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Which PSU if calculator says 478w?

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August 27, 2007 2:30:10 PM

So is the PSU Calculator fairly accurate? I put in my specs and it came out to 478w. I'm trying to balance power needs and budget...especially since I'm splurging on the GPU.

Here's what I input:

Single Processor
Regular Desktop
Intel e6750
left at 85% TDP
no overclock
2 DDR2 RAM
8800GTS 320
2 SATA hdds
2 optical
1 PCI card (considering the effectiveness of a PCI Slot Fan for under the video)
2 USB devices
1 front bay card reader
2 92 fans
2 120 fans
100% peak
30% capacitor aging

all that gave me 478w.

That being the case, could I go with the Corsair 520 or the Antec Neo 550? Or should I play it a little safer? I'd love to go with a Corsair 620 but is the extra $30 or so (after MIR) worth it? How about the FSP 600 or FSP 700? Antec NeoPower 650?

More about : psu calculator 478w

August 27, 2007 2:55:49 PM

You took into account aging but I still like to err on the side of too much power and I think your best option would be either the Corsair 620 or the FSP 600 both of which have good headroom to account for any future upgrades and PSU aging.
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August 27, 2007 3:01:27 PM

Thanks for the opinions (and links). I like to have some "wiggle room" but don't want to unnecessarily pay for overkill.
August 27, 2007 3:29:40 PM

If your gonna add a second gpu then go for one that is around 600w with alot of amps on the 12v rail(s). If your gonna just use what you posted above get a good quality 500w psu w/ preferably 1 12v rail.
August 27, 2007 3:35:53 PM

No, no plans to go with a 2nd GPU. No more than the 2 hard drives. At most I might add a 2nd optical drive at some point and/or a front bay card reader. I think my choices are primarily:

Corsair 520
Antec Neo 550
FSP 600
August 27, 2007 4:25:51 PM

I would not be worried about one poster's issues with the Corsair PSUs.

1000 good reviews outweigh one bad.

The 520w Corsair is fine, do not worry about the calculator.
If you checkout the reviews for the corsair 450w, all the reviewers note that it can power any Single GPU system and has the power but not the connectors to handle some dual GPU systems.

The calculators are always high.

The Corsair 520w is plenty of power and it's good quality is better than
a higher wattage lower grade psu
a b ) Power supply
August 27, 2007 4:39:08 PM

zenmaster said:
I would not be worried about one poster's issues with the Corsair PSUs.

In which case, get a Corsair HX620, I have two of them and they're great. :sol: 

1000 good reviews outweigh one bad. said:
1000 good reviews outweigh one bad.

Now 1001 :lol: 
a b ) Power supply
August 28, 2007 1:46:06 PM

texasnightowl said:
So is the PSU Calculator fairly accurate? I put in my specs and it came out to 478w. I'm trying to balance power needs and budget...especially since I'm splurging on the GPU.

Here's what I input:

Single Processor
Regular Desktop
Intel e6750
left at 85% TDP
no overclock
2 DDR2 RAM
8800GTS 320
2 SATA hdds
2 optical
1 PCI card (considering the effectiveness of a PCI Slot Fan for under the video)
2 USB devices
1 front bay card reader
2 92 fans
2 120 fans
100% peak
30% capacitor aging

all that gave me 478w.

That being the case, could I go with the Corsair 520 or the Antec Neo 550? Or should I play it a little safer? I'd love to go with a Corsair 620 but is the extra $30 or so (after MIR) worth it? How about the FSP 600 or FSP 700? Antec NeoPower 650?




http://www.newegg.com/Product/Product.aspx?Item=N82E168...

http://www.jonnyguru.com/review_details.php?id=30


The reccomendation for your video card is 26A / 12v rail, why would you even be considering any P/S that doesn't deliver that?

Watts means squat today, what matters is, IS the available required amperage there, people are experiencing failures today because they're underpowering their systems, when the needed requirements were listed all along but they chose a P/S rated below their listed requirements.

Pull your brand video card up on Newegg, look under specifications, for system requirements, if it says 26A 12v rail, you better get a P/S that delivers what it requires, and if you don't, remember this post when trouble comes knocking.
August 28, 2007 3:51:52 PM

Thanks...I went with the Corsair 520HX which delivers a combined 40A on 12v. $105 on zipzoomfly and seems to be highly recommended.
!