My PCH temperature is fairly high, which concerns me. I'm used to everything else in my system being pretty chilly, usually around 28-30 C. The airflow is also really good. The *only* thing that gets hot is the PCH, and i don't understand why.-- Some Backround Info, Setup --
Intel Pentium G6400 4.0GHz (Lol, well... until i get my Rocket Lake chip)
MSI GTX 1070Ti Gaming X (Until i actually manage to find a 3080/3070, if ever...)
HyperX DDR4 32GB 3600Mhz XMP CL17 (4 x 8 GB)
Asus ROG Maximus XIII Hero (Z590)
Asus ROG Thor 850 Plat
Samsung 980 Pro M2. NVMe PCIe 4.0 500GB (installed in M2.2_2, cpu bound)
Noctua NF-A14 PWM (x6)-- Things i've tried --
- Updated Drivers. Updated ME FW. Updated BIOS.
- Inspected PCH heatsink and thermal pad and resit. No change.
- Removed M.2 NVMe drive and GPU. No significant change.
- Checked the PCH 1.8v VCCIN voltage, stable 1.8v.
- Made sure nothing is "overclocked", using XMP, or enhanced in any automatic way.
- Lowered VCCIO and VCCSA to 1.10v, since automatic was pushing both to 1.40 for some reason !! (CPU weak memory controller ?). No change.
** I need to mention i couldn't find the PCH Core Voltage, anywhere in the settings. No idea why.-- PCH Temperature --
PCH temperature starts at 35-38 C, during a cold boot. During the next 5 minutes it climbs and stabilizes at 56 - 62 C, while IDLING.
And that's with a system without GPU, or M.2 NVMe drive. Just the CPU and its iGPU which stay at 24 C, cooled by a Noctua NH-U12A. With a fully assembled system and under load it goes up to 70 - 80 C.
Now... The only thing i have not tried yet, is to completely remove the plastic ROG-logo cover, on top of the PCH, as it may be severely suffocating the heatsink, restricting the airflow towards it.
That would explain the temps under load, but i'm not sure if that explains the initial fast-climbing temperatures while idling. And honestly, without the cover the LEDs underneath it are blinding, so the Aura lighting needs to be completely disabled. Could this be a flawed design ?? I doubt.
I don't understand what's wrong. I've seen people reviewing this mothereboard, while reporting PCH idle temps at 35C and 55C under load. I know that right now, it's not gonna cause any sort of damage. I am however concerned about the longevity and a possible degredation over time, thinking that my PCH is at 75-80 C while gaming.
Sorry for the long post, had to make sure everythong's covered.
Any help would be appreciated 🙂-- HWInfo & HWMonitor -> 3 minutes after cold boot ---- Bios Monitor -> 10 minutes after cold boot --