Mining Eqihash causes computer to shut down

[robomike5777]

Hey all,

I have a Nvidia Titanx and a GTX 1080 SC

I can mine LBC no problem and overclock with no problems and be really stable.

When I try to mine Equihash using either the nhequiminer or the Zec miner - my computer shuts down.

It doesn't seem to be a thermal problem, i even tried to move the GPU's with pci-e risers to separate them more and run their fans 100 percent.

Why would mining one algo vs another cause the computer to shut down?

Please help me ,

Mike