Tom's Hardware > Forum > CPU & Components > CPUs > New P4 power system, 300W PSU?
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eden   12-18-2002 at 10:50:10 PM

My friend currently has a 300W P3 733MHZ system (probably had that PSU when he built it), an Audigy, a TNT2 4X, a 20GB drive, home network, TV Tuner card and some other things.
His upgrade will be to a P4 2.4GHZ B with a P4PE, an R9500PRO, 512MB PC2700 DDR.
He claims it will run easily on 300W.
I have been telling him that this is not a good idea.
He will overclock it as well. First I don't know the PSU brand name nor does he, but it would seem to me that it would still be a much better idea to couple that power system with a 350W PSU from say Antec. At least at the same time he is having some future-proofing. He still persists that 300W is more than enough.

Tell me what you guys think, IMO 350W is needed.

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tuesday630   12-18-2002 at 10:58:52 PM
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I'd say you're going in the right direction. You might want to look at the following thread where we recently discussed something similar:

http://forumz.tomshardware.com/mod [...] d=1&code=1

Reply to tuesday630
eden   12-18-2002 at 11:15:55 PM
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This just in, he took a pic of the PSU, it's an L&C PSU. Never heard of that brand. I would classify it as generic for now.

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tuesday630   12-18-2002 at 11:34:10 PM
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Any idea what the voltage distribution is on the 3.3, 5 and 12V? A minimum power user distribution is 26A to 30A for 3.3V, 30A for 5V and 15A for 12V.

But, then again, as THG points out very well, not all PS live up to their ratings.

Reply to tuesday630
Black_Cat   12-18-2002 at 11:48:31 PM
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Danger! Danger! I have seen 3 L&C power supplies blow capacitors. One actually caught fire. They're dangerous.

To start press any key. Where's the "any" key? --Homer Simpson.

Reply to Black_Cat
LED   12-18-2002 at 11:53:41 PM
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You'll need an adapter to use that old power supply with a new Intel board.
<A HREF="http://www.motherboardexpress.com/specs/spec_adv.cfm?ProductID=9048" target="_new">http://www.motherboardexpress.com/specs/spec_adv.cfm?ProductID=9048</A>

EDIT: The price for that adapter is insane. The link is just an example of what I'm talking about. You should be able to pick it up locally cheaper.

[-peep-].<P ID="edit"><FONT SIZE=-1><EM>Edited by LED on 12/18/02 05:56 PM.</EM></FONT></P>

Reply to LED
eden   12-19-2002 at 03:07:11 AM
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Thing is, the P4PE has a 4-pin to 12V converter socket, so in fact any user with an old PSU can use that to his advantage than get a new 12V ATX PSU.

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eden   12-19-2002 at 03:08:44 AM
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I don't know personally but that is an interesting question. Indeed he should check these out with his Asus Probe or MBM5.

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