Solve : PSU Installation Problem?

1.	Solve : PSU Installation Problem?
Answer» Hi I had a problem with my computer switching off, and I was told that this was because my PSU was not working properly. I decided to have a go at replacing the unit, and bought an x power atx 450td to replace a 300 watt PSU. I installed the PSU, connected everything, and all hardware is working fine, exept that I have no output to my monitor. The mother board is a 20 pin connection, which holds my graphics card and has no other power supply. other conections are to the dvd WRITER, dvd drive, floppy, and hard drive. All appear to be working fine, but I can't be sure about the hard drive. from memory the computer spec is pentium 2 160 gb hard drve windows xp sp2 ATI radion 9200 Graphics card Thanks in advanceDoes the vid card have a 4 pin power connection on it ? ? If so you need a 24 pin PSU to run that card.Quote from: corneilius on August 06, 2007, 11:36:01 AM ... the dvd writer, dvd drive, floppy, and hard drive. All appear to be working fine, but I can't be sure about the hard drive. You mean you can't be sure about the hard drive because you can't see anything on your monitor, right? Do you have an LED on front of your computer that would normally be flickering while the hard drive is running? Does it appear to be working during startup? Do you hear any sounds, such as the Start Windows tune? Have you checked your video card to verify it's properly seated in the slot? It may have gotten dis-located during the PSU installation. Thanks for the replies Patio, the 300 watt unit I took off only had a 20 pin conector to the motherboard, I have looked at the graphics card and there is no obvious connection for a 4 pin conector. Soybean, yes I can't be sure about the hard drive because there is no signal to the monitor, but the LED is working as it should when the computer is turned on. Is it possible to wire the PSU to the different components incorectly?I have connected the mother board with the 20 pin, and the dvd writer, dvd drive, floppy and hard drive with 4 pin some which are 'daisy chainned'. I have other conectors which are not used, but the 300 watt unit had these also. I will check on the Graphics card. Thanks again.Is this a Dell ? ?No the computer was bought new from a trader at a computer fair, so is not 'branded'.What brand PSU ? ? I've seen duds right out of the box. In general i stay away from the cheap ones...Not meaning this as an INSULT, but have you checked the obvious yet? Was the monitor cable jostled loose during the repair? Is the video card seated properly? What happens when you plug a different monitor into the machine?Talk about STUPID. checked the seating of the card and realised there is a monitor output from the card, as well as an output from the motherboard. Guess who had linked my monitor to the motherboard instead of the graphics card as it had been in the first place. Duh!!!! Everything is working ok now. Thanks for all the help posted by everyone.

Answer»

Hi
I had a problem with my computer switching off, and I was told that this was because my PSU was not working properly. I decided to have a go at replacing the unit, and bought an x power atx 450td to replace a 300 watt PSU.

I installed the PSU, connected everything, and all hardware is working fine, exept that I have no output to my monitor. The mother board is a 20 pin connection, which holds my graphics card and has no other power supply. other conections are to the dvd WRITER, dvd drive, floppy, and hard drive. All appear to be working fine, but I can't be sure about the hard drive.

from memory the computer spec is

pentium 2
160 gb hard drve
windows xp sp2
ATI radion 9200 Graphics card

Thanks in advanceDoes the vid card have a 4 pin power connection on it ? ?
If so you need a 24 pin PSU to run that card.Quote from: corneilius on August 06, 2007, 11:36:01 AM

... the dvd writer, dvd drive, floppy, and hard drive. All appear to be working fine, but I can't be sure about the hard drive.

You mean you can't be sure about the hard drive because you can't see anything on your monitor, right? Do you have an LED on front of your computer that would normally be flickering while the hard drive is running? Does it appear to be working during startup? Do you hear any sounds, such as the Start Windows tune?

Have you checked your video card to verify it's properly seated in the slot? It may have gotten dis-located during the PSU installation.

Thanks for the replies

Patio, the 300 watt unit I took off only had a 20 pin conector to the motherboard, I have looked at the graphics card and there is no obvious connection for a 4 pin conector.

Soybean, yes I can't be sure about the hard drive because there is no signal to the monitor, but the LED is working as it should when the computer is turned on.

Is it possible to wire the PSU to the different components incorectly?I have connected the mother board with the 20 pin, and the dvd writer, dvd drive, floppy and hard drive with 4 pin some which are 'daisy chainned'. I have other conectors which are not used, but the 300 watt unit had these also.

I will check on the Graphics card.

Thanks again.Is this a Dell ? ?No the computer was bought new from a trader at a computer fair, so is not 'branded'.What brand PSU ? ?

I've seen duds right out of the box.

In general i stay away from the cheap ones...Not meaning this as an INSULT, but have you checked the obvious yet?

Was the monitor cable jostled loose during the repair?

Is the video card seated properly?

What happens when you plug a different monitor into the machine?Talk about STUPID. checked the seating of the card and realised there is a monitor output from the card, as well as an output from the motherboard.

Guess who had linked my monitor to the motherboard instead of the graphics card as it had been in the first place. Duh!!!!

Everything is working ok now. Thanks for all the help posted by everyone.

Solve : PSU Installation Problem?

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