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post #1 of (permalink) Old 03-11-2019, 04:55 AM - Thread Starter
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Stability Testing in 2019 - The RIGHT Way!

Hi all,

So I have been working to get a stable 4.4Ghz on my i9 9820X on all cores with HT ON. No AVX offset either. Years ago I had Q6600's, QX9650's, E8600, i7 950's etc and back then it seemed that stability testing a system was much much easier. Of course you'd just open Prime95, run some small FFT's for a couple of hours, then maybe some Linpack/IBT and if all checks out, you'd proceed to run a Prime95 Blend for between 12-24hrs.

However the years have gone by, additional 'stress testing' tools are available, everyone has their favourite, and experiences good & bad to back that up.... And of course we have new instruction sets in the form of AVX/2/512/FMA3/4.

Upon a quick google on overclocking and stability testing, it looks to me as if there is way too many one sided opinions on what someone should use, and why something else is useless. My personal favourite has always been prime95 as I know if I can pass a full loop of all its FFT's, then im pretty sure my system is stable, if I then crashed in a game, a slight voltage bumb should resolve that.

But this outlook and logic highlights something that in my opinion is the only way to test for stability in 2019.

You MUST use a variety of workloads.

There are many of us out there that will swear by a 12 hour Prime95 SmallFFT session, or a single Prime95 1344k FFT session, or maybe even the full FFT loop over the course of 24 hours. Then there are those that swear by 10 hours of AIDA64, or 100 passes or IBT, 10 Linpack passes etc.....

In my own experience however now, in 2019. NONE of these programs on their own, no matter for what length of time will guarantee total stability. I have run hours of P95, hours of AIDA, only to fail realbench within 30 mins or vice versa. Its well proven, from both my own experience and others via google, that no single program is a mark of true stability.

So heres what I have run and successfully passed, which I am using to call my system stable. All in all, this selection here, plus the idle time at the end of each when you are AFK, plus the reboots, plus any voltage tweaks comes to about 48hrs or 2 days worth of stability testing.

I think that due to the variety in this regime, at the end of the process you could probably safely say your system is stable, period. Whereas any of these on their own, will NOT give you grounds to call your system stable.

In no particular order, besides making sense to run the quicker tests first:

10 Loops ASUS Realbench BENCHMARK MODE
1hr Prime95 CUSTOM 1344K FFT IN-PLACE
2.5hrs Prime95 SmallFFT AVX/FMA3 Enabled (complete loop of all the smallFFT sizes)
1 x Heaven Benchmark run
1 x 3DMark Firestrike run
1 x 3DMark Timespy run
1 x Cinebench CPU + OpenGL run
1 x HWBot x265 4k run
8 Hours AIDA64 Stability Test CPU,FPU,CACHE,MEMORY
Pime95 CUSTOM 8-4096kFFT 5Mins per FFT Size IN-PLACE AVX ENABLED (complete loop of all FFT sizes)

Going through this process I had failures and had to do a couple of minor voltage tweaks. This just reinforces the need to add variety into your testing method. I did leave memtest86+ off this list on purpose, mainly because its a specialist memory diagnostic tool, but it may also be worth running a few passes overnight to make sure your RAM is happy, especially if you are experiencing random crashes/freezes and can't seem to eliminate them via voltage increases or clock speed drops. Could well be due to bad RAM which memtest86+ will highlight.

Anyhow, Im happy based on the above that my system is stable, even before I go and play any games etc...

Just thought I'd share this list here for those that are having trouble with all the mis-information out there on this subject.

There is no shortcut to stability.


(13 items)
Intel Core i9 9820X @ 4.5Ghz (1.253v NO AVX OFFSET)
ASUS X299 TUF Mark 2
2 x ASUS 2080Ti TURBO (Blower, NON-A)
32GB Corsair Vengeance LPX 3000Mhz (4 x 8GB)
Hard Drive
1TB Samsung 970 EVO PLUS NVMe SSD
Power Supply
Corsair HX1200 1200W
Corsair H150i Pro (Corsair ML120's push/pull)
Fractal Design Define S Windowed
Operating System
Windows 10 Pro
Acer Predator XB271HU 165Hz GSYNC 1440P
Corsair K70 MXRed
Razer Deathadder Elite
Schiit 2Uber Stack + Beyerdynamic DT1770
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Last edited by The_Rocker; 03-11-2019 at 05:35 AM.
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