Just upgraded my PC last night.

FROM:
Gigabyte GA-7ZXE KT133
Athlon T-Bird 800Mhz/512PC100/13Gig
300W PS

TO:
MSI K7N2Delta NVIDIA NForce2
Athlon XP 2400/1GigPC2700 DDR/160Gig
300WPS

Verified all connections are good, used a grounding strap while I did everything.

When I turn on the PS the fans rotate for an instant as if someone just blew on them...but when I hit the power up button...nothing. No fans, no beeps...nothing.

Any ideas? Is my PS too small to kick start this thing?
Thanks in advance!


:(

Sounds like a ground problem. If you have the whole thing hooked up, first try a bare bones boot - CPU and fan, RAM, Video, keyboard - nothing else. If it powers up, add one thing at a time, starting with floppy, then hard drive etc until it is completely assembled or it stops again.

If a bare bones boot has the same result, take the motherboard out of the case and try the same bare bones boot on a non-conductive surface such as a tabletop or in cardboard. A speaker is nice, but not mandatory and all you need is to boot long enough to see a picture.

Usually you can stand the case on its side so the power cables will reach and use a flat screwdriver to briefly short the pins for the power switch.

BE VERY CAREFUL WITH THAT SCREWDRIVER!

If it powers up out of the case, you have a ground problem and need some cardboard washers between the motherboard and the screws that hold it into the chassis. Computer shops should have them, a quarter should get you enough of them to do 2 computers...

Thanks Pete,

I'll pick up some of those on the way home today.

I've been reading some posts about power problems at MSI's site. One of the posts triggered my memory that last night when I was putting the new board in, I was missing one of the red-felt washers that go under the motherboard-to-case screws. Could that connection cause a short?

Many of the newer motherboards have metal rings surrounding the stand-off screw holes. This design puts the copper traces on the board out of danger of being shorted...

However, many cases come with stand-offs "default" located which might not line-up with the holes on any given motherboard...These can then come into contact with traces and a short could result...

I would check these over diligently and make sure that your stand-offs are located only where they are designed to do so...

As a matter of course, it's not a bad idea to insulate the stand-offs anyway as Pete described earlier...

"use a flat screwdriver to briefly short the pins for the power switch"

Not sure exactly what you want me to do with the screwdriver??

You touch the screwdriver for a moment to the 2 pins that are used for the computer switch... Make sure you touch both at the same time and only for a moment, this will have the same effect as pushing the switch when it is connected.... Be careful to hold an insulated area of the screwdriver or you might have a shocking experience!!!:eek:

Well, I went out a bought a new PSU and it's working now. While I was perusing all the PSU choices yesterday, a customer at Mirco Centre told me that my problem was that I needed the 12 volt 4-Pin molex connector...my old PSU didn't have it.

So now I have both the ATX and the 4Pin Molex plugged in to my MOBO. I'm kinda confused though because I thought the 4PIN was for Pentiums.

Anyway, my new problem is my RAM. Please see my new post entitled Bad Ram or DIMM?

Thanks guys!!

I have heard that AMD boards have recently started using that 4 pin connection.... Apparently your board is among them...

Yep P4s and the latest Ahtlon XP's both require that 4 pin connector.