I had these in my system for about 2 and a half years but never overclocked them. Getting quite frustrated at poor performance in some poorly optimized games I got desperate and tried overclocking them a bit.
I was using an older version of Afterburner and went for a 192mhz OC on both core and memory. I set power at 110% and crammed in a few more MV's. Fire up the Witcher 3 and things ran smooth for a while, then it crashed with windows reporting a driver crash and said it had recovered.
Now the scary part. When I looked back at Afterburner both core and memory clock speeds were in excess of 32470mhz ... yes you read that right.
I went back into NVCP and my 2nd card was gone, no SLI options. Rebooted PC and SLI was back. Failing that I uninstalled all the old overclocking tools and started fresh.
This time with the latest Afterburner, GPU-Z, NVI I tried again. Set the core at + 200 and memory at +250 with +27mv (27mv being the max available) and 110% power. Fired up Heaven 4.0, let it loop a few times and benched with no issues. I even beat my old score by 300 points totaling 3444 at 1080p max settings and tessellation.
Still displeased with performance, I disabled SLI to test another game. That game would crash intermittently and I got the driver-crash again. When I looked back at Afterburner which I forgot about, the card that was showing the boost was obviously disabled. So I closed Afterburner. I haven't had the driver crash again, but I have had intermittent crashes and I wonder if I damaged both cards or one of them.
I am now testing another game to see if I can isolate the crashing to only one game. So far it's been playing for about 2 hours without issues, but it's Darksouls 1 which is not terribly demanding. Maybe I need to do a session of the Witcher again.
For some reason I was not able to locate the driver error information, the only events that match up are the D3d11.dll which I believe were the normal crashes and not the driver related ones. Here is crash event data:
Faulting application name: LordsOfTheFallen.exe, version: 0.0.0.0, time stamp: 0x54f449cc
Faulting module name: d3d11.dll, version: 6.2.9200.16570, time stamp: 0x5153b56b
Exception code: 0xc0000005
Fault offset: 0x00000000000d6f09
Faulting process id: 0x15a4
Faulting application start time: 0x01d258547e2d3a5a
Faulting application path: H:\Games\Steam\steamapps\common\Lords Of The Fallen\bin\LordsOfTheFallen.exe
Faulting module path: C:\Windows\system32\d3d11.dll
Report Id: b514762c-c448-11e6-bec4-902b343d2ae3
This game is notorious for stability issues and I had not played it to any great length of time before the overlclocking ordeal. I'm hoping it's just coincidence, but the fact that Aferburner had my cards overclocking in the tens of thousands has me worried.
I was using an older version of Afterburner and went for a 192mhz OC on both core and memory. I set power at 110% and crammed in a few more MV's. Fire up the Witcher 3 and things ran smooth for a while, then it crashed with windows reporting a driver crash and said it had recovered.
Now the scary part. When I looked back at Afterburner both core and memory clock speeds were in excess of 32470mhz ... yes you read that right.
I went back into NVCP and my 2nd card was gone, no SLI options. Rebooted PC and SLI was back. Failing that I uninstalled all the old overclocking tools and started fresh.
This time with the latest Afterburner, GPU-Z, NVI I tried again. Set the core at + 200 and memory at +250 with +27mv (27mv being the max available) and 110% power. Fired up Heaven 4.0, let it loop a few times and benched with no issues. I even beat my old score by 300 points totaling 3444 at 1080p max settings and tessellation.
Still displeased with performance, I disabled SLI to test another game. That game would crash intermittently and I got the driver-crash again. When I looked back at Afterburner which I forgot about, the card that was showing the boost was obviously disabled. So I closed Afterburner. I haven't had the driver crash again, but I have had intermittent crashes and I wonder if I damaged both cards or one of them.
I am now testing another game to see if I can isolate the crashing to only one game. So far it's been playing for about 2 hours without issues, but it's Darksouls 1 which is not terribly demanding. Maybe I need to do a session of the Witcher again.
For some reason I was not able to locate the driver error information, the only events that match up are the D3d11.dll which I believe were the normal crashes and not the driver related ones. Here is crash event data:
Faulting application name: LordsOfTheFallen.exe, version: 0.0.0.0, time stamp: 0x54f449cc
Faulting module name: d3d11.dll, version: 6.2.9200.16570, time stamp: 0x5153b56b
Exception code: 0xc0000005
Fault offset: 0x00000000000d6f09
Faulting process id: 0x15a4
Faulting application start time: 0x01d258547e2d3a5a
Faulting application path: H:\Games\Steam\steamapps\common\Lords Of The Fallen\bin\LordsOfTheFallen.exe
Faulting module path: C:\Windows\system32\d3d11.dll
Report Id: b514762c-c448-11e6-bec4-902b343d2ae3
This game is notorious for stability issues and I had not played it to any great length of time before the overlclocking ordeal. I'm hoping it's just coincidence, but the fact that Aferburner had my cards overclocking in the tens of thousands has me worried.