RX 6700XT failing VRAM
RX 6700XT failing VRAM
Over the last week my PC kept crashing while playing games. I didn’t see a BSOD, it would just end up with a black screen, sometimes restarting right away, other times staying on until I manually power cycled it. The Windows event viewer never displayed any errors.
I’ve run several tests and managed to replicate the issue:
- 8 hours of Memtest86 showed no problems.
- 1 hour of Prime95 passed.
- 1 hour of OCCT Power Test passed.
- 1 hour of OCCT GPU test and multiple Superposition runs all passed.
- About 10 minutes of OCCT VRAM test matched the same crash.
It seems my 6700XT might have a couple of VRAM bits acting up. I’m considering underclocking the VRAM, but Adrenalin’s max is capped at 100% (2000 MHz) and I can’t raise the voltage to improve stability. Right now I’m stuck without a budget for a new GPU.
Specs:
Ryzen 5 3600
RX6700 XT
ASRock B450M PRO4
CoolerMaster 850W Gold V2
TL;DR: VRAM is unstable. Underclocking not possible or effective. Need help!
I needed to refresh my AMD chipset drivers and all my crashes disappeared.
CoolerMaster 850W Gold V2
What is the age of your PSU in this build?
ASRock B450M PRO4
Do you need help finding a trustworthy 750W PSU to borrow from a friend or neighbor to test if it helps? Have you considered adjusting your GPU's voltage settings? What temperatures are you observing on your GPU?
Also, could you share the model and make of your case? How many fans are there, and what is their orientation in your build?
Are there any concerns beyond gaming? No problems with tasks like browsing, streaming, video playback, or using other programs.
The PSU is under four years old and remains free of dust. Stress testing the GPU and CPU at full power doesn’t cause crashes. I’m unsure about the BIOS version since the motherboard was purchased used around three years ago after switching to SFF. Upgrading it might be worthwhile?
I considered undervolting the VRAM, but only the SoC controls are available. Temperatures stay normal. It rarely exceeds 60°C during stress tests—usually around mid-50s while gaming. The case is a TechWare fusion I run without a side panel. Two components have blown, and the case has modded feet for GPU airflow. System temperatures have never been a problem.