Installed new GPU causing CPU overheating
Installed new GPU causing CPU overheating
Hello everyone, my old 980ti stopped working a few days back (refer to the post below). I swapped it out for a 4070ti, planning to replace my old i7-6700K later. Although I faced some performance issues with my previous CPU (lower than expected frame rates), I didn’t notice excessive heat. Now my CPU stays around 90°C while running Hunt Showdown at 1440p at 60 FPS. Valheim works fine except it caps at about 40 FPS. When I rest, temps hover near 55°C. I use a Corsair H100i GTX for GPU cooling and haven’t had any problems. Are these temperatures normal? The fans are really loud now. I think the GPU upgrade might be the cause, but I’m not sure why. Help T.T edit: Watching YouTube on Firefox reaches 80°C oO
It could be the GPU generating extra heat via its backplate. Or perhaps the CPU is working harder and struggling to match the performance of the 4070Ti. I’m not an expert, so I can’t offer more details.
You're experiencing a CPU bottleneck because your processor is running at full capacity while trying to handle the 4070 Ti graphics card. Upgrading your platform would be necessary. For 1080p, a good fit would be a 7800X3D, but at ultra-wide 1440p you'd likely need something like a 13600K or 7600.
I’m confused about how it gets warmer when you’re not actively using the GPU or CPU. I know it heats up more during intense tasks like games, but in normal use it stays cooler. The screenshots show temperature vs activity, which helps clarify this.
I’m not entirely clear on what you’re referring to. The CPU stays under 10% but reaches a minimum temperature of 55°C. When launching YouTube it warms up to 70, and during games it hits 90+. It makes sense for the game because the GPU is being strained, but I don’t understand why this happens when idle.
No one can assist me? T.T reaching 100C under low load. I looked into the water cooling system and the pipe leaving the CPU are hot; the return cone is cool, with the fans spinning at full speed. I think everything is working correctly.
In fact, many helpful people have already attempted to assist you... though it seems you didn’t review the instructions before reaching out. (I’ll note that you should share your build details completely.) Since you’ve mentioned using water cooling for your CPU, it’s clear your pump isn’t circulating much coolant through the system. The CPU shouldn’t reach 100°C even with low usage—usually around 35%—on a properly cooled setup. This suggests the pump speed might be too low or there could be a partial blockage. You didn’t mention it, but it’s possible the exhaust air from the radiator isn’t getting warm enough. Please review the points above and reply with your questions, then provide the needed information so I can help more effectively.
-You didn't mention it, but I'm guessing the exit air coming off the fans from the radiator isn't really very warm is it? → Indeed it is pretty cool. -The CPU should NOT be 100 C with barley 35% usage most of the time on a water-cooled setup →This is what was puzzling me. -I don't know if it's the pump speed is much too low, a partial blockage or what →When you said partial blockage, and since I had not run my pc in 2-3 weeks since my gpu died, I thought maybe something might have build up in it (be using it for 7 years) and started to clog the tube due to me not using it for such a long time (as really, it didnt make sense that me changing the gpu would impact the cpu in such a way). So while I could already feel water moving in the pipes, I did give them small taps nontheless while they were running. And tadaaa, and immediately heard the sound of something moving inside it. And as I was hearing that the cpu temps started to cool down, white the air coming out of the fans getting warmer. I tried to run hunt, and the cpu was at a constant 65 degrees. So that was it. The water cooler was just clogged a bit due to not being used for a while. Thank you for your help everyone.