Hi there, I received a troublesome card from a friend to attempt to "repair".
It is an HD 7950.
Basically, the card seems works fine starting up Windows 10. It works fine when running on Idle Speeds. But as I put a more significant load on the card, my screen will turn blue and have white vertical lines going down. The white lines are hair-thin.
From what I've researched, I believe it may be either a VRM or Memory issue. The Temps are actually pretty decent. In the 30 range while idle, but I don't get to see the temps under load before the screen messes up. Part of me thinks that the issue happens when the Memory speed changes from Idle to load. But I'm not sure if that makes sense because I've been able to run stress tests, and it will actually work under load for roughly 30 seconds then the issue happens. So I'm not sure if the issue occurs EXACTLY when the Memory speeds increase.
Possibly a heating issue? I re-seated the cooler and applied more thermal paste. If I'm identifying the Memory chips correctly, it appears that they aren't in contact with any heat sinks (if I'm looking at the right thing).
Anyways, any help with this would be great. Also, I'm wondering if underclocking the Memory speeds will help. Maybe if I find the speed that screws it up, I can lower the speeds to prevent it.
It is an HD 7950.
Basically, the card seems works fine starting up Windows 10. It works fine when running on Idle Speeds. But as I put a more significant load on the card, my screen will turn blue and have white vertical lines going down. The white lines are hair-thin.
From what I've researched, I believe it may be either a VRM or Memory issue. The Temps are actually pretty decent. In the 30 range while idle, but I don't get to see the temps under load before the screen messes up. Part of me thinks that the issue happens when the Memory speed changes from Idle to load. But I'm not sure if that makes sense because I've been able to run stress tests, and it will actually work under load for roughly 30 seconds then the issue happens. So I'm not sure if the issue occurs EXACTLY when the Memory speeds increase.
Possibly a heating issue? I re-seated the cooler and applied more thermal paste. If I'm identifying the Memory chips correctly, it appears that they aren't in contact with any heat sinks (if I'm looking at the right thing).
Anyways, any help with this would be great. Also, I'm wondering if underclocking the Memory speeds will help. Maybe if I find the speed that screws it up, I can lower the speeds to prevent it.