High temperatures at 3900x
High temperatures at 3900x
Regular post, understand? Stop trying to impress me too much. I tested three coolers and two pastes. Stock, Scythe Ninja 5, H100i V2, plus paste with Scythe Ninja 5 and Ceramique 2. From my earlier checks, Ceramique 2 performed better than MX-4.
According to Ryzen Master settings: CCD0 4.2ghz, CCD1 4.0ghz, 1.1v core (core voltage set to 1.1v in BIOS). Temperatures were measured with HWinfo. Used Aida 64 CPU+FPU, Cinebench R20, and two simultaneous libx265 encodes at 1080p. Main runs were 10, slow, animation, CRF18.
Stock paste: 94c - 86c - 95c
Scythe Ninja 5: 83c - 73c - 84c (spikes up to 90c+ still happen a fair amount)
H100i V2: 99c - 91c - 99c
Scythe Ninja 5 paste: ~0.5c better than Ceramique 2.
I see others getting lower temps at higher voltages, so I’m a bit puzzled.
It stays consistent all the time at 1.1v. Don’t forget, the Scythe Ninja 5 doesn’t heat up at all and its temperature plummets to around 40°C when idle, almost instantly.
I notice temperatures often exceed 90°C during mine runs with NH-U12A (stock). 1.1V should significantly reduce those readings. In the hardware info, I see about 140W during stress tests and occasional spikes to around 95°C.
Manual settings showed increased temperatures, voltages, and reduced clock speeds. TDC was 90a, EDC 114a, average power 141.5w. Temp was 87.4°C; other tasks likely influenced the result.
It looks like lower voltage means higher current for the same power, which suggests a possible issue with the mounting or solder quality between the IHS and the die. From the Buildzoid video, I saw someone cooling a 3950X to around 90°C while it was running at 240W on an AIO unit.
What case and fan configuration are you using? During Cinebench R20 and Prime95 runs, temperatures stay below 73°C with fans under 900 RPM and the pump at full speed. The peak temps I've recorded are near 82°C during MMO sessions with 18 instances loading new data, especially after a long startup. These readings are similar to what I see with a 2700x setup. I haven't used a X570 motherboard yet, but I'm curious if it's due to my BIOS version or a particularly efficient chip.