New computer build experiencing some problems
I've just build a new computer build and am experiencing some problems with it.
When you try to turn it on you get mixed results, sometimes nothing at all happens, others it will run for about half a second and then stop, sometimes it will go for a random length of time which is about 10 seconds then turn off, and then a couple of times it has actuality ran properly. I have taken the motherboard out of the case and tried to run it out of the case, it worked once, but other times was the same as usual. Once when I touched the power switch on the from of the case I got a bit of an electric shock from it, I don't know if that related. Furthermore, one time when I tried to plug the power cable into the back of the power supply it fused the whole house, the switch was on at the wall but the switch on the back of the power supply was off and I wasn't touching any of the buttons on the front of the case. I've tried running it with only the bare minimum plugged in, so the motherboard, cpu, graphics card and ram only, and it still had the same problem, except for once, this was the only other time I got it to run. I've tried RAM in different slots and both 1 and 2 sticks of RAM.
I think that the problem maybe with a faulty power supply, but before I try to send it back I wanted to see what people here though the problem might be.
All the components are brand new, and this is a list of them:
Motherboard: Gigabyte GA-MA770T-UD3P AMD 770 Socket AM3 6 Channel Audio Out ATX Motherboard.
CPU: AMD Athlon II X4 620 2.6GHz AM3 Retail Boxed Processor
RAM: Crucial 4GB (2x2GB) DDR3 1333MHz/PC3-10600 Ballistix Memory Kit CL6 1.8V
HD: Western Digital WD5000AAKS 500GB SATAII 7200RPM 16MB Cache - OEM
Graphics card: Sapphire HD 4550 512MB DDR3 VGA DVI HDMI HDCP PCI-E Graphics Card including Low Profile bracket.
Disk drive: Sony AD-5240S 24x DVD±RW DL Internal SATA Black Bare Drive - OEM
PSU: Powwa 600W 12cm Fan >80% High Efficiency PSU - 20+4pin 6pin PCI-E 2x SATA.
Any help would be really appreciated.
Thanks very much.