Hi all,

my rig stopped last night because apparently a riser burnt through. It wasn't one of those cases where people connect to the pci port it the other way around and short circuit: it has been running for weeks without problems. Last reboot was a couple of days ago when I updated Claymore.

I connected a new riser and immediately the riser gave a spark and burnt through as well. Fortunately I still had the powerplug in my hands and could disconnect it immediately.
Picture of what both risers look like:

There is no visible damage to the GPU, to the little thingie going into the PCI slot of the MB or to the slot of the MB.

I disconnected the riser and gpu and fortunately the rig could reboot and is still working with the other 4 GPUs.

Is my GPU fried? I'm afraid to test it directly on the MB, because that might fry my MB as well...
PSU: Be Quiet Power Zone 1000W

Any tips?

Thanks.