PSU for Older Computer

[Matt84]

I have an old PC that I keep for playing my older games with the following specs:

Intel Celeron 1000A (Tualatin based)
MSI 694T (MS-6309) with ISA Slot
512MB PC133 SDRAM
64MB 3dfx Voodoo 5 5500 AGP
4MB Matrox m3D (PowerVR PCX2) PCI
Creative Sound Blaster AWE64 ISA
80GB Seagate IDE HDD
3.5" & 5.25" Floppy Drives
Iomega 100MB IDE ZIP Drive
Generic 16x/12x/40x CD-RW
Generic 10/100 PCI NIC

Unfortunately the PSU I bought for this machine when I assembled it years ago has given up and all that I have left is some dodgy Mirage BD 500 PSU which I know to be rubbish.

What PSUs are on the market with enough combined power on the 3.3v and 5v rails to power this machine reliably? The old PSU was a Thermaltake 420W with 220W combined on both the 3.3v and 5v. The Seasonic and Antec PSUs I've been looking at all max out at 120W which I'm pretty sure will not be enough. I've been looking at an old ASUS P-50GA which is meant to have 180W on the 3.3vv and 5v and this seems to be verified by an overload test by Hardware Secrets - http://www.hardwaresecrets.com/article/ASUS-P-50GA-500-W-Power-Supply-Review/782/6

What are my options?

 

[Anteaus]

Assuming the connectors work..if you have serious concerns about rails maybe look at a single rail power supply like the Corsair TX?

 

[lsv]

I just picked up a Seasonic 500ET for an old P3 I have here. I figure it'll last another 10 years and I can use it once the P3 stops being used. If ever hah.

 

[Matt84]

Thanks ISV. I looked into Seasonic a bit more and found the S12-II 520w as the 500ET doesn't seems to be available in Australia. It seems even though they rate the 3.3 and 5 volt rails as max 120W, a few reviews showed that it went above that with no issues when there is little load on the 12v rail. I bought one and so far so good.