Having trouble with my homebuild

Ok, so i just finished connecting all the components together in my new pc. I've built one before so i didnt think i would have an issue with this one. I was wrong.
After hooking everything up and pluggin it into an outlet, i press the power button and everything will turn on, then it powers off only after a seond. If i don't cut the power off on the PSU itself, it continues to do that. All the fans start spinning on the case, PSU, GPU, MOBO lights, and CPU fan, and the LED's in the re light up too, so i know they're all getting power.
I've tried two different PSU's (500w & 700w)and got the same result. At this point i'm thinking it's the MOBO. Does this sound right? ALl parts were bought brand new from TigerDirect.

OCZ AGT3-25SAT3-120G Agility 3 Series Solid State Drive - 120GB, 2.5" SATA III, 6Gbps

1 M452-6206 MSI P67A-C43 B3 Intel P67 Motherboard - ATX, Socket H2 (LGA1155), Intel P67 Express, DDR3 2133MHz

1 C13-2040 Corsair XMS3 Tri Channel 6GB PC10666 DDR3 Memory - 1333MHz, 6144MB (3 x 2048)

1 C283-1220 Cooler Master eXtreme Power Plus RS500-PCARD3 500-Watt US Power Supply - ATX, 12V, 120mm Fan, RoHS

1 P450-6875 XFX HD-687A-ZHFC Radeon HD 6870 900M Video Card - 1GB, GDDR5, PCI-Express 2.1 (x16), 1x HDMI, Dual DVI, 2x Mini DisplayPort, DirectX 11, Dual-Slot, CrossFireX Ready

1 L12-1347 Lite-On iHAS524-98 Internal DVD Writer - DVD+R 24X, DVD-R 24X, DVD+RW 8X, DVD+RW 8X, DVD-RW 6X, CD-R 48X, CD-RW 32X, SATA, LabelTag, Black

1 C283-3122 Cooler Master RC-430-KWN1 Elite 430 Mid Tower ATX Case - ATX/Micro-ATX, USB, Audio, 120mm Blue LED Fan, Black

1 I69-2400 Intel Core i5-2400 BX80623I52400 Processor - Quad Core, 6MB L3 Cache, 1MB L2 Cache, 3.10 GHz (3.40 GHz Max Turbo), Socket H2 (LGA1155), 95W, Fan, Retail
2 answers Last reply Best Answer
More about having trouble homebuild
  1. That sounds like it might be a motherboard, but have you tried another output for video?
  2. Best answer
    Hmmm... do this:

    *remove the GPU and try use the IGP of the i5 2400

    *boot with only one stick of ram (you have to try all combinations)

    *coolermaster's PSU suck.... what brand was the 700w PSU you tested?
Ask a new question

Read More

Homebuilt Systems