Verification Failed, Check Hardware! (But ONLY On Certain Video Cards, Using -v)

[gigabytecoin]

This is doing quite a good job of annoying me.

I have 6 cards plugged into MSI 890FXA-GD70 motherboards... all with pcie 1x extenders that I have cut/shorted myself.

I can start up all 6 cards fine. The rig runs great for a few hours.

Sure enough... sometimes 5 minutes in, sometimes 12 minutes in... card number 4 (according to aticonifg, and always/only-ever card number 4) will receive the dreaded "Verification Failed, Check Hardware!" message.

I am not even 100% sure what card it is because all of them feel hot to the touch on my setup.

I have the exact same setup on a MSI 790FX-GD70 board... and I have yet to notice this, but then again there are only 5 cards on the board.

Anybody else experience this problem? Know any possible solutions?

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[bitcoindaddy]

Are you overclocking the cards? If so, you pushed it too far.

If you aren't overclocking, then one or more of your cards are bad.

[eleuthria]

As the warning says, check the hardware.  This is NORMALLY due to overclocking and/or changing the voltage on your cards.  However, it is possible you simply have a bad card.  This type of error is something you'd see if you were gaming and suddenly you some textures started to shoot out into space instead of sticking to the geometry.  The card made a mistake, and thats a sign of hardware failure (possibly minor, possibly major).