Tom's Hardware > Forum > CPU & Components > Power Supplies, PC Cases & Case Mods > Will this PSU suffice?

Will this PSU suffice?

Forum CPU & Components : Power Supplies, PC Cases & Case Mods - Will this PSU suffice?

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Unearthly   12-01-2006 at 06:25:42 AM

Hey, I'm helping a friend upgrade his computer and trying to save as much money as possible. Computer will be:

Core 2 Duo 6300 or 6400
ECS P4M890T-M2 Mobo
2x512 DDR RAM
eVGA 7900gs
1 or 2 optical drives
1 7200 HD

The PSU he currently has is a LC-B350ATX, 350w with 16a on the 12v. Will it be enough to power this system? Future proofing not wanted, just barely enough to get this system running is preferred (tight budget).

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doolittle   12-01-2006 at 06:38:36 AM
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^? Wrong thread perhaps...

anyhow the best budget PSU at the moment seems to be the XClio 450BL 450W it is less than $50 shipped. That 350w is just painful to even think about...

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Unearthly   12-01-2006 at 06:50:49 AM
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Is 350w really not enough? Does it have to do with the # of Amps? I remember hearing that the 8800GTS required a 400w PSU, wouldn't the 7900s be a good step below that? (Thus 350w being fine)

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doolittle   12-01-2006 at 07:03:05 AM
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Well it will work fine until you start gaming, then the 16A max on that unit could be an issue.
I got about 230w from the psucalc so a good combined +12 would be at least 18A minimum.

To further confuse things I found different ratings for that model, one at 16A on a Qmax (probably his) and one at 15A on the powerup brand so now I really don't trust it...

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happy_fanboy   12-01-2006 at 07:06:25 AM
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No your computer will not post at all

Reply to happy_fanboy
doolittle   12-01-2006 at 07:12:14 AM
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Here is a 350w that will work, the SPARKLE ATX-350PA is ~$38 shipped and can do 300w/25A max on the +12v.

Reply to doolittle
outlw6669   12-04-2006 at 06:03:19 AM
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A larger PSU would be a good idea, expecialy if you plan to oc the system. You can get a decent 450-500W for less than $75 on newegg. http://www.newegg.com/Product/Prod [...] 6817153027

Reply to outlw6669
apt403   12-04-2006 at 06:13:54 AM
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Quote :

http://www.newegg.com/Product/Prod [...] 6817153027



that psu had even less amp's! amps matter more then wattage in most cases, and going down from 16 to 14-15 isnt a good idea. this psu is a couple bucks more, but its 500w's and has two +12v rails with 18a on each rail, much better.

http://www.newegg.com/Product/Prod [...] 6817256001

Reply to apt403
randomizer   12-04-2006 at 06:27:55 AM
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How much power does that 7900gs need? Thats whats going to be sucking the most power. I was think of getting myself a 7900gs for my second pc, but my psu is a 430W and has only got 18A on the single 12V rail.

Reply to randomizer
randomizer   12-04-2006 at 06:28:54 AM
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Quote :

A larger PSU would be a good idea, expecialy if you plan to oc the system. You can get a decent 450-500W for less than $75 on newegg. http://www.newegg.com/Product/Prod [...] 6817153027


Yea thats the psu line mine is, but the 430W.

EDIT: The thermaltake TR2 line is their budget line with big watts and small amps and small prices

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