Motherboard power switch

dchurch24

Hi,

I have an old PC that work were throwing out - minus the power supply & ram.

I have taken it home to fix for a friend at work - I have donated a power supply from another machine and some ram.

Sadly, the ram I had spare was a bit old, so I ended up swapping the motherboard for an older one that I had laying around.

I have wired it all up and installed linux on it for him (he's skinter than I am, so a Windows licence is a no-no).

The trouble is, I don't think I have the power to the motherboard quite right - I can turn it on, by turning the switch on the power supply on - it never works the first time, so I have to turn it off and on a few times before the machine actually powers up.

I haven't connected the HDD LED's etc..., and have only connected a few of the other wires from the switch, reset, etc...

I was wondering if anyone has a diagram that I could follow to get the rest of the wires on the board - I am assuming that this is the cause of the intermittent powering up.

I hope I have made myself clear, reading it back it seems a little confusing.

T4i

What motherboard is it? Should be a model number on the PCB.

dchurch24

AOpen AK33 ? (Is that it?)

IvanOpinion

I have seen this symptom before when the power supply was just not up to the job of powering the motherboard and everything else ... if this is the case then it is unlikely that the power supply is going to last very long. Have you tried the motherboard with a different power supply and the power supply with a different motherboard?

Ivan

dchurch24

I have tried the power supply with a Intel P4 motherboard with a decent graphics card on it, a DVD RW, CD Drive, TV Card etc... and it works fine (and for many hours at a time).

But it's the only ATX PSU that I have left, so I haven't tried the board with a different power supply. It's only running an AMD 750, with no CD drive, an AGP graphics card - old, nothing special - so I think it should be ok - it's 350w.

I think it's just I haven't connected all the wires properly - certainly there are about 6 or 7 that I just haven't even plugged in.

T4i

The whole manual is available in PDF ftp://ftp.aopen.com/pub/manual/mb/ak33/ak33-ol-e.pdf

dchurch24

Fantastic!!!!

Straight away, I can see some of the ones I hadn't plugged in!!

On the board, only about half were marked.

Thank you very much.

UPDATE: Worked a treat!! Thanks again.