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Bad PSU, or is it just a bad powerswitch, or worst?

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February 20, 2008 2:43:44 AM

I have a Dell D051 intel dcpu 3.2. Suddenly at start-up I get a slow flashing light at the power-up button and
nothing else happens unless I hold the button down for 20+ seconds. Then it continues it's normal boot-up.
I have never done more than replace a harddrive in my prior computers and am quickly over my head when it
comes to diagnoses.
Appreciate any insights as to what the flashing light indicates and / or advice.
February 20, 2008 9:48:54 PM

Sounds like the PSU and the easiest to check is to install a different PSU. The problem is that Dell often uses proprietary PSUs, which means a standard PSU won't work or could damage the mobo. There are PSU testers that aren't very expensive but can't recommend one. I'd google PSU testers and see what comes up. cyberguys.com carries, they're like the online Radio Shack for computer stuff. Hopefully, someone else could recommend a good inexpensive one. As far as installing a new PSU, really easy, 4 screws to remove the PSU and plugging in the board and parts. Just check out it's wired before you remove the old PSU
February 21, 2008 2:55:07 AM

Thanks for the heads-up on the "proprietary" aspect. I appreciate your imput.
Related resources
a c 243 ) Power supply
February 21, 2008 10:09:57 AM

Not much need to worry about the "proprietary aspect" with a DX051.
It has an open back design that allows the use of most standard ATX units, and Dell did away with the non standard ATX pinout with the introduction of the P4.
Dell's 375w psu is taller than standard so there will be a gap left when installing an aftermarket unit, but the holes still line up.
Here's a good upgrade;
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
February 21, 2008 11:13:25 AM

I agree. Do not worry about it, a standard ATX should fit. Why not call India and have Dell do warranty on your computer over a 1-900 line :)  Just kidding.

Anyways I'd get a new PSU. Even if that's not the problem, you want a good PSU. The most important part of any computer is a quality power supply, not the CPU speed like most people believe. The standard DELL ones are crap. The Antec mentioned above is fine, or even upgrading to an Antec NEO with modular cables is even nicer.
a c 121 ) Power supply
February 21, 2008 11:38:32 AM

The only possible gripe you're almost certain to have with that Antec Earthwatts PSU is it has a loonnngg cables. If you don't care or can stuff them somewhere in that Dell case, it is a nice steady and very quiet PSU.
February 23, 2008 7:19:34 PM

I put in an Antec "Earthwatts" 500w (loong cables included) and everything seems to be back 100%.
Thanks everyone for your input.
!