Topic Title: BSOD with CrossfireX @ 144Hz refresh rate
Topic Summary: PC blue screen with multi-GPU and fast refresh rate monitor
Created On: 07/09/2013 04:40 PM
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 07/09/2013 04:40 PM
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Joined: 07/09/2013

I have a very specific problem.  It is repeatable (for me) and would be interested to know if there is anyone else out there for who it is working.

I cannot get a 144Hz display refresh rate to work with multi-GPU.  The PC blue-screens in the ati driver module.

I can reproduce this problem with two separate PCs. Unfortunately I only have the one monitor capable of 144Hz.

There is no problem with single GPU (CrossFireX disabled or non-fullscreen) and no problem at 120Hz.

For me it is specific to 144Hz with dual-GPU.  Please can someone else tell me whether this is a known problem or whether it should work! Thanks!

The technical details:

Monitor (single):
Asus VG275HR connected via dual-link DVI-D running native res (1080p)

Asus Radeon HD7990-6GD5, i7-4770k, Asus Z87-Deluxe, OCZ ZX1250
Win7-64 Pro SP1, 13.6Beta2 (tried 13.4 too)
Stock voltages/frequencies 

Asus Radeon HD7970-3GD5 twin, i7-3930k, Asus P9X79-Pro, OCZ ZX1250
Win7-64 Pro SP1, 13.4
Stock voltages/frequencies

To reproduce - start any OpenGL or DirectX app fullscreen (1920x1080) at 144Hz refresh rate.  Even the 'SimpleSample' app from the D3D9 SDK shows the problem.  CrossFireX must be enabled.

Somebody out there must be running similar setups!

 07/09/2013 07:32 PM
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Doubtful someone would be running a $700 nVidia 3D Vision monitor on an AMD graphics card. Also, from the ASUS webpage:

To activate 144Hz function (in 2D mode), Dual-link DVI and a selected graphics card with the latest driver are required.

ASUS Sabertooth 990FX/Gen3 R2, FX-8350 w/ Corsair H60, 8 GiB G.SKILL RipjawsX DDR3-2133, XFX HD 7970 Ghz, 512GB Vertex 4, 256GB Vector, 240GB Agility 3, Creative X-Fi Titanium w/ Creative Gigaworks S750, SeaSonic X750, HP ZR2440w, Win 7 Ultimate x64
 07/10/2013 04:17 AM
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Thanks for the reply black_zion.  I am (or at least trying to ).

What I don't understand is that if it was a monitor limitation, why does single-GPU work ok at 144Hz?  That was what made me question the AMD config/driver.

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