Gigabyte Windforce 2X GTX550ti

Kurifox

Honorable
Jul 30, 2013
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If you are saying they are now broken, it is probably yher PSU fault, i cannot find the rapter 2 in the list. But the Hec ORION is listed as tier 5 PSU, wich is bad news.
If it is from a bad company, its probably a bad unit.

IT mosty likely failed and fried your GPUs