I have recently built a new PC all new parts.. The case, PSU, MB, CPU, and ram all came as comboe deal. Bought GFX card CPU fan.. had all sent figured ready to go. Well got it all hooked up try to turn it on and nothing happend no light fans nothing..made sure everything was hooked up right even had friend look at it said everything hooked up right , so it must be the MB.. So sent back the motherboard and got new one.. Still nothing happend when I tryed to turn it on. Took it to a tech guy to look make sure all hooked up right and he suggested getting a new PSU so I did got a good one OCZ ModXSteam 600 watt.. and still nothing happends can someone please help I'm going crazy have this nice PC next to me and wont turn on.. specs are Gigabyte GA-MA785GPM-US2H Motherboard AMD Athalon II 240 Regor 2.8 ghz socket AM3 cpu 2X1 gig GSkillz 240 pin sdram ddr2 800 OCZ ModXstream 600 watt PSU 20/24 pin / 4/8 pin (MB is compatible with 4 or 8 pin using 8 atm) Artic Cooling Freezer 64 pro CPU fan( thing is huge lol) XFX PVT94GZAH2 GeForce 9400 GT 1GB 128-bit DDR2 PCI Express 2.0 x16 SLI Support Video Card So please help me