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Can a 240W PSU support 6200? 6600? 6600GT? +SB Audigy Value?

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April 21, 2006 10:03:27 AM

well my friend has this 240w psu and we were thinking of getin it a vga and a soundcard, i was just wondering if the 240W Psu can handle either 6200/6600/6600GT with the Sound Blaster Audigy Value soundcard.
i kinda posted a similar one in the vga section but didnt get mch replies
April 21, 2006 10:36:31 AM

it depends on what hard drives and cd drives you are going to have plugged into that, however i recon you'll get away with it if you only have like one of each, but dont expect the system to be stable. Stable power into the system always is shown by stable performance and reliability.

Martin
April 21, 2006 11:07:08 AM

I'd have thought so. Try Extreme PSU calculator. Even if it does come within spec, 240w PSUs are not going to be fantastic for stability.
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April 21, 2006 12:07:15 PM

i can speak for 6600 gt...........it won`t work on that 240watts psu........

i used 400 generic psu ...and i could not play anything on it ..it kept on restarting..when the psu was updated to 500 watts it worked perfect

i`m sure it would have worked on a good 350 watts psu.......
April 21, 2006 12:30:59 PM

Try with old psu if it works it works, if not buy new.
April 21, 2006 12:57:36 PM

P4 2.8 800FSB, 2GB PC3200 RAM, GeForce 6800GT @ 450/1200, 2x PATA hard drives, 2x Optical drives, floppy drive, Audigy 2, TV card.

That's on a 250W PSU. A pretty decent 250W PSU, but 250W nonetheless. No stability problems, BSODs, anything like that. Only time it goes down is when I hit the power button.

Synergy6
April 21, 2006 3:10:41 PM

whoa u serious, i herd the 6800GT needs at a minimum of 350W
a b ) Power supply
April 21, 2006 3:13:20 PM

Quote:
well my friend has this 240w psu and we were thinking of getin it a vga and a soundcard, i was just wondering if the 240W Psu can handle either 6200/6600/6600GT with the Sound Blaster Audigy Value soundcard.
i kinda posted a similar one in the vga section but didnt get mch replies


How many amps are there on the 12v line? There should be a sticker on the PSU.

What CPU are you using?

Both the CPU and GPU runs off the 12v line. If it's an Intel then chances are he will not be able to 6600. The hard drive & DVD-ROM runs on both 12v and 5v line.
April 21, 2006 3:16:06 PM

well hes got:
Intel Pentium 4 2.8GHz
512MB DDR2 RAM (2x256M)
1x Dell Manufactured DVD-RW (no idea what model)
April 21, 2006 3:46:19 PM

Quote:
whoa u serious, i herd the 6800GT needs at a minimum of 350W


That is a recommendation, i.e. CYA, from the card manufacturer. The card pulls around 50W under load, give or take.
April 21, 2006 6:29:35 PM

My old system (that i just replaced)

Athalon XP 3200
2 WD IDE drives
2 DVD burners
BFG 6800GT

Power? 250W...never had a problem.
a b ) Power supply
April 21, 2006 7:43:35 PM

Quote:
well hes got:
Intel Pentium 4 2.8GHz
512MB DDR2 RAM (2x256M)
1x Dell Manufactured DVD-RW (no idea what model)


I would say simply get the GeForce 6600. The 6600GT will be pushing it.

The GeForce 6800 is possible because it actually uses less power than the 6600GT. A little risky but safer than going with the 6600GT.

See below for a long winded answer.

------------------------------------------------------------------

Okay here the deal. A typical for the typcal 240w PSU, the 12v rail will have 16 amps, for a total of 192w. The 12v rail powers the CPU, GPU, and splits the load for the hard drive/DVD-ROM with the 5v rail.

A Pentium 4 3.2GHz CPU uses 144w. I'm guessing a Pentium 4 2.8GHz uses around 124w.

The 6600GT GPU uses 48w.

The general concensus for the typical hard drive and DVD burner is 15w each or a total of 30w. But I've read that the load is split with the 5v rail. How much? I don't know. Say 67% is on the 12v rail so that's another 20w.

Total estimated load on the 12v rail is 192w which is the probably the same as what is delivered by the PSU (12 volts x 16 amps = 192 watts).

The good news is that is assuming the CPU, GPU, 1 hard drive, and 1 DVD Drive are being totally maxed out at the same. It is unlikely, but technically speaking it is still possible.

The GeForce 6800 (not the GS, not the GT, but plain 'ol 6800) uses 39w of power. So that brings it down to a max of 183 watts. Still pretty high with a slim margin of safety, but actual power consumed will be less since I will be unlikely he will be burning a DVD while playing a game. Also it's not like as soon as the game the CPU and GPU are both stressed at 100% along with the hard drive. So the actual max might be something at 170w.

While these numbers look nice on your screen, it's just a bunch of numbers thrown together and real life tends to throw you curve balls.

So get the 6600 which uses 28 watts of power or get the 6800 which uses 39 watts of power. Just remember one thing: Do not overclock the video card, to do so will cause it to draw more power.
April 21, 2006 8:02:38 PM

buy a 400w psu, 240 is simply not enough
!