The unusually high temperatures might indicate a problem with your CPU.
The unusually high temperatures might indicate a problem with your CPU.
I own an unusual setup, purchasing a refurbished R7 5800X that functions adequately despite some initial issues. The cooling solutions I use don’t seem to affect its thermal performance much. Switching to an Arctic Liquid Freezer II 240 didn’t improve the situation; it still reaches high temperatures quickly under load. This limitation likely impacts its performance gains. Could there have been unauthorized modifications before it was returned, affecting its thermal management?
Refurbished options can cut costs but often come with risks. I tend to avoid liquid cooling too much. How much thermal paste did you apply to the CPU surface? On my 5900X I used just a few small dots in the center of the mast triangle area and there was almost no extra. Is the cooler securely fastened against the CPU cover? Have you cleared all air from the cooling system? These are common issues, particularly with liquid setups. Check your hoses and lines—any spots that feel warmer or cooler might signal a leak or blockage. Also, what type of case do you have? If it can’t provide enough airflow, no amount of tweaking will solve it.
Edited September 26, 2022 by An0maly_76
Revised, more info
I mostly used the tube with a large dot in the middle of the IHS. It usually gave me a good range. I tightened it fairly well, then gave it a solid twist with my hands and a bit more with the screwdriver. I’m hoping over-torquing won’t cause problems since it’s an AIO—air can’t really escape. The case is fully taken apart now, which helps with airflow. I also tried reattaching the previous cooler twice, but it didn’t make much difference in temperature.
170W PPT seems quite high for a 5800X, it makes sense that it's heating up quickly. Did you adjust the power limits or OC/PBO? With my 5900X at similar PPT, I reach around 85°C+, using a larger 280 rad and a DC pump plus reservoir.
The 5800X performs well at high temperatures. I experienced similar results with 90+C. The most effective settings were a negative 0.1V core voltage offset plus PBO Curve Optimizer at -20(milage may vary). This lowered the temps from over 90°C to around 75°C during Cinebench without affecting performance. This was achieved using an air cooler.
It's now reaching 170W PPT and it remains under 90 degrees, though it's only slightly—still a big improvement. I had to closely examine the diagram and figure out my mistake.