Seller Note “Was working flawlessly until last week – It started crashing randomly on games (Crashing to desktop – Nvidia driver reset notification) now it crashes the entire PC only after a minute of use (green screen appears, sometimes black)”
Summary
- Lovely condition cosmetically, like new and happy to find an example without the usual 12v VRM short! 🙂
- Resistances
- Vcore – 2.5
- VMem – 65.9
- PEX – 297
- 5V – 1.87K
- 3.3V – 824
- 12V – PCI K++ PCI-E ~30M
- So, no short, but with that fault description I still expect a possible VRM issue, hopefully not a core issue
- Observations
- Card loads driver fine
- Appears stable for desktop use
- Exhibits VRel limits in all kinds of load even when the core isn’t working at 100%
- Subnautica seemed stable, but the core was only at 40% load and it was VRel limiting
- Kombuster HD did run for a few seconds and then crashed to a blank screen, later to recover fully to desktop about 10 seconds later
- The card feels quite hot, 70s for core and 80s for hotspot, but these aren’t abnormal readings
Next Steps
- At this stage, I would suspect an issue with the VCore VRM. Whilst it isn’t shorted, it might have a failing MOSFET and perhaps end up shorted with enough abuse
- Take the back off and check each VRM phase with an oscilloscope