Is it possible to know how many factors are found during challenge?

Possible, yes. Practical, no.

That information is not stored in any database. Someone would need to write a program to read every result file (nearly a million of them) that was returned during the challenge. But that's not enough, since many candidates may have previously been eliminated by other factors. All those factors would need to be compared to what's already in the database to eliminate those where the candidate was eliminated previously.

BUT WAIT!!!

The database already has all of the challenge's factor records, so ALL of them will register as "already found".

So you would have to, on another system, load up a database backup from before the challenge started, and compare all the factors against that database. It still wouldn't be exact because this database would be missing factors found between the time of the backup and the time the challenge started, but this would be the best that's possible.

All of this would need to happen before the challenge cleanup is done and the challenge tasks are purged.

It's a lot of work even if you don't care about the old factors, and a whole lot more if you do. Good luck convincing someone that this is worth doing.

Simple no will be sufficient.

When I was using TThrottle for GPU temp control, I found that it didn't work well or at all on the higher GFN's as it couldn't limit the CPU worker enough to keep the temps down. I found MSI Afterburners controls worked much better.

I delinked the power limit and temp limits, limited the temp, set priority to temp limit and it worked perfectly. My experience with this is on a GTX 770. Doesn't work for my GTX650 (too old) and 1660 (the newer ones Afterburner can't temp limit for some reason).

Are you using the latest version of AfterBurner? I'm using ver 4.6.2 on all of my Windows pc's and just checked and my Nvidia 760's have the power and temp limits linked, earlier versions did not have that link on my older cards either. I do not know how to delink them though as you said you do.

I use it more to monitor the temps for the different Projects and do crank up the fan if the temp rises more than I want it too.

PPS-MEGA at 4 cores is closer to 50% rate so I wonder if those with more cores on hand are running that, never mind scaling efficiency.

I'm still getting 64% first rate on PPS-MEGA with only 2x cores. This may demonstrate either luck or differences in hardware. I haven't tried with 1 core. I did a few with 4 cores a few days ago and from memory, 1st rate was closer to 75%.

1st rate isn't static. I can think of two big reasons, and no doubt there will be many others. 1 is simply luck. With relatively small sample sizes that could swing the numbers either way. The 2nd is it depends on what everyone else is doing at the time. Maybe I picked a worse time.

Edit: I thought I had moved all my systems away from MEGA, but it seems I left a system running 3 cores on it, currently indicating 67% 1st rate. My PPSE rate is below 50% on two systems though... doesn't stay constant!

PPS-MEGA at 4 cores is closer to 50% rate so I wonder if those with more cores on hand are running that, never mind scaling efficiency.

For comps like this one, what % of first's should you be looking for?
I'm guessing its a bit subjective because more 1st's might come at a cost of throughput right?

Is there a "magic" number? More than 50% 1st's is ok I guess?

I've set up a whole system to determine what my best thread settings are. But a good rule-of-thumb seems to be that if your PPSE WUs are taking over 700 seconds, you might need more threads per WU. If under 400 seconds, maybe less threads.

Edit: Or maybe my computers are just slow. ;)

My GFN 17 Low is only producing 51.8% firsts..... I'm wondering if this is worthwhile?

What does the % of firsts on GFN matter? You can't give GFN work more than one GPU at a time, can you?

For comps like this one, what % of first's should you be looking for?
I'm guessing its a bit subjective because more 1st's might come at a cost of throughput right?

Is there a "magic" number? More than 50% 1st's is ok I guess?
My GFN 17 Low is only producing 51.8% firsts..... I'm wondering if this is worthwhile?