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Calling all Gurus, I'm in desperate help here, please come in and help regarding GPU issues.

Soldato
Joined
26 Sep 2013
Posts
10,746
Location
West End, Southampton
Ok fellas.

Will try and not make this a wall of text, but I've got some serious issues here, 24 hours later after dozens of different troubleshooting and fault finding exercises, I come to you desperate and all for some serious help.

Here's the situation.

Previously I had been running crossfire MSI 390 cards in my system on a BenQ 144hz Freesync screen, the one in my sig. Everything was getting way to toasty so this past week I've put together a water cooling project, finally get it filled last night and got rid of all the air.

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Ok so anyway, when I tried gaming or running benchmarks last night, within a few seconds the screen starts going black (but not in standby) then a second later the visuals of whatever i'm playing displays again, then after that point the screen just constantly flashes black randomly again flicking the game back on the display in intervals etc etc. There is no issue on the desktop, no issue watching videos, it just seems to be when running anything 3d. Temps are around 25c idle and 40c on the core when benching and 60c on the VRM's.

I tried reinstalling drivers last night, tried different display port cables, running different screen hz rates, tried turning off freesync, only used 1 card each test but every time I tested a game or bench the same outcome. I then tried using HDMI on the monitor and was absolutely fine, and also tried using DVI and was fine also, no black screens flashing on and off at all.

So this morning I decided to drain the loop, and swap the cards around to see if the same black screens would occur on the other gpu. Well exactly the same. When running DP and gaming, black screens again. Tried HDMI and DVI just fine no issue.

I then did a windows reinstall and latest drivers, black screens when gaming again.

I bought a brand new Superflower 1300w PSU for this water cooling, thought then to check the PSU (clutching at straws now) so connected my old PSU up outside the case with a cable across the pins and just connected to 1 GPU, still black screens.

Now, this problem seems to only revolve around DisplayPort and gaming/benching. I need to test another Freesync monitor on this system to rule out the monitor, I just don't know if it's the DP port on the monitor playing up. I've never borked any piece of hardware in my life, I'm incredibly thorough and careful when doing any work on components, but if maybe there was an issue with one card, what are the chances that I've messed up both cards which show the exact same issue, you know what I mean. None of us our perfect, but I'm so lost of any idea what to do now. I don't want to send two GPU's back to MSI for RMA then find they send them back nothing wrong, and exactly the same for the screen. I just need to find a way of ruling out the monitor once and for all.

I need all you gurus to please throw some light on this one, I'm actually destroyed at the minute, just completely out of ideas.
 
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Have you tried an older version of Windows (not 10) and older drivers.

No I've not gone back to older version of Windows Kaap, I was running this setup (without the watercooling) on this same screen and Windows 10 previously with no issue what so ever.

So using HDMI and DVI gives no issues at all? Previous to your WC setup, your DP connection worked fine, including in X-fire?

Correct, no issues using HDMI and Dual Link DVI. Previous to my WC setup yeah every pretty much perfect, the odd black screen when playing BF4 but I put that down to the black screen issues with the Cat 15.7.1 drivers that had a known black screen issue.
 
As you've swapped the GPU's around my call would be DP/Monitor issue - which you know already.

Don't suppose you tried setting the Monitor to 60Hz and try DP?

Only other offering would be new DP cables.

Nice rig by the way

Have you tried an older version of Windows (not 10) and older drivers.

Good shout - wasn't a few others having issues with win 10 and 390 variants?
 
As you've swapped the GPU's around my call would be DP/Monitor issue - which you know already.

Don't suppose you tried setting the Monitor to 60Hz and try DP?

Only other offering would be new DP cables.

Nice rig by the way



Good shout - wasn't a few others having issues with win 10 and 390 variants?

Tried 2 DP cables that I have at home, I know both of them to be ok. And also tried setting refresh rate to 60hz last night and used DP with the same black screen issue. Weirdly, when I ran a few tests in windowed mode, it was absolutely fine. But today when I've tried Windowed mode, the black screens are back also.
 
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In that case, the chances of both your DP's on your cards being faulty are zero to none.

I take it all was good when your cards where on air?

Daft question - does your mobo have onboard DP?
 
In that case, the chances of both your DP's on your cards being faulty are zero to none.

I take it all was good when your cards where on air?

Daft question - does your mobo have onboard DP?

yes both cards absolutely fine using DP on air before the WC. And this is the thing, we are all not perfect and from time to time things do happen, but to have exactly the same issue on both the cards seems a bit to much for me. Does anyone live near Southampton/Eastleigh/Winchester that has a monitor I can try lol. I really need to rule out this screen. And yes motherboard has DP
 
Does the black screen happen with only one card running say in a loop of heaven?
make list of what you've tried so far? if you not able to get another moniter to try perhaps use the house tv?

Zia
 
Is that through using Display port? what happens when you connnect using hdmi on tv and benching?

Zia

Doh just read the post again.
defo display port issue then.i would say handshaking issue between gpu and moniter
 
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Try the OpenGL test in Cinebench.

just tried, apparently "your GFX-Card does not support the required features for this test"

Managed to get through 3dmark at 1fps with no black screens using the IGPU and DisplayPort. Called that be classed as a good test running 1fps/ bypassing 144hz and Freesync though, this is the question lol.
 
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just tried, apparently "your GFX-Card does not support the required features for this test"

Managed to get through 3dmark at 1fps with no black screens using the IGPU and DisplayPort. Called that be classed as a good test running 1fps/ bypassing 144hz and Freesync though, this is the question lol.

Try a few of the games used in this review.
http://www.anandtech.com/show/5771/the-intel-ivy-bridge-core-i7-3770k-review/14

BF3 got around 37 FPS. Might be a better test.
 
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