morning all,
So I use avast and just started mining for altcoins (X11,X13,X15, NIST5). I use minorcontrol 1.3 and CCMiner M7V7.
It took me some time to figure out how to do this but I finally got it working. Unfortunately after a few mining passes my system crashes and when I reboot I get a purple screen instead of a desktop. Others using the same video card (GTX-760) and same driver (344 or whatever the lates is, not beta) have no issues. One of them pointed out some posts about avast being the cause.
So, I’m hoping maybe someone else here has experienced it or can suggest modifications to avast to halt the issue.
How about the Avast logs and reports? C:\ProgramData\AVAST Software\Avast\log and C:\ProgramData\AVAST Software\Avast\report (W7).
Gordon.
Wish I could. But when I reboot I get a kind of dark purple screen where my desktop should be. The only way to recover is my using my emergency disk and rolling my computer back to my last system image.
My first thought was the video card, but upon reboot I can see the bios boot and the first microsoft screen with the swrling windows and that can only go through my video card. But I still suspected it so when I recovered I brought up EVGAs precision and set the priority to temp and 80 degree’s. Then moved that to the side and kicked off the miner. I watched the temp increase to about 61 degrees and then the system crashed. So I don’t think it’s the video card.
I watched the temp increase to about 61 degrees...
This is your GPU, right? (Just need to check.) ;D Get another cooling fan and blast the top side with some nice cold air. The Miner is using the GPU because it’s generally got heaps more power than the CPU, and also to take the workload off the CPU. Trouble is, on many boxes, the graphics card is not well ventilated, lots of peoples have them but don’t use them (hard-core gaming is a great example of what they’re useful for) so they never notice.
You may need to move the graphics card to a more open location: up or down one or two slots.
While you’ve got the covers off, change all fans around so they ALL suck air IN, and let your PSU get rid of it. You may need to put some light dust filtration on the intakes.
O cwap. :-[ This is a desktop, isn’t it?
Gordon.
used to overclock the CPU on this one. Has an extended mobo as well as a large case. video card is all by it’s lonesome. Case is steel with a mesh top so heat just keeps going up. Have a 240 fan on the top blowing upwards. Front, side(blowing on the video card) and rear all have 120 fans.
Yes, temp is referring to video card, don’t know if precision shows CPU temps?
And well aware of what miner is using which is why I have been concentrating on GPU temps.
Blew all the dust and such out when I put the new GTX 760 in there last weekend. Don’t think enough time has past for any significant dust to build up.
I can’t completely rule it out but I don’t think heat and the GPU is the issue.
Well it’s a tower as opposed to a desktop. Sits in the open in a well ventilated area
It’s a desktop. It does appear Precision doesn’t care about your CPU. 
You haven’t mentioned any system monitor. I use Open Hardware Monitor (http://openhardwaremonitor.org/), it needs Admin to run, I use SuRun to get it on my user account. We need to eliminate CPU temps. But I can’t think what CPU failure would generate a “purple screen” with “swirling windows”.
I’m puzzled about “only way to recover is my using my emergency disk and rolling my computer back to my last system image.” Software (apart from the GPU) should not be able to do that to your desktop, although it’s possible the desktop graphics are being corrupted–but after a reboot?
When it happens again, try waiting a half-hour before restarting, let things cool down, see what that looks like.
Gordon.
Not really understanding, the software for the rollback has nothing to do with the GPU. I do microsft backup as well as a system image in case of emergencies like this. Then I make an emergency recovery disk, an option after you’ve completed the backup to make a DVD to boot from if needed.
When it happened last night I shut down the computer and turned of my power supply, watched the game for an hour or so, then turned everything back on.
The post test passes
I see it loading windows
Then it goes to the swirling windows that come together to make a large windows icon in the middle of the screen
After that it usully goes blank for a second and then the desktop appears.
But now instead of a desktop I get a dark purple screen.
Oh, the coloured fire-flies! Ummm. I guess an hour of cooling down does eliminate heat from the GPU. So we may be looking at the monitor driver, if the monitor res settings have been moved by something. What happens if you let the purple screen just sit there?
Gordon.
Well the monitor setting have been set at “native” (1600x1200) since I bought it years ago. No change there.
When I just let the purple screen sit there it does not change.
Hmmm. Give you can “reset” the monitor by restoring a past system image, it’s looking more and more like something has adjusted your monitor settings, not necessarily the resolution. Maybe the refresh rate, maybe colour mangement. Can you get any result by fiddling with the controls?
Gordon.
Well not in front of it right now. At work. But I can try. But as it is normal all the way up to that point I don’t think it, all of a sudden changes from the fireflies looking great to crapping it’s pants.