Sounds like you simply have a bad cooling configuration in your case.
Eh, I wouldn't want to think so. I've 2 140mm intake fans in the front, 2 140mm exhaust in the top, another 120mm rear exhaust. All noctuas, btw. Thinking of stepping up to the industrial line, the 140mm 2000RPM series has some serious flow, but the racket would be phenomenal. Around twice as loud as the 1500RPM models, give or take.
You never answered what you ambient is. When everything's idle, what are your motherboard and CPU temps? How high is your room temp?
Guess I didn't! I don't have a good ambient thermometer, and it varies depending on temps outside and how much electrical stuff I've got running. Mainboard temp sensor says 39C according to HWMonitor, CPU package 69-70C. Case fans and CPU cooler rock bottom RPM or completely off.
If the GPUs are Crossfire'd, are they still clocking down core and mem?
The bottom GPU throttles down to about 950MHz when it hits 94C while folding.
Top GPU doesn't throttle, it stays at about 85C. Bottom GPU might run a bit hotter than it should because of a slightly bad fan on it (sticky bearing.)
Grall, just for background which air cooler are you using with the 7900X?
Noctua NH-U14S with two fans strapped to it.
(so all cores hit the Turbo Boost 3 frequency that is 4.5GHz, some BIOS call this Multicore Enhancement)
Nah, I have that shit disabled.
Just RAM XMP profile activated, mesh upped from 24x to 28x multiplier. That's it. Oh, and BCLK raised 1MHz, because I get OCD ticks when my cores tick at 3990 instead of 4000MHz.
just mentioning because as Malo says the temps your hitting is very unusual if you are using one of the top air coolers (say equivalent to D15)
Yeah, well, mine isn't quite D15 caliber perhaps, but the D15 is ludicrously large. I dunno if it would even physically fit with the RAM modules and mobo/case I have. There really isn't much margin even with the smaller U14.
and voltages stay a fair bit below 1.25V and really no more than 1.20V if possible.
VID doesn't seem to go above 1.140V with my current setup. Right now, with all cores working at ~3.7GHz VID sits at 0.965V. (+0/-0.001V). It moves around though, depending on circumstances.
