i don't think so updating bios will be help full
then also
give it a tryif this doesn't work then
i think so your gpu is the problem
because i have the same problem with my old gpu
your gpu must be damaged by either overheating or mishandling
better you give it to the company for repairing
CPU: AMD FX8150 at 4.6Ghz, Motherboard: Crosshair V Formula-Z, GPU: HD 7750 at 900Mhz, RAM: Corsair XMS3 8GB, Cooler: Cooler Master Hyper 212 evo, Cabinet: Cooler Master Elite 311 with 3 xtraflo fans, PSU: Cooler Master Thunder 500, HDD: Seagate Barracuda 1TB