Computer Crashing New build

[a1912]

I just built

PCPartPicker part list: http://pcpartpicker.com/p/f5Hq
Price breakdown by merchant: http://pcpartpicker.com/p/f5Hq/by_merchant/
Benchmarks: http://pcpartpicker.com/p/f5Hq/benchmarks/

CPU: Intel Core i5-3450 3.1GHz Quad-Core Processor ($149.99 @ Microcenter)
Motherboard: ASRock H77M Micro ATX LGA1155 Motherboard ($69.99 @ Newegg)
Memory: G.Skill Ripjaws X Series 8GB (2 x 4GB) DDR3-1600 Memory ($45.22 @ NCIX US)
Storage: Western Digital Caviar Blue 500GB 3.5" 7200RPM Internal Hard Drive ($59.50 @ Newegg)
Video Card: XFX Radeon HD 7870 2GB Video Card ($239.99 @ Newegg)
Case: NZXT Source 210 Elite (Black) ATX Mid Tower Case ($49.98 @ Outlet PC)
Power Supply: OCZ 550W ATX12V Power Supply ($39.99 @ Microcenter)
Optical Drive: LG GH24NS90 DVD/CD Writer ($21.48 @ Amazon)
Total: $676.14
(Prices include shipping and discounts when available.)
(Generated by PCPartPicker 2012-08-24 11:49 EDT-0400)

and it has started to crash randomly, i can't seem to get a repeatable result, I think it has to do with the case fans it ran fine, then i connected them and it crashed after a bit, some of the connections weren't right but i fixed that and it didn't crash for a while while running, i have since disconected on fan to the MOBO and only connected to the PSU. and it seems to be working? any suggestions how to connect the fans or other things that could cause problems.

 

[mmilner1]

Sounds like your connecting your polarity wrong or incorrect voltage, I'd go to your nearest computer store or new egg and buy some adapters that will allow you to properly connect them.

 

[price_th]

I think you fan is just a symptom of an issue with your MOBO. Try a different fan being they are not that expensive.

 

[edogawa]

Please answer these clear:
--------------------------------------------------------------------------------------------------------------

1. Did it start to randomly crash in Windows, during Windows boot?


2. What do you mean some of the connections were not right?


3. There are no crashes with the fans not plugged in?


--------------------------------------------------------------------------------------------------------------

I'd like you to try running the fans via MOLEX cables only directly from your power supply and not through motherboard.

 

[a1912]

It would always boot.... And the 2 of the pins in the 4 pin connect from the fan were coming out of the plastic connection but the popped back in. And there is currently no crash with both fans connected to power sepertly and only one connecter to the mobo

 

[edogawa]

So, there are no crashes and it works fine now with only 1 fan plugged in then?

And you were not plugging a case fan into the PWR_FAN port were you?

 

[a1912]

I will double check.