• Welcome to TechPowerUp Forums, Guest! Please check out our forum guidelines for info related to our community.

Screen Tearing from GPU OC - Windows 10 Upgrade

jed

jed

Joined
May 14, 2011
Messages
356 (0.07/day)
System Specs
System Name REAPER
Processor AMD FX-8350 x8 @ 4.64 GHz (20x232, 1.4625v)
Motherboard Gigabyte GA-990FXA-UD3
Cooling Corsair Liquid H60. 2 front in, 1 side in, 1 rear out (H60), 1 top out.
Memory G.Skill Sniper 2x4 GB DDR3 1333 @ 1546
Video Card(s) Sapphire HD 7950 3GB @ 1095/1395
Storage Crucial M500 240 GB SSD and Western Digital Green 1TB 7200 RPM
Display(s) Acer H223H 22.5"
Case Antec 300 Black Steel
Audio Device(s) N/A
Power Supply Corsair CX-600 Watt 80 Bronze
Mouse Corsair Sabre RGB Optical
Keyboard Logitech G610 Mechanical
Software Windows 10 Pro x64
Benchmark Scores 3dMark 2011 - 8965 15210 3dMark06 (old system)
Hey all,

Just upgraded to Windows 10 today. My Windows 7 wasn't even taking Live Updates anymore, so time to call it quits. I ran my 7900 perfectly fine at 1095 / 1395 during my Windows 7 time. Today after I got everything ready to go, I reinstalled the correct driver for Windows 10 and turned up the OC. Even bringing up the clock by 10 MHZ, it would cause terrible screen tears. Tried upping the power control but that didn't make a difference. Temps were fine.

Looking for help with this. Not sure why it would make such a drastic difference in screen tearing with an OS upgrade.

November 6, 2017
 
Check power saving features.
 
That's not screen tearing. I don't know what I would call it. But it's definitely not screen tearing. Also makes no sense that overclocking would be the cause when there's no load on the GPU. As in when there's no actual clocks being overclocked.
 
Those are artifacts. Most likely your VRAM is not stable at that clock (and it has nothing to do with Windows).
 
Would an OS swap change any previous VRAM settings? This card ran perfectly way over stock before the swap. Plus, why would only a +10 MHZ increase cause this to artifact (under no load) so bad even if it was the voltage?
 
Your card is failing.
 
eidairaman1 said:
Your card is failing.
Click to expand...

You sure? It was running at full OC with Windows 7 with no issues. Two hours later after Windows 10 installed, this issue arises. That would be a wicked coincidence.
 
jed said:
You sure? It was running at full OC with Windows 7 with no issues. Two hours later after Windows 10 installed, this issue arises. That would be a wicked coincidence.
Click to expand...

Read my signature below before doubting this.

Go back to W7 then and see if it changes...

Could be the monitor too.

Another thing to try, clean system of dust, replace thermal compound, check cables, replace psu...
 
Last edited:
jed said:
You sure? It was running at full OC with Windows 7 with no issues. Two hours later after Windows 10 installed, this issue arises. That would be a wicked coincidence.
Click to expand...
It's not a coincidence, it's just a part which revealed that your GPU has issues.
1) Memory mapping (incl. vmem) is slightly different in Win10, GPU load in 2D is also higher.
2) both GPU and VRAM are susceptible to wear and tear over time, especially if overclocked. Just because you got +100MHz out of the box does not guarantee that you'll have that OC forever.
I had quite a few 7000- and 200-series cards in the workshop that worked fine in Win10 and Ubuntu (both 2D and 3D), but failed on Windows 7 (the opposite of yours). And the issue was always a faulty GPU or VRAM.

Another thing that could cause horizontal lines flickering on screen is an electrical noise or signaling issues on VGA output. I've only seen it once on client's GTX750, and I had to replace few small mosfets on HSync of VGA output and fix some shielding issues. If you are connected to DVI output - then it's probably not the case.

At least try to drop all clocks to stock values, and if you are running a third-party BIOS - flash it back to stock. Clean your video output connectors with isopropyl and a toothbrush. See if it changes anything.
 
This was fixed by rolling back from ReLive to a previous AMD driver. Then, I had to use MSI to OC while disabling the 2nd monitor under Display Settings. OC saved and ran fine without any artifacts. I re-enabled the second monitor, and so far things have been smooth from there. It sounds like this is quite an issue and I was able to find a thread on it with that solution.
 
Everyone is wrong about this issue.

It's cause when you have 2 monitors with a 7900 series you get screen jumps when you overclock cause it drops the clocks to lowest levels.

unplug one monitor and try to overclock and it will work.
 
natr0n said:
Everyone is wrong about this issue.

It's cause when you have 2 monitors with a 7900 series you get screen jumps when you overclock cause it drops the clocks to lowest levels.

unplug one monitor and try to overclock and it will work.
Click to expand...

Thanks, this was semi-accurate for me. Before Win10, I had my dual monitors OC'd with no issue. When I did Win10 I was having the problem, but then used that solution and re-activated my monitor for success.
 
natr0n said:
Everyone is wrong about this issue.

It's cause when you have 2 monitors with a 7900 series you get screen jumps when you overclock cause it drops the clocks to lowest levels.

unplug one monitor and try to overclock and it will work.
Click to expand...

Yup , this also happened on my old 5770.
 
You must log in or register to reply here.
Back
Top