You're in luck. You don't need any special PSU. Your old Creative ISA soundcards don't need the -5V rail. There is a really old 8-bit Creative SoundBlaster that needs it, but I can't remember the exact model number. However, it's not on your list of old ISA hardware. I believe that the old Roland LAPC-i also needs the -5V rail.

However, there is a really nice modern quiet efficient ATX PSU you can buy, that still includes the -5V rail! It's here. They've even got some left in stock. I've bought them from here before, and so I can recommend the seller and the product.

If you want to use a new ATX PSU with an old AT power socket on an old mobo, that's easy too. Here is an adapter on ebay. I've bought them from that seller before, and I can recommend them.

Thanks for the information! Actually, I don't need an AT -> ATX adapter because the motherboard has both AT and ATX power on it already. Thanks anyway.

Sorry for digging this up but what was the -5 volt line used for ? All i know is that it's used by some isa cards.
Can i use this motherboard without the -5 line safely ?
Also that were to happen if i accidentally put in a isa card that used the -5 line ?

memsys wrote:

Sorry for digging this up but what was the -5 volt line used for ? All i know is that it's used by some isa cards.
Can i use this motherboard without the -5 line safely ?
Also that were to happen if i accidentally put in a isa card that used the -5 line ?

-5v is only used on the expansion bus, so your motherboard should work just fine without it.
-5v is used by the Roland LAPC-I, the Sound Blaster 2.0, some ISA VGA cards and memory expansion adapters
The system may freeze if you put a card in that uses -5v until you pull it out.

Thanks for the answers !

Anyone know if the -5v rail is used by the MPU-IPC-T?

hi

i can't help specifically but refer to this page:
http://pinouts.ru/Slots/ISA_pinout.shtml

if a card uses B5 on the solder side (reverse) then
you have a requirement for -5v.

it would seem that ancient DRAM boards require
it and it's said also very old NEC floppy controllers.

i can't say i that i have anything that uses it although
B5 is connected on a mediavision jazz16 card i have.

bye

edit:
if this is the card:
http://www.yjfy.com/images/oldhard/sound/MPU-IPC-T_1.jpg
then it would appear not to use B5

I'm looking at my MPU-IPC-T in front of me now and it has the pad for B5 (actually my version has every pad in place and uses a 25-way D-connector for the breakout), but it's not actually connected to any traces.

Your link in your signature... those games you have for download... are they even so-called abandonware? Or aren't they the games themselves?

sklawz wrote:

hi
http://www.yjfy.com/images/oldhard/sound/MPU-IPC-T_1.jpg
then it would appear not to use B5

Thanks very much.

On a closely related topic, modern PSU's that may be considered for our old school rigs include:

1. Nexus NX-3500 (has -5v rail) (end of life / discontinued)
2. Nexus Value 430 (no -5v but similar max current demands on all three +ve rails)
3. Lowest power Seasonic S12II Bronze is also worth a look.