Quick Starting PSU

It's so quick, that all I have to do is plug it into the wall outlet. Motherboard cooling fans start up, green light shows on the motherboard, the CD runs and I feel the hard drive working. However, I have no functioning screen, keyboard or mouse. I did install another power supply and I get the same results. How can I resolve this issue without being able to see or navigate in any way? Any ideas on how to fix this problem?

 

I have read this post on a few occasions now, and I am not sure what you mean to say.

Could you try to re-explain or re-word your dilemma and what it is you're trying to accomplish or otherwise fix?

 

Well, normally when one starts a computer all that is required is pressing the power button. With me, as soon as I just merely plug the power supply into the wall outlet, the computer fires up. Unfortunately, my screen, keyboard and mouse are not recognized. Plus, the power button doesn't work.

This morning I unattached everything leading to the motherboard, then plugged in the power supply. As normal, it wouldn't go on as "I guess" it has no command to do so. I'm thinking it has something to do with the motherboard, because as soon as I attach the PSU wires to it, it comes to life. However, it bypasses the power switch, and just about everything else. If it is a motherboard issue, is there a way solve this matter?

 

What is the make and model of the PSU?

Also, the motherboard too.

 

The motherboard is an Asus P5RD1-VM.

Power supply is a Bestec ATX-250

 

From what I see, the Bestec ATX-250 does not have a power switch on it.

Power settings in the BIOS, does it direct the computer to power back on automatically after a power interruption?

 

A power switch per se? No, none that I can see. It does have the usual 115-230 selection in the back. I also tried another power supply and it did the same thing.

I can't answer your second question, as since the monitor isn't functioning, as well as the keyboard and mouse, I can't see anything.

 

Integrated video, or by card?

 

Integrated

 

It sounds like your motherboard works, but doesn't?

You cannot provide any user input, until it reaches windows, or just nothing comes through?

 

All I know is that it powers up and the green light on the motherboard lights up. Hard drive is running but I simply can't check to verify anything whatsoever without a functioning screen. Why would the monitor, keyboard and mouse not work? If I can figure that one out, then I could possibly move forward. Let me ask you, can a corrupt hard drive disturb the BIOS settings?

By the way, thanks for helping!

 

Very unlikely.

A voltage spike or sag could cause damage potentially.

To me, this sounds like a motherboard (south bridge) issue.

No inputs, no outputs, but powers up. The south bridge controls all of the slower components in the computer, such as USB, PS/2, PCI, etc. Although it doesn't have to be the south bridge that has gone bad.

It's looking like you'll need a replacement motherboard.

And, if you have a PSU tester, you could rule that out.

Signs really point to the motherboard having a failure somewhere.