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I'm trying to hobble together some old parts so that I can play around with Ubuntu, but I think my old PSU has finally bit the bullet. Most of the parts are fairly old (Core 2 Duo E6600, 4GB DDR2, Audigy 2 ZS, couple of old 160GB SATA drives), with a fairly recent video card (GTS 450). With that being said, I'm not sure exactly what I would need for this setup. Any help would be appreciated.

Im guessing a 400w PSU would be fine for that setup. What makes you think your old PSU is dead?

$47 -20MIR Corsair CX400 v2 (28 A)
$49 Antec EarthWatts EA-380D (28 A)
$55 Antec EarthWatts EA-430D (32 A)
$62 -10MIR Corsair CX500 v2 (34 A)
$70 -7 code "APRS10" -20MIR PP&C Silencer3 400 (30 A)
$65 Antec EarthWatts EA-650 (54.2 A)
$70 SeaSonic S12 II 430B (30 A)
$74 SeaSonic S12 II 520B (40 A)
$85 FSP Aurum 500 (36 A)
$90 -10MIR Corsair 650TX v2 (53 A)
$110 -15 code "EMCNFHN54" -15MIR Corsair 650TX (53 A)
$110 -11 code "APRS10" -20MIR Mushkin MKNPSJL800 (64 A)
$100 -20MIR PP&C Silencer2 750 (62.4 A)
$116 Antec EarthWatts Pt EA-550 (43 A)

Disregard....the computer booted. For whatever reason, it wouldn't work when I hooked up the front panel connectors manually. This is despite me unplugging, double and triple checking to make sure that they were connected properly. When I use the connector block, everything works great. Odd. Ubuntu 12.04, here I come.

Dizik wrote:

Disregard....the computer booted. For whatever reason, it wouldn't work when I hooked up the front panel connectors manually. This is despite me unplugging, double and triple checking to make sure that they were connected properly. When I use the connector block, everything works great.

Usually means that either something in the front panel assembly is loading down the +5VSB rail so much that the board can't return "power good" to the PSU, or else something in the front panel connector assembly has a ground short.