7xGPU + Windows // modding AMD video driver is the answer

[Coin-Moron]

Using 14.9 driver.
Initially the 6th card was showing the code 43 error and after running the mod, the device got unlisted from the device manager.
Now showing only 5 cards.
Couldn't retrieve back.
Kindly help.

[lbr]

Using 14.9 driver.
Initially the 6th card was showing the code 43 error and after running the mod, the device got unlisted from the device manager.
Now showing only 5 cards.
Couldn't retrieve back.
Kindly help.

In case something goes wrong
By default 6xGPU_mod will create backup registry file in the current folder - launch it and reboot.

Also simply re-installing the driver should help - all changes done by the mod will be gone.
However, device disappearing from the device manager.. weird, maybe there is hardware issue.

[Coin-Moron]

Using 14.9 driver.
Initially the 6th card was showing the code 43 error and after running the mod, the device got unlisted from the device manager.
Now showing only 5 cards.
Couldn't retrieve back.
Kindly help.

In case something goes wrong
By default 6xGPU_mod will create backup registry file in the current folder - launch it and reboot.

Also simply re-installing the driver should help - all changes done by the mod will be gone.
However, device disappearing from the device manager.. weird, maybe there is hardware issue.

Thanks. i will do it.
Is there a mod available for 14.9 driver version?

[HoY]

Why isnt this post sticked yet!

[BitmoreCoin]

This mod is very useful.

[adaseb]

It works. THANKS.

Glad I didn't need to install WIndows 8.1

[lbr]

It works. THANKS.

Glad I didn't need to install WIndows 8.1

You are welcome ; )

p.s.
Windows 10 can manage 8x290 out of the box.
http://hwbot.org/submission/3050127_oldcomer_gpupi___32b_4_radeon_r9_290x_2min_22sec_104ms/

I have not managed to get xp/7/8/8.1 to work with 8x290, but if s1 is willing to provide me access to 8x290@w7 I can make it work.

[adaseb]

I am having issues getting it to work in my other rig which has mixed cards. Some are 280X and some are 7970s. The other rig worked right away because they were all identical cards but this one has mixed cards and I don't know how to install the drivers manually. Since in 13.12mod I was given an INF file to put in the drivers folder and update for each display adapter but here there is only the executable file.

[adaseb]

EDIT!


It seems to work now.

But Radeon-Crimson-15.12-With-DOTNet45-Win7-64Bit doesn't seem to work


Only AMD-Catalyst-15.7.1-With-DOTNet45-Win7-64bit on both rigs works right away.

[Makurika]

It works. THANKS.

Glad I didn't need to install WIndows 8.1

You are welcome ; )

p.s.
Windows 10 can manage 8x290 out of the box.
http://hwbot.org/submission/3050127_oldcomer_gpupi___32b_4_radeon_r9_290x_2min_22sec_104ms/

I have not managed to get xp/7/8/8.1 to work with 8x290, but if s1 is willing to provide me access to 8x290@w7 I can make it work.

Is there still 8 GPU limit for AMD cards? I think there is no limit on nVidia cards. So it is in the design of the AMD driver?

[lbr]

EDIT!


It seems to work now.

But Radeon-Crimson-15.12-With-DOTNet45-Win7-64Bit doesn't seem to work


Only AMD-Catalyst-15.7.1-With-DOTNet45-Win7-64bit on both rigs works right away.

Well.. I've tested 15.12 on 1x7950 + 5x290 and it does work for me.
Maybe you want to try cleanup first - removing driver completely etc.

[lbr]

It works. THANKS.

Glad I didn't need to install WIndows 8.1

You are welcome ; )

p.s.
Windows 10 can manage 8x290 out of the box.
http://hwbot.org/submission/3050127_oldcomer_gpupi___32b_4_radeon_r9_290x_2min_22sec_104ms/

I have not managed to get xp/7/8/8.1 to work with 8x290, but if s1 is willing to provide me access to 8x290@w7 I can make it work.

Is there still 8 GPU limit for AMD cards? I think there is no limit on nVidia cards. So it is in the design of the AMD driver?

No clue about nVidia, however - https://devtalk.nvidia.com/default/topic/738070/cuda-setup-and-installation/8x-gpu-gtx-issue-under-windows/post/4208565/#4208565
So there may be issues as well.

As for AMD, in 8/8.1 if you installed Microsoft driver(from auto-update) not AMD(downloaded from amd.com etc) - then more cards were working. Basically M$ driver had my mod embedded ; ) But not all of it. In w10.. imo a lot of things have changed. Also AMD removed Catalyst.
Actually, the whole idea of the mod grew from this post - https://bitcointalk.org/index.php?topic=193695.msg2536323#msg2536323

Anyway, there were no limits hardcoded or stuff like this - just the driver and it's configuration were not tested properly on 6+ GPU setups.
Imo since nVidia launched Grid, they did test on 'a lot of GPUs' systems and AMD didn't.

[Persiville]

If we can have 12 GPU working on the Asrock H61/81 system, that would be excellent. If we can install 6x7990 and make it working.

[adaseb]

EDIT!


It seems to work now.

But Radeon-Crimson-15.12-With-DOTNet45-Win7-64Bit doesn't seem to work


Only AMD-Catalyst-15.7.1-With-DOTNet45-Win7-64bit on both rigs works right away.

