PC will not POST

[Wedge1]

What are the reasons a PC may not POST?

 

[MagnusTheBrewer]

Bad ram
Bad MB
Bad PSU
Bad CPU
Bad GPU
Bad install
Bad cables
Bad BIOS
The reasons are legion. There is an old computer troubleshooting technique called "eliminate and consolidate" which refers to starting with a minimal install of the CPU, one stick of ram and a GPU outside the box. Once you get it to post, you add one component or installation step and boot to test the setup. Wash, rinse, repeat. At the basic minimal install level, you can only replace until you find the culprit.

 

[Statius]

Case short tends to always be the culprit when I build a new rig.

 

[Wedge1]

If I am getting no beep codes, would this point to a defective motherboard? I am confident that it is the CPU or motherboard. All other parts have been tested independently.

 

[PCTC2]

Originally posted by: Wedge1
If I am getting no beep codes, would this point to a defective motherboard? I am confident that it is the CPU or motherboard. All other parts have been tested independently.

So you tested your GPU and everything else in a different system? I had a bad GTX260 that would cause my board to not even reach POST for beep codes.

 

[MagnusTheBrewer]

You might also check the case connections to make sure all are properly oriented to pin one. I once had a no post on a new build that stymied me for most of a day because I assumed the connector labels indicated proper orientation. Be sure to test outside the box to eliminate any problems there.