PSU compatability

I need to replace a failing 350W PSU. My MB is a Chaintech 7AJA Socket A
with 1Ghz Athlon. What do I need to look out for in PSU specs to ensure
compatability (other than 20-Pin plug ) ?

TIA,

Pete

Previously BillyPIg <> wrote:
> I need to replace a failing 350W PSU. My MB is a Chaintech 7AJA Socket A
> with 1Ghz Athlon. What do I need to look out for in PSU specs to ensure
> compatability (other than 20-Pin plug ) ?

To be safe, make sure that the current ratings on 3.3V, 5V and 12V are
the same or above the old PSU. You may also need to have -5V, which many
modern PSUs do not supply any longer. Check the mainboard manual
for that.

Arno

On Tue, 11 Dec 2007 21:52:51 UTC, Arno Wagner <> wrote:

> Previously BillyPIg <> wrote:
> > I need to replace a failing 350W PSU. My MB is a Chaintech 7AJA Socket A
> > with 1Ghz Athlon. What do I need to look out for in PSU specs to ensure
> > compatability (other than 20-Pin plug ) ?
>
> To be safe, make sure that the current ratings on 3.3V, 5V and 12V are
> the same or above the old PSU. You may also need to have -5V, which many
> modern PSUs do not supply any longer. Check the mainboard manual
> for that.

And make sure that there are enough output cables and sockets of the
right type for whatever you have installed (not just the motherboard,
but disks etc.). Or that you are prepared to fit adaptors and/or
splitters.

--
Bob Eager
begin 123 a new life...take up Extreme Ironing!

Bob, Arno,

Thanks for the advice - just what I needed.

Pete

Previously Bob Eager <> wrote:
> On Tue, 11 Dec 2007 21:52:51 UTC, Arno Wagner <> wrote:

>> Previously BillyPIg <> wrote:
>> > I need to replace a failing 350W PSU. My MB is a Chaintech 7AJA Socket A
>> > with 1Ghz Athlon. What do I need to look out for in PSU specs to ensure
>> > compatability (other than 20-Pin plug ) ?
>>
>> To be safe, make sure that the current ratings on 3.3V, 5V and 12V are
>> the same or above the old PSU. You may also need to have -5V, which many
>> modern PSUs do not supply any longer. Check the mainboard manual
>> for that.

> And make sure that there are enough output cables and sockets of the
> right type for whatever you have installed (not just the motherboard,
> but disks etc.). Or that you are prepared to fit adaptors and/or
> splitters.

Good point.

Arno

Previously BillyPIg <> wrote:
> Bob, Arno,

> Thanks for the advice - just what I needed.

> Pete


You are welcome.

Arno

> >> You may also need to have -5V, which many
> >> modern PSUs do not supply any longer. Check the mainboard manual
> >> for that.

This certainly seems to be the case: After much searching, I finally settled
upon a Jeantech 350W PSU, because it was one of the few I found that did
support -5V. Alas, they appear to have updated the model; the one in the
shop did not have a -5V output. Back to google.

Pete