02-03-2022 06:52 PM - last edited on 03-05-2024 12:30 AM by ROGBot
02-03-2022 07:33 PM
02-04-2022 08:04 AM
toby12f wrote:
Edit: MemTest86 passed with 0 errors.
toby12f wrote:
I was told to use that to test stability. If it crashes after 15 minutes in Prime, doesn’t that make it unstable and likely to crash on normal use? If I am wrong please correct me and I will use it and see.
02-05-2022 01:42 AM
Chainbold wrote:
You are not wrong. If P95 is crashing your system or producing errors, your system is not stable, even if it does run less demanding applications or games for a while. If you can't run P95, it is just a matter of time that the system will hang or crash with other applications as well. I think the mentioned 15 minutes are the minimum time to run P95. Many ppl are deluding themselves about system stability. An alternative for testing is Intel's XTU test and oc utility. It allows to test the CPU and the RAM separately, in stages. XTU however is running the same tasks as P95.
02-05-2022 04:47 PM
Silent Scone@ROG wrote:
Hello,
This philosophy is so outdated now that it's borderline flat-out incorrect. So much so that by leading users up this path you're potentially impeding their overclocking potential for no good reason. Unless it was built to run Prime. By endorsing this method other people will always be able to clock higher than you and be as stable as they need to be.
Remember, no overclock is ever 100% stable - that's something some users fail to wrap their heads around. For some reason, there are still Pro-Prime camps of users who like to subject their CPUs to copious amounts current that otherwise, their normal workload won't ever see. Depending on the workload, all you are doing is impeding your own overclocking range in real-world tasks. The fact Intel quickly acknowledged this by implementing the AVX offset function speaks volumes.
Even with all that aside, as far as stress testing memory is concerned there are far better tests than running large FFT (or small) Prime that isolate the memory subsystem. I and others in-house haven't used Prime to test stability since Haswell-E and use our systems crash-free on a daily basis. Of course, what you choose to take away from that depends on your mindset.
02-05-2022 07:19 PM
Silent Scone@ROG wrote:
Hello,
This philosophy is so outdated now that it's borderline flat-out incorrect. So much so that by leading users up this path you're potentially impeding their overclocking potential for no good reason. Unless it was built to run Prime. By endorsing this method other people will always be able to clock higher than you and be as stable as they need to be.
Silent Scone@ROG wrote:
The fact Intel quickly acknowledged this by implementing the AVX offset function speaks volumes.
Silent Scone@ROG wrote:
Of course, what you choose to take away from that depends on your mindset.
rjbarker wrote:
Looping R23 for an hour...Realbench...IXTU ...and some Memory tests ....is fine and will catch instability pretty quick.
02-05-2022 07:34 PM
Chainbold wrote:
I disagree. 🙂 Part of the oc community was always over-optimism and self delusion. Each to its own. Intel itself is using P95 for their overclocking and stressing utility. They know why.
There are of course different ways to test stability, even with a hardcore utility like P95 - depending on the purpose of your system and the stability level you want to achieve. And there is no doubt that P95 (or similar y-cruncher) in particular running with AVX-512 enabled is stressing the system in a way that is far above regular usage. If you want to go soft with P95, disable AVX instructions and run small FFT. But one thing is for sure: No matter how "soft" you intend to test your system, if the P95 blend test is producing errors, freezes, or crashes after only a few minutes running (with AVX instructions disabled) it is 100% for sure you are not stable and will eventually crash. It's a guaranteed event - and telling users here a different story is only creating unrealistic expectations and eventually frustration.
Also, as I said before: A passed Memtest is not indicating system stability under OS conditions. It only shows that that memory is running fault free under the given frequency and timings. E.g. Memtest is running my DDR5 at 6000MHz 32-32-32 for hours. If I run the P95 memory test I get errors within a few minutes. And I suppose this is the reason why, for example, when gaming I got occasional freezing or crashes with the memory at 6000MHz.
AVX instructions have been implemented more than 10 years ago, with Sandy Bridge. They are used by many applications. If you want to test without AVX instructions because you think they are stressing your system too much, you can run P95 or Intel XTU without them.
Exactly.
For real, hard core overlocking, testing and validating see here, how they tested:
https://www.igorslab.de/en/supercool-computers-direct-the-water-block-and-delid-tool-for-alder-lake/...
They used y-cruncher with AVX-512 enabled. Their target was to demonstrate highest possible CPU frequency with the with the direct-die waterblock. They got the 12900 up to 5.5 GHz. For bragging, they certainly could have shown a higher value with a softer stability test.
02-05-2022 08:07 PM
Jimbo93 wrote:
I do occasional important work on my system, I cant afford corruption of any kind when I do. If I cant get good reliability scores in windows the system maybe cannot do what I need when I need it. But I can certainly see people with gaming systems that do not need that.