lowest wattage, best quality, with four 6-pin pci-e?

[VirtualLarry]

right now my quad-gpu cruncher (which crashed months ago), has a Xion PowerReal 800W. No PFC. Unsure of efficiency (no 80plus). But it does have four 6 or 6+2 pci-e plugs on it.

Previously, I had used an Antec EarthWatts 650W with a pair of pci-e splitters.

Neither power supply was ideal.

Can some make a recommendation? Preferably no Rosewill.

Edit: this seasonic looks good.
http://www.newegg.com/Product/Product.aspx?Item=N82E16817151106

 

[TemjinGold]

http://www.newegg.com/Product/Produc...82E16817182263

 

[VirtualLarry]

Seriously? A Rosewill over a Seasonic? There had better be some good reasoning behind that choice.

Edit: That may have been a bit strongly worded. I'm not trying to pick a fight, I'm just curious about the reasoning behind that recommendation, as I've experienced that Rosewill PSUs are generally mediocre.

I did read recently that the Capstone PSUs are made by SuperFlower. I was pretty happy with my SuperFlower PSUs back in my Athon XP days.

 

[BonzaiDuck]

Seriously? A Rosewill over a Seasonic? There had better be some good reasoning behind that choice.

In long-past prior decades, my choice of PSUs bordered on thoughtlessness, and of course I paid a price, eventually.

I started looking more closely at comparison reviews around 2005.

I was settling on Seasonic PSUs in 2007. It has become too easy and comfortable to simply stick with that choice, but not much has changed.

I think even PCP&C was using rebadged Seasonics for their Silencer line before they were bought out by OCZ (? I think that's right . . )

That 650W job looks about right without considering your equipment and load requirements, although I'd try to get "Gold" for any special project. But the "Silver," "Bronze" and "Gold" ratings are all about slight differences in efficiency or wasted power.

I've been disappointed by OCZ and Antec. So far, Seasonic has never been any letdown whatsoever.

For the wattage, and as I remember, there was (and hopefully still is) a "PSU" or "power" calculator online. You just punch in the data on your equipment, over-clocks and other factors, and it will tell you what you need. Somehow, 650W seems a little short for four graphics cards, if that's what you have under the hood.

 

[Markfw]

After having 10 PSU's die in the last year (all the crunching) I am not risking my hardware anymore. The below is the Minimum I would go.

http://www.newegg.com/Product/Produc...Power-Supplies

I think $105 after rebate right now.

 

[VirtualLarry]

I've been disappointed by OCZ and Antec. So far, Seasonic has never been any letdown whatsoever.

I'm curious why you would equate OCZ and Antec together in the same sentence like that.

For the wattage, and as I remember, there was (and hopefully still is) a "PSU" or "power" calculator online. You just punch in the data on your equipment, over-clocks and other factors, and it will tell you what you need. Somehow, 650W seems a little short for four graphics cards, if that's what you have under the hood.

Well, they were running just fine on an Antec 650W, and with the Xion PowerReal 800W (non-PFC, probably efficiency in the 70s range), it draws 400W at the wall.

Each GPU (9600GSO 96SP) takes less than 100W full load.

 

[Zap]

a Xion PowerReal 800W. No PFC.

No active PFC? Unlikely that it puts out more than around 500W of real power.

I did read recently that the Capstone PSUs are made by SuperFlower.

Yes, Rosewill Capstone are made by Super Flower, and have a 5 year warranty.

 

[Markfw]

So you don't like my Corsair suggestion ?? I thinks its a great price right now.

 

[infoiltrator]

Corsair builds some bery good power supplies, and offer good service.
For $150 Seasonic speks to me
http://www.newegg.com/Product/Produc...Power-Supplies

For $100-110 Rosewill Capstone are solid.

 

[mindwreck]

just get a seasonic and be done with it. you have a quad gpu cruncher and your going to skim on powersupply. the powersupply is the backbone of the whole machine.

oem of a m12D.
http://www.newegg.com/Product/Produc...Power-Supplies

or get the corsair that mark recommend. thats a good and cheaper unit.

 

[TemjinGold]

Seriously? A Rosewill over a Seasonic? There had better be some good reasoning behind that choice.

Edit: That may have been a bit strongly worded. I'm not trying to pick a fight, I'm just curious about the reasoning behind that recommendation, as I've experienced that Rosewill PSUs are generally mediocre.

I did read recently that the Capstone PSUs are made by SuperFlower. I was pretty happy with my SuperFlower PSUs back in my Athon XP days.

I mostly listed it because you said no Rosewill and I feel the Capstone gets a bad rap from people just because it's Rosewill when it is in fact a solid choice as shown in reviews.

 

[lehtv]

Rosewill Fortress 650W $88 AP

4x 6+2-pin PCIe connectors
Platinum efficiency
Continuous 650W @ 50C
Not modular
7 year warranty
Manufactured by Superflower

 

[infoiltrator]

See jonnyguru.com for Super Flower and Rosewill Capstone reviews (and Seasonic, Corsair)
http://www.jonnyguru.com/modules.php?name=NDReviews&op=Review_Cat&recatnum=13
jonnyguru/forums has great discussions/recommendations concerning these power supplies
http://www.jonnyguru.com/forums/

 

[Zap]

Rosewill Fortress 650W $88 AP

4x 6+2-pin PCIe connectors
Platinum efficiency
Continuous 650W @ 50C
Not modular
7 year warranty
Manufactured by Superflower

According to this review of the 750W Fortress the OEM is ATNG. The Rosewill Lightning and Capstone are Super Flower. Though it is more efficient, I'm not loving the Fortress units as much as the Capstones because of build quality issues pointed out in the review, plus not quite nailing the efficiency.

 

[lehtv]

Oh, hm. I just assumed it was SF like the Capstone. I would pick the Capstone 650-M over the Fortress 650W, then.