For PTM to perform its best, the surface of the die and waterblock have to stay above 45c for a while, so it can fully melt and thin out. The thinner the bond-line, the better it performs. If the avg GPU temp is 45-50c, that's measured inside the silicon, meaning the external temp and surface of the block are cooler. I'm not sure how much of a temp delta there is between the internal silicon and the block, but I would imagine the block is closer to the temp of your water, once it has heatsoaked. So I'm not sure PTM is the best choice for water cooling. Obviously you could turn the fans and pump way down and let it cook, but idk if it's a good idea to let the water get to 40-45c.
I think Thermal Gryzzly Kryosheet would be a better solution than PTM here because of the temperature required for PTM to start working as intended. Just my 2 cents!
If its a driver crash Wattman will reset, not much to do about it i think.
Yeah, that reset from driver crash is super disappointing. Does anyone know of a way to apply the OC when a driver crash happens from task scheduler or something?
I would also suggest the Kryosheet due the facts already explained. And I'd recommend you to protect the SMD capacitors around the die with some lacquer/varnish/nailpolish/conformal coating since the Kryosheet is conductive.
Read out with which tool ? Or which hardware modification? Elmorslab EVC ?
I applied some PTM7950 to my 6900XT just the other day, pretty pleased with the result. GPU/Hotspot delta @460W was 22° when freshly applied, seems to improve further, as it's 20° now, with hotspot maxing out @80°. Room temperature 27°.
That's with a water block? Have you tried turning the fans and pump down while running a stress test / benchmark loop for a while? It may have further room for improvement.
ASRock Extreme vBIOS and EVC2. I'd halved the Igain with EVC and GPU-Z was reading something around 420...440W.
Yes, Bykski WB and no, haven't played with lower fan/pump speeds 'till now, but sure plan to do so in a few days when no further change in temperatures is observable.
I've tried. Actually that's quite clever way to reduce energy usage (if that's the goal) but you might get more stable results. Occassionally the GPU needs more peak power and if you've severely limited the voltage/power, it could result in stuttering for example. 6900XT was notorious for both, taking huge current spikes (like double the average) and stuttering. 7000-series seem to be a little easier in this.
Thanks everyone! Kryosheet it is then!
You also play warzone with a 1090mv? Btw what drivers u are running.
Yeap. Warzone with ultra settings. For 260-330fps. (240hz monitor 1440p) running the newest amd adrenalin driver đź‘Ť
