Power supply problems???

[matt1biz]

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.

 

[snidy1]

I would try a new PS. Did you change the settings in BIOS for a PCI video card instead of AGP?

 

[DrakeTechno]

I'm not sure what's causing your issue... I don't think that it's a BIOS setting though. According to your motherboard's manual, your BIOS is capable of auto-detecting whether you are using an AGP or PCI video card. There's always the possibility that there is a timing conflict between an old video card and the motherboard that prevents it from working properly. Is there another video card you can use for testing? Also, do you have a PC speaker hooked into the motherboard, and are you getting any beep codes when you boot up?

 

[kursplat]

sounds like the "CPU fan protection" . do you have a 3 wire fan pluged into the fan 1 header ? if not connect one. if it starts go to PC health status and turn it off. if you don't want it.
good luck

EDIT: welcome to ANANDTECH