I have just built a new computer (pretty much). It comprises of:

Coolermaster Centurion Box
Hiper R-Type PSU
ASUS A8N-sli Premium M/B
Athlon XP 64 +3800
Huge Gigabyte sink
XFX 7300GT Graphics
All drives from my old computer
New Kingston Ram (1GB)

My son basically inherited my old box. Put his HDD in and it worked fine, didn't even have to reload XP. When I turned my box on it all lit up and seemed to start as it should, HDD activity but didn't POST. Also, nothing on the monitor, just stays in standby as if nothing there. Does not go to 'no signal' though.

I've checked all the plugs. I've cleared the CMOS. I have tried with one HDD, no CD Drives and EVERYTHING in between. I took all cards out and even tried without anything in at all. The RAM works fine in my son's box and I've tried various combos of that. I tried the PCI e card in the other slot too. This board has .WAV POST announcments but nothing is heard. I tend to think the board is dud but....

Has anyone had this problem or similar. I don't want to send this back unless I have to becaus it is all hassle.

CheersBad board, bad PSU, or bad build. That's pretty much all of the options. Have you ever put a system together before?

MAKE sure the mobo is not shorting out on the case. (You should really test the BASICS - mobo, CPU/fan, 1 STICK RAM and video BEFORE even thinking about putting it in the case.)I've made many, many systems although I'm certainly not an expert. Let's face it, it's not difficult buying the bits and sticking them together.

The PSU I'm sure is fine. It was bloody expensive (not always a guide to quality I know) and everything seems to start working apart from the M/B.

The build? Well I'm pretty sure that I have checked everything that I can. I have never done a build where I get nothing on the SCREEN at all. As I said, the monitor doesn't come out of standby.

M/B... well I think that's the problem, but I wouldn't really know how to find that out. I can't replace either board or card as this is the first time I have gone PCI-e and have nothing to replace them with.

I will take your advice and test them on the tabletop (albeit a bit late maybe) and hope I don't kill myself!!!Man, I hope this don't happen to me when I do mine !!!
:-/Check it with minimal parts BEFORE you mount everything in the case.