Quote from: lawrencelyl on September 14, 2015, 03:09:17 PM

Quote from: Cryptozillah on September 14, 2015, 02:24:03 PM

Quote from: joblo on September 14, 2015, 01:42:30 PM

Quote from: Cryptozillah on September 14, 2015, 12:41:27 PM

I have some stability problems with two of my "leftovers" nvidia rigs.
One of them are powering down the whole system after mining for a couple of hours and the other one is ccminer just crashing on randomly.

I have identical hardware in all my the rigs (NVIDIA/AMD), mobos, cpu, ram, risers and psus.

In one rig i have one EVGA FTW 750Ti and the other rig i have one EVGA SC 750Ti + Gigabyte Windforce 750Ti.
The one powering down is the rig with two cards.

At the same time i have two rigs running five 750Ti:s each at 36Mhs Quark totally stable for weeks.

This is really annoying because they are also crashing with stock settings on the gpu:s. Temps are really low also so i dont get this.

All systems have fresh Win 8.1 installations.
I am running the 355.60 Driver on all rigs and i am using the 61 build due to best performance for me with that one.

Anyone have a clue what could be the problem ?
Can i find logs from ccminer somewhere ?

Start swapping hardware one component at a time between a good rig and a bad rig until the good rig goes bad
and the bad rig goes good. Then you've identified the faulty component.
Some more info would be helpfull. Is there any error message when ccminer crashes? Can mining be resumed or
does the system need a reboot?

Here's something that can be added to a bat file to check for a crash.

tasklist /FI "IMAGENAME eq ccminer.exe" 2>NUL | find /I /N "%1">NUL
if "%ERRORLEVEL%" NEQ "0" goto restart_ccminer_becauuse_it_died

I will take a screenshot next time ccminer stop mining, cant remember what it say when it happends.
If i just close the miner and start it up again i will get really bad hashrate. So a reboot is needed after every "crash"

I have been testing replacing some hardware like psu and ram but still the same problems with these two rigs. I am starting to think that these gpu:s are someway faulty. All these three cards are used cards that i have been buying lately.

I would suggest swapping the graphics card to check if it makes any different.
And I have been mining with release 66, so far is stable for me.

Yeah i guess that is what i need to do.
I am using r61 on all rigs so that build should not be the problem.

I am watching some of my 750Ti cards pushing above 7.3Mhs as we speak. I see no increase in speed with the other releases for my 750Ti cards.