Windows PC randomly freezes while using SLI (new system)

Hey fellas - Long time no post!

I am in need of some help on a new build. The computer keeps freezing on me, sometimes several times a night. It has happened doing various games and I think once with no games going.

I have looked in the logs and see a "Kernel-Power, event 41, task category 63 error each time.

I just set it up with a clean win10 64bit install, installed some of the drivers for the hardware off MSI's site and a few games and utilities nothing crazy.

Some points:

1. I have not over clocked yet
2. Temperatures look fine, even got a new case (TT TheTower 900)
3. Ran windows memory test, came back no errors
4. Ran latest updates from windows

PC Build List:

• 2x Evga 1070 SC in SLI
• 32 gb DDR4 Cosair Vengance
• MSI X99A SLI Plus
• Intel i7-5820K
• Samsung 950 Pro M.2 256 (OS)
• Samsung 950 Pro M.2 512 (Games)
• 2x Samsung 940 Pro 256 SSD
• 1x Samsung 940 Pro 512 SSD
• 3x Seagate 3TB in Raid 5 (platter)
• Evga Supernova 1200 Platinum
• TT TheTower 900
• Oculus Rift + Touch +Xbox 1 controller & dongle
• Dell U3415W (34" curved ultra wide 4k)
• Have a cosair k70 RGB keyboard, Steel Series R700, and Razer Firefly

Has anyone run into this or know of any possible bugs or next steps for troubleshooting?

Any help is appreciated because right now I'm...


Things I've done to troubleshoot:

• Ran memory test with no errors
• Disconnected all optional hardware, everything runs fine until SLI is enabled with two cards
• Tested each card out, both work without issue until SLI is enabled
• Upgraded PSU from 850 to 1200 Platinum evga
• Disabled audio drivers from Nvidia
• Adjusted power settings
• Removed motherboard applications
• Installed Evga professional SLI bridge

At this point I can't think of anything other than the Mobo...Thoughts?

 

If the above doesn't work, I'd try stripping it back to basics - mobo, CPU, RAM, 1 graphics card and 1 drive - and take it from there.

 

Is there any log file I can get to help me identify the true issue, don't want to stab in the dark.

 

Evga Supernova 850 G2

 

In my experience, that's often [but not always] a sign your PSU is about to kick the bucket. Occasionally it's caused by motherboard power saving measures not kicking in properly or kicking in when they shouldn't so if your motherboard has anything like that, try turning them off.

 

Is there a PSU checking program or anything I could monitor to confirm this?

 

Been reading up a bit, and some claim to have similar issues due to SLI being enabled ...

 

I should note I have the computer on a large APC unit as well.


I did find an article that mentioned what you said too...hmm


http://www.tomshardware.com/faq/id-3128570/fix-windows-error-event-kernel-power.html

 

None that are especially reliable iirc. They tend to be not that accurate and if it is a power problem the system usually keels over before the utility registers or can alert you to a problem.

 

Ah. I have a lot hooked up, maybe its running out of power then?

4 SSDs
2 M2s
3 HDD
2 1070s
Oculus Rift
Keyboard, Mouse, Pad (all light up)

 

Does this info help?





since images aren't working for me...
http://imgur.com/jJ8Tw6U
http://imgur.com/Q4XwnZ5

 

Was thinking maybe its not enough power...

Part Max Power
EVGA GeForce GTX 1070 SC GAMING ACX 3.0 170
EVGA GeForce GTX 1070 SC GAMING ACX 3.0 170
Intel Core i7-5820K (3.3GHz/4.3GHz) 339
Drives x9 50
Fans x5 25
Cooler 10
Ram 1.49x8 12
LED strip 2
USB 10

Total of 788 W

 

I'd go back to basics too.. Update bios, minimum ram, one guy and minimum number of drives you can get away with. Stress test and keep adding till you get to the problem.... Ps that's a mighty pc...

 

Thanks and I was hoping logs of the errors could tell me without shooting in the dark. My leading suspicion at this time is putting my power usage over 80%.

I'll have to check the bios for updates.

 

Could be the UPS or the power from the wall causing problems rather than the PSU itself. Maybe try without the UPS and in a different socket if you haven't already.

 

So I updated the BIOS and removed one video card, and all but two drives (m.2 and m.2 in pcie) and so far so good. Will add in a part tomorrow and see if it's still good.

 

Do you have a power meter so that you can measure power draw at the wall? I'm not convinced insufficient power is your problem as I've run a FAR more power-hungry setup than yours on a 775W PSU without issues... and that's with over clocking and benching, which draws more power than casual gaming or general daily use.

If it was me in your situation I'd get a power meter for a few bucks and get a concrete figure for your power draw in a typical usage scenario. For me with two 480s in SLI it was well below 700W, and that was on X58 which absolutely hogs the power.

 

I have a meter but would need some guidance on how to do this. One of the things I noticed is my PSU is single rail, could that be an issue?

 

To be honest, I don't think you need to worry about measuring your power. I'm currently running my 5820K at 4.5GHz and I've been crunching 3D renders most of today, and the power draw at the wall for the entire system is sitting at around 220W. There is simply no way in hell that your system is drawing anywhere near the 850W rating of your PSU. I haven't done any heavy gaming with my X99 system but with my X58 system and the 980Ti (heavily overclocked) I was pulling around 440W at the wall during the Firestrike bench.

Re. single rail, definitely not a problem - it's actually a hallmark of top quality PSU.

If your problem is PSU related then it's due to a fault, not insufficient power. I hope RedFlames is wrong that your PSU could be dying, but it's a possibility.