers start from 30 in HEX it would be hard to alter the date. Anyway, the strange thing is that all Display ports work properly with Orinoco. The only problem I have is the Windows driver and the fact that the CRC check does not pass
Click to expand...

I believe you can safely mod the "-" (2d) to " " (20), then the remaining 1a difference is very easy to be fixed by changing the 1988 and 2010, to 0002 and 0010.

Anyway, better not to touch that large piece of FF.
 
startergo

startergo

macrumors 603
Sep 20, 2018
5,021
2,282
h9826790 said:
I believe you can safely mod the "-" (2d) to " " (20), then the remaining 1a difference is very easy to be fixed by changing the 1988 and 2010, to 0002 and 0010.

Anyway, better not to touch that large piece of FF.
Click to expand...

Thanks. Now the CRC check worked. Still code 43 in Windows though (signature check). Ran atikmdag-patcher.exe and it signed the driver. Success!
 
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Anto38x

Anto38x

macrumors regular
Aug 19, 2006
165
27
Cork, Ireland
Hi again guys.....

I need your help again.... I have my Sapphire Pulse RX580 8GB Video card and my
DisplayPort Male to Mini DisplayPort Female 4K 60Hz Adapter.... but the one cable that never arrived... the most important the "18AWG Dual Mini 6 Pin Male To 8 Pin Male PCI-e Y Splitter Power Cable For Mac Pro" hasn't arrived and looks like it will never arrive.... can someone send me a link to a pack of two individual versions of this all in one cable from a more European based supplier... as I'm not dealing with China anymore... just a waste of money and time.

That would be a great help. Thank you.
 
turluttu

turluttu

macrumors member
Mar 4, 2018
42
7
Moscow
Yesterday I bought a SAPPHIRE PULSE Radeon™ RX 580 8GD5 video card:

PN 299-1E388-400SA
SKU# 11265-05-20G

Did not touch the bios. Framebuffer Orinoco.

Boot ROM Version: 140.0.0.0.0

Screen Shot 2018-10-11 at 15.27.11.png Screen Shot 2018-10-10 at 20.22.24.png Screen Shot 2018-10-10 at 20.31.13.png
 
Last edited:
I

IanK MacPro

macrumors member
Jul 6, 2018
68
43
Buckinghamshire, UK
Anto38x

Anto38x

macrumors regular
Aug 19, 2006
165
27
Cork, Ireland
h9826790

h9826790

macrumors P6
Original poster
Apr 3, 2014
16,656
8,587
Hong Kong
turluttu said:
Yesterday I bought a SAPPHIRE PULSE Radeon™ RX 580 8GD5 video card:

PN 299-1E388-400SA
SKU# 11265-05-20G

Did not touch the bios. Framebuffer Orinoco.

Boot ROM Version: 140.0.0.0.0

View attachment 793990 View attachment 793991 View attachment 793992
Click to expand...

Thanks for the report. This is interesting. Because when I talked to the Apple engineer via bugreport.apple.com, they actually told me only those two part numbers are "blessed", and all other PULSE 580 can only enjoy RadeonFramebuffer, that's intended behaviour. No fix will be provided.

Anyway, I don't think that has anything to do with 140.0.0.0.0. This new BootROM seems provide zero function for RX580 so far (that's why we still can't see the boot screen).

startergo said:
Strange. Mine shows like this.
[doublepost=1539272171][/doublepost]I wonder if it is this card:
https://www.sonnetstore.com/collections/pcie-cards/products/radeon-rx-580
Click to expand...

CineBench OpenGL test is well know CPU single thread limiting. This absolutely has nothing to do about your GPU performance. It's basically your CPU's single thread speed + driver performance at that moment.
 
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turluttu

turluttu

macrumors member
Mar 4, 2018
42
7
Moscow
h9826790 said:
Thanks for the report. This is interesting. Because when I talked to the Apple engineer via bugreport.apple.com, they actually told me only those two part numbers are "blessed", and all other PULSE 580 can only enjoy RadeonFramebuffer, that's intended behaviour. No fix will be provided.

Anyway, I don't think that has anything to do with 140.0.0.0.0. This new BootROM seems provide zero function for RX580 so far (that's why we still can't see the boot screen).



CineBench OpenGL test is well know CPU single thread limiting. This absolutely has nothing to do about your GPU performance. It's basically your CPU's single thread speed + driver performance at that moment.
Click to expand...

Strange, but I did not touch the bios card. Soon I will check this video card on another computer with the old Boot Rom.
 
h9826790

h9826790

macrumors P6
Original poster
Apr 3, 2014
16,656
8,587
Hong Kong
turluttu said:
Strange, but I did not touch the bios card. Soon I will check this video card on another computer with the old Boot Rom.
Click to expand...

This is a good idea if you can do that.

If possible, move your boot drive to that Mac as well. So, same OS, same kext, same software, same user account, same graphic card, but mainly the BootROM is different.
 
turluttu

turluttu

macrumors member
Mar 4, 2018
42
7
Moscow
h9826790 said:
This is a good idea if you can do that.

If possible, move your boot drive to that Mac as well. So, same OS, same kext, same software, same user account, same graphic card, but mainly the BootROM is different.
Click to expand...

Checked with 138.0.0.00. The same boot disk. Only BootRom is different. No computer with an older Boot Rom.
Screen Shot 2018-10-12 at 02.14.23.png Screen Shot 2018-10-12 at 02.14.37.png
 
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