Have worked with Prime95 before. It's a tool for stress testing systems.
Have worked with Prime95 before. It's a tool for stress testing systems.
I recently started using Prime95 for a short period and felt quite uneasy. My H60 cooler is already showing some stress—seeing it in jet mode and the high temperatures reported by Task Manager made me nervous. I’m planning to try overclocking, but I want to make sure I’m doing it safely. I ran it at its default speed and immediately noticed the fan reaching maximum speed. After a few minutes, the temps peaked at 77°C, which is quite high. I ended up closing Task Manager before anything worse happened. Can you share your experience with Prime95? Were you concerned or did you have any advice?
Prime95 is designed to push your CPU to its limits, which is why it's called a stress test. You need to turn off the test manually in Prime95 so it stops working. I use it to check CPU performance when setting up a build for someone, ensuring the thermal design is solid. If you reach 77°C, it’s fine. That temperature looks acceptable for the cooler on the 4770k. There’s some room for overclocking, but I wouldn’t go that far. Are you using the original paste from the H60?
You're asking if someone can confirm your belief about running PRIME95 on Haswell CPUs, since it might harm them.
Because you're using a Haswell CPU, avoid Prime95. Opt for Intel Extreme Tuning Utility instead. This advice is accurate.
What?! Yes, the thermal paste. I have to admit, I’m not sure how to spread it properly, so I usually buy pre-applied coolers. Of course, I know the different methods—line, pea—but it doesn’t cover the whole CPU evenly, which means some cores might overheat.
I understand Prime95 can affect Haswell CPUs by raising voltage, so I should be careful. I just installed Intel Extreme and plan to run it. Do you have any instructions or guides? This is my first attempt, and I don’t want to cause any issues.
If you use the pea method, the heat will distribute evenly across the cores. After applying paste and cooling, I run a stress test on the CPU for roughly 30 minutes, then power it off briefly before restarting to check temperatures.
I’m ready to discuss the thermal paste topic. I’d love to hear your thoughts on disabling Prime95 manually. It’s possible it’s still active at 0_o.
It seems the program kept running even after you left it open. I mentioned you should manually stop it in the app before ending it, which is what I've always done. I haven't tried closing it from the app itself. If you restarted your system, it shouldn't be active at startup. You don't need to do anything else. Check out this video for more details: https://www.youtube.com/watch?v=-hNgFNH7zhQ