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Replace Dell power supply

K

Kremlar

Golden Member
How can I tell if the Dell I have here uses a standard ATX or proprietary power supply?

My understanding is that many Dells use a non-standard pinout.

I have one with a suspected dead power supply. It powers up, but there's no display - completely black screen.

With a replacement ATX power supply, it starts to boot Windows but then the screen goes blank at random times during bootup.
 
The dead giveaway is that the Dell P/S may have a non standard connector to the motherboard. Something other than the standard 20/24 pin m/b connector and the other 4 pin connector for processor power.

 
That doesn't sound like a power supply issue.
If you tried a replacement, and all the pins actually connected, and you're still having booting issues, it sounds like some other hardware issue.
I had a Dell Dimension 3000, and replaced the proprietary power supply with an ATX 450W power supply, everything worked fine. It all fit and worked.
 
It's a standard ATX connector, and the pinout looks the same comparing the 2 connectors at first glance.

It's a Celeron, about 1.5 years old - YES - it is an Optiplex GX270.

Is this a common issue??
 
How depressing.

I noticed a couple caps bulging, but none leaking. I was suspecting a motherboard, but thought it odd that a new power supply changed the symptoms.

Thanks for the help guys!
 
In responce to your PM.
Topcat the site Admin. at badcaps.net has recapped several HUNDREDS of GX270 boards.
No kidding. He might have one to ship you in exchange. Email him for details.
He will not cross ship.
Read in total, http://www.badcaps.net/faq/ You might seriously consider opening the PSU
for inspection after reading this faq. It should all be looked over. 😉
More reading, http://www.badcaps.net/Ident/

Pinouts http://www.jonnyguru.com/atx/ ...Standard ATX case size = 150X140X86mm.
 
Rather than making a new thread I though I would jump in and ask a question.... I have a Dell Dimension 9100 from late 2005 with a Pentium D 820 CPU...right now I have three hard drives in it as well as a dvd burner. I want to make it a media center pc and add in another hard drive and another dvd drive and maybe a better video card...I am guessing the power supply that came with it is not going to handle the load so I am thinking about replacing the power supply with something stronger but I am not sure if you can do that... Has anyone done it with a 9100? Thanks
 
I'm trying to replace ps on Optiplex GX 240 and I can't just swap with any regular ps. I have several I have tried and they test fine until I plug the main power in the mobo. Then the accessory plugs for hdd and cd don't work. When I unplug the main molex from board then they work fine. A couple shops told me you need compatible supplies. If anyone can confirm this please do so.
 
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