I was given a fairly new Dell Dimension 4400 that was
hit by lightning. The modem was fried and the power
supply is dead. Because the other individual components
work(hard drive, video card, etc.) I am hoping that the
motherboard/ram/cpu are still good. I've read the in
some systems Dell uses their own wiring scheme but
this P4 system looks standard. Anyone know for a fact?
Dell's site was useless as per usual. Thanks.

<font color=purple>AMD XP 2200+, A7N8X Deluxe, 512mb PC3200 Corsair XMS DDR, Geforce3 Ti-500, Audigy Platinum, TDK 48x CDRW, Lite-On 16x DVD, XP Pro SP1, and more neon than a ghetto sled </font color=purple>

Yes this is true... but IIRC it is possible to rewire a normal ATX PSU so it can be used on Dell boards. Try to search this part of the forum... I'm pretty sure someone posted the rewire sceme here a couple of months ago.

My CPU fan spins so fast that it creates a wormhole

I've heard the latest Dell systems use ATX power, but I know as a fact the earlier ones DID NOT! And the earlier "non-ATX" power supplies came with an ATX power connector! What can you do then? Well, we know that if your Dell motherboard uses the extra 6-pin flat power connector (in addition to the "ATX" appearing connector) it's non standard, so let's assume that if it doesn't use it it's standard, and hope we're right?

Perhaps the wires on your supply are color coded?

<font color=blue>Watts mean squat if you don't have quality!</font color=blue>

Yeah Crash, I figured the color coding would be sufficent
to tell if it was standard or not. Of course, with Dell
being Dell, who knows.

Luckily, I actually came across endpcnoise.com this
morning and the page with adapters for Dell systems
confirmed that the 4400 series are standard. I hooked
up a "known to work" Antec Smart Blue to it and the power
LED on the motherboard came on but it still doesn't boot.
I guess it's fried. Luckily, the 80GB Seagate Barracuda
IV hard drive is good so it's not a total loss. I guess
I'll pull the other componenets. If I knew that the CPU
was good then I would get a cheap P4 motherboard.

<font color=purple>AMD XP 2200+, A7N8X Deluxe, 512mb PC3200 Corsair XMS DDR, Geforce3 Ti-500, Audigy Platinum, 230GB of HD's, TDK 48x CDRW, Lite-On 16x DVD, XP Pro SP1, and more neon than a ghetto sled </font color=purple>

Yep, confirmed that some Dell computers, including YOURS, DO use ATX power supplies!

I doubt the CPU is fried. What CPU is it?

In fact, if the board fried first, the power supply might have lived. So unless you're sure the old supply is fried, I'd retest it.

Who really knows what parts are fried and which lived without testing them?

<font color=blue>Watts mean squat if you don't have quality!</font color=blue>