I had the 'Media Test Failure' message appear when booting, so i tried to fix the problem by changing the boot mode from Legacy to UEFI. After i did this my computer restarted and would not post, although all the components started up including the HDD which i changed it on. I have already checked ram and taken out the motherboard battery for a good 10 mins. This is also a brand new system that i had booted for the first time yesterday.
Here are the pc specs:
Cpu: i5 3570
Mobo: Intel DQ77MK
Ram: 2x2gb Corsair VS2GB1333D3
Gpu: EVGA gtx 480
Psu: Thermaltake 600w 80+ Bronze
HDD: Samsung Spinpoint F3 1tb