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Power Supply

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6 replies to this topic

#1 nforce


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Posted 14 December 2006 - 01:08 AM

I have a medium-end sytem and I'm upgrading the video card. I have a pretty generic psu and was wondering if I should get a new one.
Sempron 2800+ (usually madly overclocked)
1.5gigs pc3200 ram
6800oc video card (also oc-ed)
2 dvd\cd rom drives
1 hdd
4 led fans
350w psu (+12v 15a)

I ran a psu calculator test and it said I only needed 275w. But I'm not sure if I trust this. I also know that even if my psu isn't really 'sufficient', it still might run, but will run much better with a bigger psu.

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#2 Wildabeast


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Posted 14 December 2006 - 04:02 AM

If it was me, I'd try to get a bigger PSU, is the 275w with the old card, or new? If it's with the new you make it, if it's the old you might not. But a good name PSU with power to spare is the way I would go.
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#3 nlinecomputers


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Posted 14 December 2006 - 08:53 AM

I always give myself about a 30% pad when I use those calculators just to make sure. Power Supplies always weaken over time so you want to have room for the eventual degradation of the unit.
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#4 usasma


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Posted 14 December 2006 - 09:01 AM

"Some is good, more is better" :thumbsup:

Seriously, with a PSU it's good to "pad" your requirements. This lets you add additional stuff later on without overloading the power supply.

My favorite PSU is the PC Cooling & Power. A tad expensive, but very, very reliable.
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#5 Andrew


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Posted 14 December 2006 - 02:48 PM

"Some is good, more is better" :thumbsup:

Indeed, I bought myself a nifty 650 watt PSU a while ago and I noticed that the computer runs a little bit smoother now with the extra headroom (I had a 350 watt before) especially when I'm using both optical drives and both hard drives simultaneously.

#6 nforce

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Posted 14 December 2006 - 11:13 PM

Thanks for the replies. The psu test calc i did was for my new video card, overclocked, all usb ports in, ect (usually don't have everything overloaded like that.)

If it was up to me, I would have gotten a better psu to begin with, but it was free, new from a friend (he bought wrong connection to mobo). He gave it to me and it was fine for my system.

And as right now with being kinda tight on money, i was wondering if this *should* be ok for me without cost to my system performance.

I ran the test again with the settings i have right now(older vid card - 9600xt) and no overclocks and stuff and it said it recommended 220w psu.

In a few years (like lotsa people), i'll be upgrading everything to dx10 and all that stuff. Just want something to let me play new games ok till then.

#7 Archer-of-Death


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Posted 15 December 2006 - 09:45 PM

I always overkill with my power supply. I have a 680w Apevia Beast. with a 4600+, nforce590 am2 pci-e mobo, 7950GT, 250gig hard drive, and 2 gigs of ram.
I didnt bother putting details.

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