which power supply should i get?

[blaze15301]

i just used the thermaltake calculator to see if i was gonna be able to use my power supply. corsair 750 xt. im a bit confused as to what the calculator is saying. with the aging at 30 im pushing around 970 watts but at like 10% im only using 763.

here is what im goign to be running hopefully soon.

4 sata hardrives all 7200 rpm.

phenom2 x6 1090t. oced to 4.0 (hopefully)

4 ddr3 sticks 1600.
1 5830
1 5870 or a 5850 haven't decided yet.
a fan controller
cd drive.
card reader
3 yate loon high performance
swifttech 655-b
2 80mm

i have this psu right now.
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139006


im thinking maybe this one

http://www.newegg.com/Product/Product.aspx?Item=N82E16817139014
but im not sure is that 100 amps is divided between each 12v rails. or if its 100 amp each.

im was also thinking of this one.

http://www.newegg.com/Product/Product.aspx?Item=N82E16817139007


let me hear your opnion, because i suck at picking out power supplies. i want something that will last and not kill me. if i could use the 750 for maybe another month id be very happy.

[Mach]

but im not sure is that 100 amps is divided between each 12v rails. or if its 100 amp each.


It's a very nice PSU that gives you alot of grow room if you need it. Unless something has changed, its a single 12v rail @ max 100 amps. Take a look at Jonnyguru for their review that highlights the pros and cons. (http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=189)


I wanted to take a moment to comment on that single massive 100.4A 12V rail...One one hand, I know why the single 12V rail is there and how it came to be in the marketplace. But on the other hand, it makes me a mite nervous. 100.4A is an awful lot of current. You can melt the insulation on some seriously thick gauge wires with that, never mind the 18-16 gauge wires most power supplies this size use to connect to your computer parts... There is a risk factor here when you start getting 12V rails this huge... It's still a reasonably minor risk on a well built unit like this, but a risk is present nonetheless. My rambling point is this - multiple 12V rails aren't the devil, folks, especially on units that can pull more power out of the wall than your toaster.

[blaze15301]

It's a very nice PSU that gives you alot of grow room if you need it. Unless something has changed, its a single 12v rail @ max 100 amps. Take a look at Jonnyguru for their review that highlights the pros and cons. (http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=189)

thank you but what i was wondering is if i could get away with using my 750 for a bit till i get the money for the ps.

[Trace]

With 30% cap aging, I am coming up exactly with 750 watts.

http://extreme.outervision.com/PSUEngine

[blaze15301]

With 30% cap aging, I am coming up exactly with 750 watts.

http://extreme.outervision.com/PSUEngine

so ill be ok then for a short time.

[FuzzyPlushroom]

I'd say you'll be fine, full stop, as long as you don't get too enthusiastic about overclocking the video cards as well, and so forth - upgrading in the future, to give yourself some extra headroom, is never a bad plan, but right now you ought to be all set with the 750W, as it's a good-quality unit to begin with.

[slaveofconvention]

It's worth considering that a lot of quality PSU manufacturers under-rate PSUs in order to get Efficiency certifications - we've seen PSUs here which will happily go 20-30% above rated specs without a problem. It isn't unusual at all to get a 900W PSU badged as an 800 or lower so they can put the energy efficiency rating award on the box - PSUs get inefficient as they approach peak so a sneaky (and good for us) way to get around that problem is to lower the rating WITHOUT downgrading the PSU

[blaze15301]

It's worth considering that a lot of quality PSU manufacturers under-rate PSUs in order to get Efficiency certifications - we've seen PSUs here which will happily go 20-30% above rated specs without a problem. It isn't unusual at all to get a 900W PSU badged as an 800 or lower so they can put the energy efficiency rating award on the box - PSUs get inefficient as they approach peak so a sneaky (and good for us) way to get around that problem is to lower the rating WITHOUT downgrading the PSU

thanks slave thats what i was hoping to hear.