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Gnx231

macrumors member
May 8, 2021
45
9
well I was trying the dos ver. but couldn't find any detailed directions. I'm wondering if i got an external pci slot and plugged it into my daughters aio pc?
 

hwojtek

macrumors 68020
Jan 26, 2008
2,274
1,276
Poznan, Poland
Same instructions as the Windows version, it’s command line anyway. I don’t know an AIO PC with external PCIe slot, would need an AIO with Thunderbolt port.
 

h9826790

macrumors P6
Apr 3, 2014
16,616
8,548
Hong Kong
here is what it says. can't figure it out. so old it won't let me boot from usb so linux is out.
If you are OK to use DOS, then try the DOS version as per traderdude123 said.

For Linux, boot from USB isn’t necessary, you can also create LiveCD etc if you are happy to try Linux.
 

lancemcv1

macrumors regular
Jan 12, 2010
151
56
But what is the monitor reporting? There will be some button when pressed , will show details of the receiving signal. usually a small info window. That window should show resolution/refresh rates/color depth...etc.

What is the info shown by the monitor?

Apple never allowed 4k/120hz RGB 444 10 bit as of now. you may get 4k 120hz , but not full RGB 10 bit.

For e.g I have a LG CX , when I press the green button on my remote. it shows all the details. With a RX 6800 XT on Ventura 13.4. Best I could get was 4k 60hz RGB 10 bit or 4k 120hz YCBCR 420 10 bit. We do not want YCBCR. We want full RGB 10 bit.

I haven’t set that up in windows yet don’t know how to do it in macOS except for the information in the system profiler and I just tore down the whole set up to place it on the new table with my speakers, so I’ll report back when I get back in the windows.
 

prefuse07

Suspended
Jan 27, 2020
895
1,066
San Francisco, CA
Not sure how to check this in Mac OS, the monitor just says 4K at 120, in the in the monitors OSD, it does not show it when in the service menu either I can select RGB, I just tour the whole thing down to put it and my speakers on a new stand, will look when it’s back up.

System Info > Graphics/Displays

Should look something like this:

Screenshot 2023-05-30 at 1.30.33 PM.png



Also, when you go into Settings > Displays : Can you select 120 as the refresh rate (from the drop down)?

(below is not my picture because I am on Ventura and the Settings look different than Monterey)

j6b5sbbjoyj71.png
 
Last edited:

traderdude123

macrumors member
May 12, 2023
81
48
Not sure how to check this in Mac OS, the monitor just says 4K at 120, in the in the monitors OSD, it does not show it when in the service menu either I can select RGB, I just tour the whole thing down to put it and my speakers on a new stand, will look when it’s back up.
You don't need to check it in macOS. You will need to check it on the monitor.

Check the manual to see if there is any instruction to see if you are getting RGB or YCBCR signal. Every monitor/TV has this option. Surely your monitor has it too.

We know you are getting 4k 120hz , that part is confirmed. Only the RGB or YCBCR part is NOT confirmed.

As far as I know , there is no reported evidence of getting 4k 120hz RGB 10 bit on a AMD 6000 Series card anywhere on the internet.

you are probably getting 4k 120hz YCBCR 420. That's what I also get with my LG CX OLED. Intel Macs cannot output 4k 120hz RGB 10 bit from a AMD 6000 Series card. if you have any proof of this, let me know.
 

joevt

Contributor
Jun 21, 2012
6,700
4,089
Not sure how to check this in Mac OS, the monitor just says 4K at 120, in the in the monitors OSD, it does not show it when in the service menu either I can select RGB, I just tour the whole thing down to put it and my speakers on a new stand, will look when it’s back up.
macOS doesn't show output resolution and output color depth in System Information.app. It only shows framebuffer resolution and framebuffer color depth.

You can see output resolution using SwitchResX by double clicking the selected resolution in the Current Resolutions list and looking at Active Pixels.

You can see output resolution and output color depth / encoding / etc. using AllRez.
 

lancemcv1

macrumors regular
Jan 12, 2010
151
56
macOS doesn't show output resolution and output color depth in System Information.app. It only shows framebuffer resolution and framebuffer color depth.

You can see output resolution using SwitchResX by double clicking the selected resolution in the Current Resolutions list and looking at Active Pixels.

You can see output resolution and output color depth / encoding / etc. using AllRez.
System Info > Graphics/Displays

Should look something like this:

View attachment 2209848


Also, when you go into Settings > Displays : Can you select 120 as the refresh rate (from the drop down)?

(below is not my picture because I am on Ventura and the Settings look different than Monterey)

View attachment 2209853
I posted the system report above in an earlier post, and yes I can select 120 because I injected the resolution with SwitchResX before it was not available.
 
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lancemcv1

macrumors regular
Jan 12, 2010
151
56
You don't need to check it in macOS. You will need to check it on the monitor.

Check the manual to see if there is any instruction to see if you are getting RGB or YCBCR signal. Every monitor/TV has this option. Surely your monitor has it too.

We know you are getting 4k 120hz , that part is confirmed. Only the RGB or YCBCR part is NOT confirmed.

As far as I know , there is no reported evidence of getting 4k 120hz RGB 10 bit on a AMD 6000 Series card anywhere on the internet.

you are probably getting 4k 120hz YCBCR 420. That's what I also get with my LG CX OLED. Intel Macs cannot output 4k 120hz RGB 10 bit from a AMD 6000 Series card. if you have any proof of this, let me know.
Ok, the OSD on this monitor is quite limited, I know there is a way to select RGB as a picture profile, I will look again.
 

Gnx231

macrumors member
May 8, 2021
45
9
So I tried amdvbflash ver. 3.31 and installed the amd driver for the video card. now gpu-z can see the card is a 6800. I then install the flash driver, then try and load amdvbflash.exe and get the driver not installed screen. this is so crazy it shouldn't be this difficu;t. is there a way to force amdvbflash to open? thats all i need rom is patched ready to go.
 

traderdude123

macrumors member
May 12, 2023
81
48
@Gnx231

Can you provide complete info on how you are trying to flash?. Info should include OS Version , commands are you running and error messages.

Flashing should not be this hard.

I once flashed my RX 5700 with RX5700 XT rom on windows 10, no hassles.
 

Gnx231

macrumors member
May 8, 2021
45
9
Ok. Sorry been busy. So it was win. 7 ult. originally. then I loaded win 7 pro. Same issues.The driver not installed please run amdvbflash driver installer.exe. Then tried my daughter old pc with win 7. same. So I determined it was a win 7 problem. All the pc's i was using were too old for win 10. So i bought one off offerup cheap and was able to get it flashed. It works amazing in the mac. Thank you to everyone who was willing to help. If anyone has questions on performance let me know.
 
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traderdude123

macrumors member
May 12, 2023
81
48
There are reports of getting 4k 144 hz out of the box on macOS 14.0 Sonoma beta.

Can someone confirm 4k 120hz RGB 444 on macOS 14.0 beta?

This is with the AMD 6000 Series cards.
 
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kvic

macrumors 6502a
Sep 10, 2015
516
459
There are reports of getting 4k 144 hz out of the box on macOS 14.0 Sonoma beta.

Can someone confirm 4k 120hz RGB 444 on macOS 14.0 beta?

This is with the AMD 6000 Series cards.

The thing is decent 4k monitors are only 60Hz. So practically benefits no one except for gaming on Mac if even true.

Even Apple's first-class citizen, Studio Display doesn't support variable refresh rate (named as ProMotion by Apple). The next update to ASD or a slightly higher priced ASD sibling may support variable refresh rate.

3rd party 4k monitors with variable refresh rate + decent colors + nice touch for Mac are at least a couple of years away.
 

SDAVE

macrumors 68040
Jun 16, 2007
3,578
601
Nowhere
The thing is decent 4k monitors are only 60Hz. So practically benefits no one except for gaming on Mac if even true.

Even Apple's first-class citizen, Studio Display doesn't support variable refresh rate (named as ProMotion by Apple). The next update to ASD or a slightly higher priced ASD sibling may support variable refresh rate.

3rd party 4k monitors with variable refresh rate + decent colors + nice touch for Mac are at least a couple of years away.

There are good 4k 144Hz panels but they are expensive.

I have dual Studio Displays and they aren't the best panels around even at 60hz. They are, to me, mediocre at best. What saves it is the 5k res and the glass on top which makes black look better. It is not as good as the XDR display or other miniLED or OLED displays or IPS displays. I think for $2k its too expensive, but I got them because I need the Apple color accuracy and also they look good enough for what I do (display quality and aesthetic) but I've had better panels. And the webcam and mics are good I use a lot of Zoom for work.
 

jdmarlow

macrumors newbie
Jun 14, 2021
20
19
I'm a little late to the party on this --- but I'm in the process of Flashing my AMD 6900XT right now. I've got the card in a PC and have followed all the directions perfectly. GPU-Z export the ROM, use Syncretic's patcher, and then load the patched ROM up in AMD VB Flash. Unfortunately in AMB VB Flash (v3.31 running on Windows 10) when I hit PROGRAM I get an error that says "Error reading from ROM." Has anybody run into this? I'm desperate to complete the work here. This is the very last step, so don't know what to do.
 

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jdmarlow

macrumors newbie
Jun 14, 2021
20
19
I finally did that and it worked. Unfortunately AMD VB Flash froze mid-way during the flashing process. I think the card still works but I can't seem to get this thing finished.
 

jdmarlow

macrumors newbie
Jun 14, 2021
20
19
Unfortunately it seems like my ROM flashing attempt failed and my card is possibly bricked. Is there any recourse at this stage or do I just use it as a paper weight now?
 

h9826790

macrumors P6
Apr 3, 2014
16,616
8,548
Hong Kong
I finally did that and it worked. Unfortunately AMD VB Flash froze mid-way during the flashing process. I think the card still works but I can't seem to get this thing finished.
The computer may looks like hang for few minutes. Did you wait for the process to complete?

Or force shutdown / reboot when that happen?

If the card still works after force shutdown / reboot, then it shouldn't be bricked

Unfortunately it seems like my ROM flashing attempt failed and my card is possibly bricked. Is there any recourse at this stage or do I just use it as a paper weight now?
"Not function properly" isn't really bricked.

As long as the computer can still boot, and able to detect there is a PCIe device installed, you still have a chance to flash the original firmware back in to rescue the card.

However, if the computer can't see the card at all. Then you will need a hardware flashed to flash the card.
 
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