How to check FAH stability after undervolting?

[EL_HAM]

- I was aiming for 725 mV to maximize efficiency.
- I was able to get 2100 MHz target limit (around a similar stable limit from a famous overclocker guide affiliated with MSI)
- Checked OCCT with steady extreme for 1 hour with no errors (add even more clock and a single error exists, more clock, more errors, too high and it will crash/reset immediately, this was basically the highest stable), reality clock around 2092 MHz and 725 or occasionally 730 mV, temp is quite good, 50-ish GPU and 60-ish VRAM.
- Tried game GOWR half the entire story on max (a few dozen hours), no issue.
- Tried FAH, 3 different projects (18263, 18245, and 15223), all 10 WU completed, no error or issue.
- But there's another 4 WU from a single project (15225) that keeps getting automatically dumped around 60-ish % completion (a few percent difference), now I don't see it again in the Projects tab. Is it bad WU? I did not check on the stock GPU config because I left it overnight.
- I foolishly deleted that username/account and started a new one with an even more conservative target of 1972 MHz (reality 1965 MHz) after much consideration, all the same three project successes (total 6, one almost done), I don't get any 15225 project, nor see it in the Projects tab.
Everything indicates that it wasn't undervolting instability that caused the dumped WUs.

Or maybe it's 50:50 that the project WU was the issue for some reason? If not,
Is FAHBench version 2.3.1 (latest from website) with 2017 file creation date any useful for the current core/engine?
- There's only OpenCL (0x21 core), no CUDA, which was used in the latest core (0x27)
- Three WU options (dihydrofolate reductase or dhfr, dihydrofolate reductase implicit or dhfr-implicit, and voltage-gated sodium channel or nav), the first two "common system for benchmarking molecular dynamics" and the latter "a large, membrane-bound ion channel system").
- Two precision, single and double.
- Accuracy check options, NAN check increment 10 checks, and runtime with 1-minute increment options.
If the WU wasn't the issue and this benchmark is still relevant, any suggestion on which option I should use?
Check every WU with each single and double-precision (GPU supports two different modes), but it seems too excessive and time consuming, accuracy check enabled, NaN check 10 is enough?, and runtime 15 minutes or I should set it to 1 hour?

Thanks!

CPU = Ryzen 7 8845HS (FAH only set to RTX 5060 Ti active so mostly idle), LPDDR5-7500, ReBar disabled (limited BIOS option though above 4G decode enabled by default)
OS = Windows 11 Pro 24H2, VBS disabled.
GPU = RTX 5060 Ti 16GB, driver 581.80 WHQL
eGPU dock = ADT-Link F43SG (running at PCIe 4.0 x4), never had fatal PCIe errors reported by HWiNFO or any crashes during usage.

[Joe_H]

Generally about the best stress test for F@h is F@h. The ones you mention pretty much will not test your video card the same. Updates for FAHBench have been requested, but the person who developed it is no longer around as far as I know. No one else has picked it up so far except for some unofficial mods to use later folding cores.

Try bumping up the voltage a small amount, others have reported seeing what looked like a stable under voltage with some projects not work with others and then work okay on those with a slightly higher voltage.

You may want to read this about ReBar being disabled - viewtopic.php?p=371752#p371752. They found folding worked better with it enabled.

You can check individual WUs to see if they have a history of failing, that would be the WU Status app from this page - https://apps.foldingathome.org.

As for Project 15225, it is still listed on the Project Summary page, available on the same page of apps.

[EL_HAM]

Thanks for your answer, that app status link really useful, and I have done something that basically increased the voltage from 700 to 725 mV, but I had to wait for Project 15225 to test and hope it going to be stable.
Unfortunately, I had no option to enable ReBar, but I'm fine with some performance loss (it's not like I had a choice).