I7 4790K overheating?
I7 4790K overheating?
At 80°C it should operate at full capacity, which would prompt me to consider upgrading with an air cooler such as the CRYORIG H7 Tower Cooler priced at 34.99.
Andy6602 :
The Paladin :
I laid the computer on its side and started the PC, checking if the cooler fan operates properly. It seems the fan isn’t spinning at all. If that’s the case, I should verify the connection to the main board—possibly a loose plug or faulty connector might be the issue. So far, all cables and pins are secure, but it still gets hot. Can you confirm if the fan is actually running?
i just checked and everything looks correct, yet it keeps getting warm. Does the cooler’s fan speed increase when it hits 99°C compared to 30°C?
lodders :
Hello,
my system is overheating rapidly, reaching 99°C in under three minutes. I’m not sure what’s causing it—I’ve re-applied the thermal paste before, but the problem persists. I’m using the original cooler and haven’t overclocked. I recently had an electrical issue (about six months ago) where I lost power while using the PC. After the power came back, the temperature dropped to around 70°C during idle, but it recovered within a couple of weeks. Could this incident be connected? Might losing power have affected my CPU’s health?
On another note, I was considering replacing the cooler and found that many recommend the Cooler Master Hyper T4 for an i7 4790k. Is that still a solid choice?
An i7 is quite powerful, and most tasks don’t push it to its maximum capacity... For everyday activities like browsing, file copying, photo editing, or video viewing, your CPU should stay at around 10% usage with low temperatures. If you’re gaming, expect it to run between 50-70%, which could cause it to get hotter—around 75°C is acceptable but not ideal.
If you’re working on video editing, encoding, or 3D rendering, your CPU would likely hit 100% power and quickly reach temperatures near 100°C, which is problematic. With the stock cooler, short bursts are fine, but prolonged use could damage it. If this isn’t improving, either the CPU might be damaged internally or the cooler isn’t fitting properly—checking the motherboard back is a good idea.
A better cooler would definitely help lower temperatures. A quality aftermarket unit can reduce temps from 70°C to about 50°C, allowing you to run at full power or even overclock safely. The more you invest in cooling, the more freedom you have to push performance.
If your CPU appears to be damaged, replacing it might be necessary. As a final option, you could try removing the case as suggested earlier—just ensure you rule out the cooler issue first.