Just after suggestions, at the end of my tether
I have a machine built with the following spec. Its been running fine for almost a year
Gigabyte X99-SLI rev 1.0
5820K
4x Teamgroup Vulcan 3000MHz DDR4
SoundBlaster Z
Samsung 950 256GB SSD In PCI-E Adapter + Corsair Force 120SSD + 1TB WD HDD
Windows 10 64bit
Was running 2x PowerColor 280x
EVGA 1300w PSU
Raijintec triton 120 with 4x fans in push-pull
NZXT Grid+ running 4x 120CM Carsair Fans
Corsair Air 540 Case
Recently started getting sudden restarts for no reason or freeze for a few seconds, then restart, even under mild load (World of Warcraft). Temps are fine CPU is never over 45 degrees.
Initially put it down to the graphics cards getting on a bit. Upgraded to new Nvidia 1070GTX (WOW what a card) still getting same restarts
Tried so far
Running stock (no XMP or CPU overclock - was running OK at 4.2GHz. Had gone to 4.5GHz and all was OK but settled on 4.2GHz)
Changed RAM for Corsair Vengance LPX 3000MHz (but running 2133 stock)- no change
Removed sound card and tried onboard (sometimes was buzzing on freeze) - no change
Tried no sound - no change
Updated to F22 BIOS - no change
Updated all drivers (refresh versions on Gigabyte web)
Checked and re-seated CPU - no change
Tried different PSU (Antec Gamer 900 had from old build) - no change
So have changed everything except the MB and CPU - have requested an RMA for the MB (not heard anything yet)
Anyone any other ideas? Cant even do anything under load for more than around 10mins