- Oct 2, 2005
- 6,196
- 1
- 81
I obtained a Diamond HD4870 512MB via trade. Tried ocing to 815/925 so I could flash it to the Asus TOP BIOS. However the card doesn't want to run any higher then 800MHz without artifacting. Temps aren't bad, only 68c under load after putting Creamique on the core and the stock cooler fan at 40%.
I tried upping the vGPU in the BIOS and reflashing it, didn't seem to make a difference except raise the GPU load temps.
I was running the 8.11 RC1 drivers, then after it wouldn't overclock well I switched to the 8.10 finals. Still can't run past 800MHz without artifacting.
For testing, I'm using Overdrive to increase the clocks, GPU-Z to monitor the temps and fan speed, ATItool to scan for artifacts, and the OpenGL furry donut to put the GPU under load.
Any ideas at all? Is my card just a lemon?
I tried upping the vGPU in the BIOS and reflashing it, didn't seem to make a difference except raise the GPU load temps.
I was running the 8.11 RC1 drivers, then after it wouldn't overclock well I switched to the 8.10 finals. Still can't run past 800MHz without artifacting.
For testing, I'm using Overdrive to increase the clocks, GPU-Z to monitor the temps and fan speed, ATItool to scan for artifacts, and the OpenGL furry donut to put the GPU under load.
Any ideas at all? Is my card just a lemon?