Well.. I've tested 15.12 on 1x7950 + 5x290 and it does work for me.
Maybe you want to try cleanup first - removing driver completely etc.

I actually tried that twice, with DDU and everything but for some reason that 15.12 can't work. Don't know why.

[KNCFUN]

I have a gigabyte GA-990FXA-UD3 R5 and is running 2 graphic cards on the board in the pcies x16
The mobo has 4 pcies 16x and 2 pcies x1 ...

When i try to add a usb x1 pcie riser the pc does not work ,,, Windows 8.1 recognize the usb X1 to X16 pcie riser but when you plug a gpu on the riser is not working ,,,, also i tried the trick with the cable A1, B17 ... https://bitcointalk.org/index.php?topic=36061.120 and it got stuck the bios and i had to remove the mobo battery for a while ..

Also when I place the usb X1 riser in a motherboard X16 pcie slot again is not working .....
should i try risers with flat cable ? 16x to 16x and 1x to 16x ?

If you have any suggestion let me know ....

[asrilani]

As for AMD, in 8/8.1 if you installed Microsoft driver(from auto-update) not AMD(downloaded from amd.com etc) - then more cards were working. Basically M$ driver had my mod embedded ; ) But not all of it. In w10.. imo a lot of things have changed. Also AMD removed Catalyst.
Actually, the whole idea of the mod grew from this post - https://bitcointalk.org/index.php?topic=193695.msg2536323#msg2536323

Anyway, there were no limits hardcoded or stuff like this - just the driver and it's configuration were not tested properly on 6+ GPU setups.
Imo since nVidia launched Grid, they did test on 'a lot of GPUs' systems and AMD didn't.

In the Windows 8/8.1, the auto update driver, which version is that? Is that version good for Ethereum mining?

[lbr]

I have a gigabyte GA-990FXA-UD3 R5 and is running 2 graphic cards on the board in the pcies x16
The mobo has 4 pcies 16x and 2 pcies x1 ...

When i try to add a usb x1 pcie riser the pc does not work ,,, Windows 8.1 recognize the usb X1 to X16 pcie riser but when you plug a gpu on the riser is not working ,,,, also i tried the trick with the cable A1, B17 ... https://bitcointalk.org/index.php?topic=36061.120 and it got stuck the bios and i had to remove the mobo battery for a while ..

Also when I place the usb X1 riser in a motherboard X16 pcie slot again is not working .....
should i try risers with flat cable ? 16x to 16x and 1x to 16x ?

If you have any suggestion let me know ....

I'm running 1x7950+5x290 on 990fxa-ud3 R3 right now. I was running 6x290 on it also.
Using x16_x1 powered risers(flat). Without PCIe precence short(A1, B17).
Motherboard is picky about primary GPU - the monitor must be attached to the GPU selected in BIOS.
Also to run headless "full screen logo show" must be enabled in BIOS.

And try setting PCIe to 1.1 speed in BIOS.

[lbr]

As for AMD, in 8/8.1 if you installed Microsoft driver(from auto-update) not AMD(downloaded from amd.com etc) - then more cards were working. Basically M$ driver had my mod embedded ; ) But not all of it. In w10.. imo a lot of things have changed. Also AMD removed Catalyst.
Actually, the whole idea of the mod grew from this post - https://bitcointalk.org/index.php?topic=193695.msg2536323#msg2536323

Anyway, there were no limits hardcoded or stuff like this - just the driver and it's configuration were not tested properly on 6+ GPU setups.
Imo since nVidia launched Grid, they did test on 'a lot of GPUs' systems and AMD didn't.

In the Windows 8/8.1, the auto update driver, which version is that? Is that version good for Ethereum mining?

http://catalog.update.microsoft.com/v7/site/Search.aspx?q=amd%20r9%20290

[KNCFUN]

@Lbr thanks for the help,,,
Mine is revision 5 the mobo ....
I am waiting some x16_x16 powered risers(flat) from ebay the ones with the blue tape ..

-Do you think they will work or i will have to order the ones that you say (x16_x1 powered risers(flat)) ?
- I want to attach 5 or 6  HD7990 i don't know if i can put so many ...

[sadasa]

As for AMD, in 8/8.1 if you installed Microsoft driver(from auto-update) not AMD(downloaded from amd.com etc) - then more cards were working. Basically M$ driver had my mod embedded ; ) But not all of it. In w10.. imo a lot of things have changed. Also AMD removed Catalyst.
Actually, the whole idea of the mod grew from this post - https://bitcointalk.org/index.php?topic=193695.msg2536323#msg2536323

Anyway, there were no limits hardcoded or stuff like this - just the driver and it's configuration were not tested properly on 6+ GPU setups.
Imo since nVidia launched Grid, they did test on 'a lot of GPUs' systems and AMD didn't.

In the Windows 8/8.1, the auto update driver, which version is that? Is that version good for Ethereum mining?

http://catalog.update.microsoft.com/v7/site/Search.aspx?q=amd%20r9%20290

I searched the "AMD R9 390", there is no Win 8.1 drivers. Does it mean we cannot get auto update for 390 in Win 8.1?

http://catalog.update.microsoft.com/v7/site/Search.aspx?q=amd%20r9%20390