PSU Failure??

[ben_93]

Today, I turned on my pc on at the wall, and it spun the fans as usual, but It would not power up! So I turned it off and back on at the wall, and it never responded, basically no power going to the MOBO, or fans etc. I have ordered a New PSU, and I was wondering if this would of damaged the rest of the system (MOBO, HD, ETC)?? Via a power surge?
Thanks in advance, Ben.

[jlreich]

The PSU is definitely suspect, but there are other things that can cause the system to not turn on.

Did you get a power surge? If yes did you have the system plugged into a surge protector?

I turned on my pc on at the wall
At the wall? You use the plug to turn the system on and off? Do you properly shut the system down?

[Sylvander]

1. "spun the fans as usual"
So the PC wasn't totally "dead"; there was some power getting through, the on-switch was therefore functioning, but perhaps the PSU wasn't fully functional.

2. "but It would not power up!"
What makes you think that?
The fact that there was no display on the monitor doesn't mean it didn't power on.
Was there any sign the POST at least started? Any LED's blinking?

3. To test whether the POST starts, runs, and gets so far as the 1st RAM test...
(a) Disconnect all unnecessary hardware to leave connected only the bare essentials as follows:
PSU, mobo+CPU+fan+heatsink, internal speaker

(b) Ideally the mobo would be out of the case on a non-conducting surface [to eliminate possible shorts to the case].

(c) If you trust the on-switch, then use it, otherwise short the pins on the mobo.

4. If the POST gets to the 1st RAM test and that fails, the POST should generate RAM test warning beeps, and if the internal speaker is functional it should sound those.
That will tell you that power is getting through, and the POST is starting, running, testing, warning.

5. Then you [shut down] re-connect one hardware item [at a time], and restart.
(a) Add the video card - the RAM failure beeps should still be generated.
(b) Add 1 stick of RAM in the 1st slot - the RAM failure beeps should cease.
(c) Continue connecting necessaries one at a time.
(d) Reset the BIOS defaults after each PCI card is connected [so as to make the BIOS "Force update the ESCD" to provide its resource requirements].

6. "I was wondering if this would of damaged the rest of the system"
NO, it won't.

[ben_93]

The PSU is definitely suspect, but there are other things that can cause the system to not turn on.

Did you get a power surge? If yes did you have the system plugged into a surge protector?

NO

At the wall? You use the plug to turn the system on and off? Do you properly shut the system down?

Yes all the time..



1. "spun the fans as usual"
So the PC wasn't totally "dead"; there was some power getting through, the on-switch was therefore functioning, but perhaps the PSU wasn't fully functional.

When you turn it on (by the plug) the computer spins the fans for about 1 second, and then goes off again, then you can power it up via the power button on the case.
(usually)
2. "but It would not power up!"
What makes you think that?
The fact that there was no display on the monitor doesn't mean it didn't power on.
Was there any sign the POST at least started? Any LED's blinking?

No the computer would not turn on, there is no response from the power-button, and now when I turn it on at the plug, it doesn't even spin the fans for a second like it used too.

3. To test whether the POST starts, runs, and gets so far as the 1st RAM test...
(a) Disconnect all unnecessary hardware to leave connected only the bare essentials as follows:
PSU, mobo+CPU+fan+heatsink, internal speaker

(b

) Ideally the mobo would be out of the ce onon a non-conducting surface [to eliminate possible shorts to the case].

(c) If you trust the on-switch, then use it, otherwise short the pins on the mobo.

4. If the POST gets tthe e 1st RAM test and that fails, the POST should generate RAM test warning beeps, and if the internal speaker is functional it should sound those.
That will tell you that power is getting through, and the POST is starting, running, testing, warning.

5. Then you [shut down] re-connect one hardware item [at a time], and restart.
(a) Add the video card - the RAM failure beeps should still be generated.
(b) Add 1 stick of RAM in the 1st slot - the RAM failure beeps should cease.
(c) Continue connecting necessaries one at a time.
(d) Reset the BIOS defaults after each PCI card is connected [so as to make the BIOS "Force update the ESCD" to provide its resource requirements].

6. "I was wondering if this would of damaged the rest of the system"
NO, it won't.

Thanks for your help guys, answered your questions in red, I have tried the PSU In another PC, and got no response, so I have come to the conclusion that it is the PSU, and ordered new one.... ;)
Cheers for your help.

[pcamateur]

Thanks for your help guys, answered your questions in red, I have tried the PSU In another PC, and got no response, so I have come to the conclusion that it is the PSU, and ordered new one.... ;)
Cheers for your help.

You should have swapped the power supply of the known good computer to the power supply of the defective computer and not the other way around.:(

[jlreich]

It would be nice if you tried a good unit in your system, but since yours didn't work in a known good system you can feel pretty good about a new PSU taking care of the problem. ;)