New MOBO RAM, CPU, one is faulty, but which?

[micalov]

Hi,

Just purchased a new MOBO, RAM CPU and GPU

MSI 870A-G54 AMD 870 (Socket AM3) DDR3 Motherboard
MD Phenom II X4 Quad Core 955 Black Edition "125W Edition" 3.20GHz (Socket AM3)
Kingston HyperX Blu 8GB (2x4GB) DDR3 PC3-10666C9 1333MHz Dual Channel Kit (KHX1333C9D3B1K2/8G)

When assenbled they wont power on or post, the CPU/case fan with try to spin like it cant get enough power, and the lights on the main board and power indicator lights flicker lieke it cannot draw enough power.

The PSU is a 600 watt expensive one and still works, confirmed the GPU is not the problem as using it atm.

Done all the usualy switching out ram, reset the CMOS with the jumper, had pretty much every thing disconnected and same problem.

The less things connected IE case fans removed ect the more the CPU fan it seems to be able to spin.

So was wondering for the more experienced people out there, if this would more likely be the motherbourd being faulty or CPU? for return.

Thanks.

 

[honosuseri]

I would lean to saying mobo however.....

Have you checked your power connections? i.e Is the aux power plugged into the mobo.

When I have to diagnose these problems I test the system out of the case. Place the mobo on its box, have 1 stick of RAM, gfx card in slot and the psu and connectors attached. Either place the case next to it so you can get the power switch cable to the mobo or use a flat head screwdriver and briefly touch it against the 2 power pins on the header to emulate the switch. Note you don't need to attach the monitor it will post without.

Try that and post back what you find

 

[mmj_uk]

What brand PSU?

 

[micalov]

Tried powering with it outside the case in the box with just one stick of RAM GFX card like you said Honosuseri but same out come. Same partial CPU fan movement and lights on the Mobo flickering like a power surge.


Also the PSU is OCZ StealthXStream 600w Ready Power Supply

Thanks