Been a little bit out of the game with AMD CPUs. I currently have the following components cobbled together:
AMD Ryzen R9 3900X @ 4.3GHz (PBO disabled), 1.3v
ASUS Crosshair VIII Hero Wi-Fi (latest BIOS 1001)
G.Skill TridentZ Neo 3600MHz @ 14-15-15-35 1.4v
EVGA GTX 1080 TI FTW3 (Stock)
Corsair H150i Pro
The issue I am seeing is that under stock temps, even at 1.3v, I am approaching 40c, and under load (Cinebench R20) I am seeing temps max out around 85c. I've yet to have stability issues with this chip (so far so good) but am afraid to run it through P95 at this point. My tests so far include Cinebench, some various X264 encoding tests, and a 3-4 hour streaming session @ 1080P/60 Slow Preset.
I've removed the cooler, reapplied thermal paste, and replaced it. Cleaned it with artic cleaner and used the purifier. Paste is Arctic MX-4.
The thermal limit is 95c on these chips (from AMD site). JayzTwoCents posted a video on some of the voltages being a problem (
) and to be fair, the AUTO setting for CPU voltage was indeed too high, and Cinebench shot it up into the 100s for temperature, so I've clearly reduced that from the 1.475 the motherboard gave it.
I am going to take pictures of the BIOS settings to see if anything sticks out as me missing something. I asked other owners locally, and they said they'd expect 75c under load, but I'm exceeding that obviously.