I bought a Samsung Odyssey G9 and Nvidia 5070ti about a month ago. Monitor came first, works great. A week and a half later, I get the GPU. Case is 1mm too small for GPU, so I buy a new case (great start). Now my video (DisplayPort) and audio (USB to an interface) output drops, regardless of activity, then my fans ramp up. Then only solution I’ve found is a manual restart.
My PSU was almost a decade old anyway, so I bought a new one just to rule that out (again, great). Event Viewer and Reliability Monitor show kernel errors related to Nvidia drivers. So I switched from the standard driver to Studio to rule that out, same result. So I updated my mobo BIOS, same result. At that point I felt comfortable calling the GPU somewhat defective and returned it (had to pay for shipping, $171, again great). Replacement GPU arrived yesterday, and my outputs just dropped again and needed a manual restart. This time I’m not seeing any error codes however. I’m losing my mind, I really need help from a tech wizard.
Win11 Pro Gigabyte Z490 Pro AX Intel i9-10900F RAM 16GB (I think Vengeance) Nvidia 5070-ti Corsair RM1000X
Have you tried to reinstall windows? Or at least run a repair? Sometimes this can be a OS problem.
You can also use a wattage meter where you plug the computer in and measure it through the meter. You could see if there is a abnormally high power draw and begin to narrow things down.
Unplug everything that isn’t necessary to see if it’s a accessory issue.
One last thing you can do is grab a pen and paper, and setup a software CPU temp monitor and write down everything that happens when it goes black. Especially sounds the computer makes.
Also try and replicate it with another monitor.
I’ve spent so much time testing RAM, using DISM, and scanning drive health…its nauseating. Considering the machine is good with the old GPU (which I want to rehousing in a different machine), I feel comfortable ruling out other peripherals (mouse, keyboard, audio interface). But correct me if I’m wrong here
I ran MSI Afterburner for a while too, forgot to mention that. Even under load, none of the components went over 30°. I stress tested the CPU and GPU for a long time just to see if it made the system more unstable, but it didn’t seem to make a difference
Do you have issues with other usb devices?
If two GPUs have had the issue would it not be a problem with the motherboard?
Have you tried a different cable to the monitor?
No other USB issues
The motherboard is becoming my concern. Before I disassemble my computer again and buy yet another part, I’d like to make absolutely sure that this is the problem and not (for example) a simple setting change
Different cable as in HDMI? In that case no, and I don’t have a different DP cable to try. I’m using the one that came with my display