I've got an R7 5800X running way hotter than it should with my Arctic Liquid Freezer III 360 cooler. Under load, I'm hitting temps around 85-87°C while compiling shaders or running Cinebench. Even light gaming pushes the temperatures up to 60-70°C. I'm seeing temp spikes while just browsing, jumping from 40-65°C all over the place. I previously used an Arctic Freezer Duo 34 air cooler, and switching to the liquid cooler only dropped my temps by about 5-6°C.
Right now, the radiator is mounted on top of my Antec C8 case as an exhaust, and I have 6 intake fans along with one rear exhaust fan. I'm using thermal paste from Thermal Grizzly, possibly Kryonaut or Hydronaut, but I can't confirm. Another PC with an R7 5700X using the same air cooler maxes out at 65°C under 100% load and averages 55°C while gaming.
My CPU tends to run hot; I'm unsure if it's due to the 105W power or something else. I've locked the fans manually at 30% or 100%, but it only makes a 3-4°C difference. The CPU isn't overclocked, and I'm using a Gigabyte AORUS B550 motherboard. Notably, there are no hotspots, and the temps are consistent across cores.
Could this be a sign of a bad unit or perhaps improper mounting? Here are my full specs:
- Gigabyte B550 AORUS Pro AC
- Ryzen 7 5800X
- 2x16 DDR4 3200MHz CL16
- Samsung 980 2TB SSD
- Crucial P1 2TB SSD
- Windows 10 Pro
- Thermaltake GF3 850W
- RTX 5070 Ti
- Antec C8 case
- 6 Arctic P12 120mm intake fans
- 1 Arctic P14 140mm exhaust fan
4 Answers
Having 6 intake fans seems excessive and could disrupt airflow. Maybe consider reversing some of those top fans to exhaust, and see if that helps with the cooling. It's just a thought!
Make sure to connect your AIO pump to the CPU fan header instead of a regular fan header. This could help improve the cooling performance by ensuring the pump runs optimally and effectively cools the CPU.
The 5800X does tend to run hotter than other CPUs, and these temperatures can be considered normal. You might want to look in your BIOS for an ECO mode setting, which could help manage your temps better and mimic the performance of a 5700X.
Your pump might be working, but could also have a bad connection or thermal paste issue. Those temps are surprisingly high for an AIO cooler. Maybe check how it's seated! If it’s seated wrong, it can make a huge difference.
I plan on checking that soon. I've already ordered new thermal paste to try a remount.
I think you missed that the radiator is already set as exhaust. Balancing intake and exhaust might be more crucial here.