Need Major Help New build problems

am having some odd trouble with a new build. I assembled all the parts listed below. It sometimes barely powers up, when iam lucky the psu turns on then continues to reset in intervals of 3 seconds for about 15 seconds then, finally turns on and stays on and gets everything going like the GPU and CPU fan, the Cd Rom everything but nothing shows up on the monitor. Also the 4 pin Cpu fan port on the mobo stoped working so i had to plug the fan in another 3 pin fan port for the cpu fan to work so the fan it self is not the issue. i decided to test out the psu on my fully functional current computer which iam using this very moment the PSU works with out a hitch it turns up just fine on the first power up no resets what so ever works like a dream the nice blue light turns up at the push of the button is it the ram? the timings are 4 5 4 15. i will most likely just replace the MoBO,using Neweggs easy RMA i just bought this 3 days ago. i came here to OC Forums to ask what the cause might be, i think the mobo is the culprit


I really appreciate your inputs please help a novice individual out



New Rigs Specs


Motherboard: GIGABYTE GA-P35-DS3P Rev 2.0
CPU: Core 2 Duo 6750
GPU: XFX Geforce 8600 GTS
RAM: OCZ Platinum 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Memory Model OCZ2P8002GK
PSU: OCZ GameXStream OCZ700GXSSLI ATX12V 700W Power Supply
HDD: SAMSUNG SpinPoint T Series HD501LJ 500GB 7200 RPM SATA 3.0Gb/s Hard Drive - OEM