Can I use 85°C fine for CPU overclocking?
Can I use 85°C fine for CPU overclocking?
4745454b :
Is it really stable though? Prime will hit your CPU to 100%. Some other test that only goes to 95 or 98% to keep the temps down wouldn't be "stable" in my book. If your system stays cool and stable running Prime, then you are set to run that. Being able to eek out a few more MHz because you tested with some other program don't work in my book. Your book might have other pages though.
Is this mission critical work data? Is this an enterprise system? Does it deal with ballistic defense where the fate of thewworld hinges on the slightest bit of instability? You can say whatever you want about "pages from books" but this is stability in gaming and gaming is not a CPU heavy task.
I have not run Prime95 as a stress test on my rig I have not had any crashes after I got it stable with XTU and Aida64. Those test will push your CPU to 100% load. My temps have also never gone to 95C. I game all the time and I cant remember the last time I had a crash. The point is, there is another way to do it than running your chip through marathon when it just needs to make it 100 meters.
Additionally, this is an i3 here. It is a budget CPU. Most people with budget CPUs are on a budget and cant afford to burn them up. So you can argue about stability till the cows come home, but what is the of stability if you fry your chip in the process.
And that's the point we have. If you're aiming to configure your system exclusively for gaming, then go ahead. I need to be certain my CPU is ready to handle anything I throw at it—not just games. As someone else mentioned in this thread, if you want to avoid running the toughest tests possible, that’s up to you. I chose the most demanding program to push my CPU to its limits. This ensures the settings I set will function reliably across all scenarios. Stabilizing your OC for gaming only, rather than the worst-case scenario, is something you’re clearly okay with, but I’m not. That’s why I said your guide has different sections. During stress tests, I see no issue using the most challenging application. And I wouldn’t criticize anyone for using popular programs that are known to cause problems.
The OPs inquiry concerned safe CPU temperatures during gaming sessions It seems your requirements for the CPU might vary from those of the OPs The user asked whether it’s possible to harm their CPU at elevated temperatures while running Prime95 Below are some initial links related to discussions about Prime95 and potential CPU damage http://www.overclock.net/t/1271904/is-it...rime-95/10 https://www.youtube.com/watch?v=08osQvvMEdc http://www.overclockers.com/forums/showt...U-s-health https://hardforum.com/threads/can-i-dama...5.1858117/ https://mersenneforum.org/showthread.php?t=19461 https://rog.asus.com/articles/overclocki...30k-5820k/ These are just the first few results when searching for Prime95 and CPU health. I wouldn’t recommend using Prime95, particularly for someone new to overclocking who wants to protect their CPU.
Yes, you can harm your CPU through an overzealous OC that pushes it too far and stress tests it. That's why it's important to adjust gradually. But if you don't thoroughly test it, you might not realize its stability or performance under consistent conditions.
Thank you USAF. I believe if I search for any overly demanding program, I’ll find evidence of people who pushed too hard and damaged their setup. That’s why I “stress test” with something more manageable and achieve a high OC. What happens when he begins using a program that reaches 100% load? Or when he tries something that challenges more than his OC can handle? For me, my system needs to be ready for anything. I don’t want my OC setup to fail at the next game update or BSoD. If Prime is known to push unrealistic limits, then that’s exactly what I want to test. Because only then will I truly know my system can handle anything.
The door can open in either direction.
But hey, you could use a blow torch on your CPU just to confirm it can handle anything. (by the way, don't you worry about capitalizing certain words—most forums consider it rude)
This is just a traditional debate. There are many other programs available to push your CPU to its limits.
Not quite. I've said over and over that we might not agree. You seem bound and determined to get me to say I agree that Prime95 will fry your chip. If that was really the case, it would have been removed ages ago. No one but trolls would host the program on their site. Word would have been around everywhere that it's dangerous to run it. But that hasn't happened because it's not something that will kill your PC, it's something that can kill it if you don't know what you are doing or have your settings bad/wrong. I and another person have said there is nothing wrong with testing your PC with Prime. If you choose to test with something else that's your call and ok with you. If you want it game stable then go for it. Nothing wrong with that.
Oh, I'm sorry. I didn't know you set the rules here. I thought I was a mod here. My mistake. TALKING IN ALL CAPS LIKE THIS IS SHOUTING AND RUDE. Yes, even on this forum. CAPITALIZING one word to emphasize something isn't rude. Heck, We Even Have People Who Talk Like This And Get Away With It. (I personally find it dumb, but it's not something we sanction on.) Do NOT even think of playing mod. Again, we need to move along. Your point is made and I hope mine is as well.
Correct, but the problem with shooting for the limit is you don't know when you cross it. Is it running 100C all the time, or is it throttling down to 100C? You can check your clock rates, but who has time for that? Personally I find it more useful to shoot for something lower than the max. Knowing you don't cross the max while testing is a good thing to know.
I believe our "frog" is missing the whole point. Let me clarify things for you. First, you're not a moderator, so you aren't allowed to create rules or oversee moderation staff. If you're not happy with that, you can reach out to a member of the forum's community team. Otherwise, you can relax and pretend you're part of the group, or leave.
Second, Prime95 version 26.6 stands out among very few programs (or those using parts of Prime95 without Linpack, x264 encoding, or AVX instructions) because it consistently delivers a steady-state workload. Unlike other tools that peak at 110% and aren't ideal for CPU thermal analysis, Prime95 remains stable under continuous load. The OCCT tool combines Linpack and Prime95 but stops the CPU tests once temperatures hit 85°C.
I’m not certain what other tools exist beyond those mentioned—those suitable for thermal testing, but lacking in stability verification. However, I’m not aware of any besides the ones listed, which are adequate for thermal checks but not for comprehensive stability assessments. Those familiar with CPU architecture (especially engineers at AMD or Intel) know Prime95 is the gold standard for this purpose.
Prime95 delivers a 100% workload. It doesn’t just hit 110% or 115%; it fully utilizes the hardware as designed. If it fails to do so without errors, instability is likely. If it exceeds thermal limits, voltage issues arise. If you can't maintain stability within safe temperatures, then the chip isn't handling what you expect.
Running a program that doesn’t demand full load is essentially rewarding yourself for nothing. You’ve shown no real progress. You’ve avoided any risk of overheating. But if you haven’t tested Prime95 for 24 hours, you haven’t confirmed there’s no silent data corruption—what’s most important is ensuring the system remains stable under normal operation.
The goal of stability testing isn’t just to catch obvious crashes or blue screens. It’s about preventing silent data corruption that occurs when a processor is overclocked beyond its safe limits. This can lead to micro-errors and bit flips, which accumulate over time in operating systems and game files. These issues eventually result in the very problems you’re trying to avoid—crashes, blue screens, and other errors.
Moreover, no CPU has ever been damaged by Prime95 because the system either throttles or shuts down before reaching dangerous temperatures. If thermal damage could occur from using a utility, then most non-prime tools would be far riskier than Prime95. The exception is some utilities like AIDA64, which fall short of 100% workload and are unreliable.
The claim that only gameplay matters if the CPU isn’t fully stable is incorrect. Silent data corruption will still happen, regardless of how much you overclock. It’s a fundamental risk that can't be ignored.
Furthermore, no CPU has ever been harmed by Prime95. If it could, then most other testing tools would be dangerously inaccurate. The real danger lies in the fact that even short-term testing doesn’t guarantee stability across all workloads.
In any scenario—whether you’re using it for gaming or scientific work—silent data corruption will eventually manifest as crashes, blue screens, or other failures. You should run Prime95 for at least 24 hours to ensure no such issues arise.
For more details on this topic, check out the link provided:
http://www.overclockers.com/forums/showt...ty-Testing
To address Op’s comments, the recommended target is 70°C. Staying within that range after proper thermal stress testing is ideal. Exceeding it isn’t a concern; it simply means you’re close to the upper limit. The goal remains consistent—avoiding temperatures near 80°C. Most games perform well around 75% of the tested thermal limits, so aiming for the mid-50s under stress is typical. If you reach the higher end, it’s still manageable without needing extreme measures like a room heater.