1200W is definitely enough, it can easily take 1300W out of the wall.
I would suggest you to double check the basics:
- reset BIOS to default
- set PCI-E to Gen2 and disable built in video adapter
- do not use Molex on MB if you have powered risers
- setup default BIOS and settings on all cards.
- install all the latest updates for Windows (run>winver>must be 1703)
- uninstall with DDU and reinstall the drivers for Nvidia recommended by Claymore ("10xx cards in Windows 10 x64: just use latest 372.54 drivers from Nvidia website, note that you must have Win10 Anniversary update")
- setup RAM >4GB
- setup virtual memory > 16GB
- setup exclusions for AntiVirus software
- make sure that you have no more than 2 card per SATA PSU cable
- use only essential commands in config/bat file
- avoid using temperature or overclocking settings keys inside config/bat file
- run 1 card only
- use MSI AB to setup up minimal settings - decrease Core clock and memory clock
- if stable add a second card
- reinstall the driver
- setup up minimal settings - decrease Core clock and memory clock
- add more cards one by one
- if running stable on minimal settings increase each parameter one by one
- if stable you may try to overclock it
- use GPU-Z and HW info to monitor the hardware
Post screenshots here. We might notice something odd.
I will try this and get back to you, but this is now weird.
Havent changed anything but some oc in afterburner, 75% Power, 85 temp, -400 core, +400 mem and its been running for 16 hours.
Tried this as well yesterday with a Little modifications and its jsut crashed after a while.
Checking in afterburner, it usually crash when the % Power make a down spike or drop, does anyone know why this happens? Do I need to add more voltage or Power to remove the spikes? Because i guess thats what causes the instability.
Also, spikes usually happens when i get a new job in claymore, maybe it should be like that.
Uploaded image of it, usually its the last gpu that fails.
http://imgur.com/a/fJTTtEdit : In my Control panel, Power management is set to optimal Power by default, is it best to have that or maximum performance?