I'm having problems putting together my new setup and wondering if any of you could suggest where the problem lies.

I have a new A-Bit KT7A m'borad, 256mb RAM, and an Athlon XP 1800 processer with heatsink and fan. I also have an old graphics card and HDD that I know are working correctly.

At the moment I've added the m'board to the case and connected up the memory, processer, heatsink and fan. I've added my old graphics card to a PCI slot and my old HDD. To start with I connceted this all up with the new 350w power supply which when turned on only ran for about 10 seconds before cutting out. To eliminate the possability that the power supply may be defective I tried my old 230w power supply and this is fine, it runs continuously, however when I plugged this into the monitor - nothing at all.

Just wondering if you have any suggestions as to where the problem lies? Is the 230w power suply not powerful enough just to boot up CMOS? I'm wondering if I should go today and but a new 350w power supply to see if
this is the cause though I'd value your opinion first.

I *believe* that atleast a 300Watt p/s is recommended for that class of CPU. What was your old system?

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I've now established that the original 350w PSU is working fine by trying it on another computer. It's looking like a m'board problem

Make sure the m/b is grounded well within the case. Use all screws and standoffs. Is this a generic p/s and a new or old case?

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The case is brand new, the power supply came with it. When I first plugged it all in and the PSU cut out after 10 seconds I assumed it was the PSU, However after testing everything on another machine it seems the m/board and or the processer is at fault. It all seems to be well grounded, everything is in the right place.