Replacement PSU

Iconic

I have got an old Philips iqon computer which needs a replacement PSU.

What do I need to look for? The old PSU has a reference GPS-250AB-100K Rated 250w Peak 300w. Is this a standard ATX unit?

-TangleFoot-

Take it out and measure it.

jaydeeuk1

If its really old, it could be an AT unit. These have different power connections to an ATX psu (though some might come with both), so you'll either need to search for an AT compatible PSU, or get a converter.... Only if it is AT of course

JasX

Check what type and number of connectors it has on it will be a good start

http://img.tomshardware.com/us/2005/10/25/sytrin_nextherm_ics_8200/nextherm-psu3.jpg

If it has a single 'big' connector for the motherboard how many pins does that have too (typically 20-24)

EDIT you can also tell if its an AT or ATX powersupply by looking where the power switch on the front of your computer is wired to, if its wired to the motherboard its an ATX power supply, if the power switch goes directly to the PSU its an AT

http://en.wikipedia.org/wiki/Power_supply_unit_(computer)

Iconic

Many thanks for the replies. It's got a single 'big' connector for the motherboard with 20 pins!

I was going to dump the machine until I saw some PSU's at a car boot sale this morning.

The bloke had four and I asked how much and he said £1 each.

I then said I didn't know if they were the correct ones and he said you could have the four for £2!! Being a tight '.....' I I didn't take him up on his offer but now they all looked like the ones I need!

Is the rated and peak wattage of any importance?

Iconic

JasX wrote: »

EDIT you can also tell if its an AT or ATX powersupply by looking where the power switch on the front of your computer is wired to, if its wired to the motherboard its an ATX power supply, if the power switch goes directly to the PSU its an AT

I don't want to disconnect the PSU until I get the replacement. This will ensure I get the right wires in the right place! You cannot see where the
power switch on the front of the computer is wired to as all the wires come out of the PSU in the same place!

-TangleFoot-

Iconic wrote: »

I don't want to disconnect the PSU until I get the replacement.

Just stick a ruler in there then. If it measures 150mm by 86mm on the side with the cables coming out, it's standard ATX size; the length from front to back can vary.

You should be able to distinguish between AT and ATX with the help of this guide, but in all likelihood you have one of the latter. In such cases, the power button is connected to a header on the motherboard.

Iconic

-TangleFoot- wrote: »

Just stick a ruler in there then. If it measures 150mm by 86mm on the side with the cables coming out, it's standard ATX size; the length from front to back can vary.

You should be able to distinguish between AT and ATX with the help of this guide, but in all likelihood you have one of the latter. In such cases, the power button is connected to a header on the motherboard.

Great, thanks it's an ATX :T It measures 150mm x 86mm and it's a 20 pin ATX main power cable exactly as shown in your attachment.

I bet the bloke has got rid of them all now but I will know what to look for next time:beer: