Hello. After installing a Sapphire RX Vega 64 nitro+ (Current AMD driver: 18.5.1). I have been suffering from random restarts. However, it is literally random. It may suddenly restart while browsing the web, even one time it simply happened while I was browsing stuff on the desktop, and other times it happened right after I chose to shut down or restart the computer. Also, the RAM speed resets to 2133mhz from 3200mhz that I chose.
Also, I played several long matches on Battlefield 4 and Battlefield 1 and it did not happen while gaming.
And the event viewer shows up a Bugcheck in the logs. As follows...
"The computer has rebooted from a bugcheck. The bugcheck was: 0x00000116 (0xffffcc015d8b84a0, 0xfffff80dce33fce8, 0xffffffffc0000001, 0x0000000000000003). A dump was saved in: C:\Windows\MEMORY.DMP. Report Id: ee3a901d-99ee-4417-b8cd-8ec47de60b5a."
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</System>
</EventData>
</Event>
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CPU: AMD RYZEN 7 2700X 8-Core 3.7 GHz
GPU: SAPPHIRE NITRO+ Radeon RX Vega 64 DirectX 12 100410NT+SR 8GB 2048-Bit HBM2 PCI Express 3.0 Video Card
RAM: G.SKILL TridentZ RGB Series 16GB (2 x 8GB) 288-Pin DDR4 SDRAM DDR4 3200
PSU: EVGA SuperNOVA 850 G2 220-G2-0850-XR 80+ GOLD 850W
The only part above that I guess you can consider overclocked is the ram. Default speeds out of box is 2133mhz. In bios I choose to put the speeds at 3200mhz. Nothing else is overclocked.
Is it the PSU or the GPU causing problems?
Try these steps first: http://www.windowsreport.com/dxgkrnl-sys-windows-10/
what's your mobo?
ASUS ROG Crosshair VII Hero (Non Wifi)
EDIT: It happened again. Another bugcheck error in event viewer:
</System>
</EventData>
</Event>
submit the dmp file to MS or read it by yourself
i guess it may be Mobo problem.
I do not know if you have the triple or double 8-pin power Nitro. I would try hooking a different 8-pin connector and cable (PSU VGA1, VGA2, VGA3) for each socket on the Nitro+ card. Since that PSU is single rail, I think, I doubt it will change anything.
This is assuming that you are not OCing the GPU. If you are OCing the GPU, then first thing to try is not OCing it.
Are you using audio through the card?