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4 of 4 found the following review helpful:
 Great highend power supply with a 1600 watt rating with the Jun 02, 2009
By That Was Cool.
"TDurden1937"
caveat that a high rating plug be installed to use the maximum 1600watts (I am a bit miffed that this was not mentioned in the specs for the PS as it rightfully should have, and I expected the full 1600watts to be available on a standard plug which of course it wasn't). This is for the understandable reason that the amperage pull on a household plug will exceed the usual 15amps for the standard wire and of course exceed the breaker rating for that wire gauge. There is no way around this to get this high a watt rating so it is not the fault of the power module. This is the ultimate in high power. If you don't have the bucks to have an electrician string a thicker gauge wire from a new 20amp breaker in your breaker box then this MAY not be the PS for you.
However, this PS will provide 1200 Watts on a regular plug on a regular 15 gauge house hold electrical line with the standard 15amp breaker. 1200 watts is enough for most any computer that one could configure.
I bought this one (which by the way, was easy to install, and worked flawlessly with a high end gaming machine) for my new gaming box. The wattage estimator at the AMD site suggested 1250watts for a setup that I specified as a AMD Phenom X4 9950 Black Edition, 125W Power, Socket AM2+, 8Gb of OCZ OCZ2RPR10664GK PC2-8500 DDR2 Dual Channel Reaper Series 1066MHz 4G Kit CL 5-5-5-18 Memory, TWO Sapphire Radeon HD4870 X2 2GB DDR5 Dual DVI / TVO PCI-Express Graphics Card (notice that this is the two GPU card which would make a total of four GPU's), 4 Western Digital WD3200KSRTL Caviar 320 GB SATA 3.5-Inch Hard Drive (I like RAID 0-1), 2 Sony NEC Optiarc CD/DVD writer, and of course a 3.5-inch floppy. All this was mounted and connected to a ASUS M3A78-T AM2+/AM2 AMD 790GX HDMI ATX AMD Motherboard. I put all this (but with only 4Gb RAM, 1 DVD R/Writer and one hard drive) in a Thermaltake Spedo Black Full-T Case w/230mm Fan box with two of those 230mm/8" fans, plus 3 5" fans with two more possible attached, one to the bottom of the case and one to the back of the mother board side for a total of 2 8" and 5 5" fans. This would have been well within the capability of the Ultra X3 1600-watt even at the lower 1200watt level using a standard three prong household plug.
If I had included all the hard drives I planned plus another cd/dvd R/Writer AND another Sapphire Radeon HD4870 X2 2GB DDR5 Dual DVI / TVO PCI-Express Graphics Card, and the two other OCZ memory modules which the ASUS MoBo was capable of handling I thing I would have got the electrician to install that electrical upgrade for the 20amp breaker and increased gauge electrical wire.
All in all the components I installed were rather reasonable at around $1,500 total. And it was . . . oh mama . . . so fast.
And no problem with the PS and extremely quiet. I also might note that there were connecting cords aplenty. More that any reasonable person could expect to use.It fit flawlessly in the Thermaltake tower.
I feel bad for the other reviewer who got the bad PS, but as he said it was an open box, possibly used and I would never to this. It is a role of the dice I have already taken and have got burnt badly. Always get new stuff.
I might note that the Thermal lake box was a fantastic box, unusually large which made installation easier, and it actually had directions that made sense and it seemed that someone with a good grasp of English wrote it.
10 of 14 found the following review helpful:
 All Flash, no substance Jan 29, 2009
By SH A. A. THANI
I have bought 3 of those power supplies, first one was slightly used or as you can say "like new", I bought this powersupply becuase of the reviews i saw on youtube, and becuase it has many connectors and also because the advertisement on it stated that it can feed three big big graphic cards,
when i recived my first psu, it i realised that it can only support two gtx 280s , i had to get those adapters inorder to run the third one, and that what i did, the psu ran great for 2 hours and then it died. i was very dissapointed and i thought that the amazon seller who sold me the psu cheated me and sold me a semi-dead psu, i live in Qatar, middle east so i couldnt really be bothered by sending it back and all cuz ill be paying for shipment whats the psu worth. so what i did is bought another one and this time i bought two new ones, the other one is for my cousin, he seemed intrested with all the feutures that the psu provides , i managed to run three gtx 280 this time, everything ran smoothly, when i started to play games with it, i start to hear the power supply noise, 10 minutes later the power supply noise went higher and suddenly my pc shuts down ..... oh not again .. i tried changing the graphic driver, underclocking my cpu and changing my ram settings to defult but i still get the shutdown.. 3 days later my cousin told me that his old 1000 thermaltake powersupply can handle his pc better than the ultra 1600-watt and that the Ultra 1600 watt shuts down after about 1 and a half hour of gaming.
Very bad powersupply indeed, it's not even 1600 watt, u need to get an electrician and setup a new socket with an additonal cost ofcoure inorder to run 1600 wat, im now running 2x GTX 280 on the Psu, its even getting too hot and noisy.
I'm writing this review becuase im dissapointed from ultra products and beucase wont be fooled by this power supply, i'm telling you my expirence with three of 1600-WATT ULTRA psus, buy yourself somthing decent from silverstone or thermaltake
Simply the best Mar 18, 2012
By joshua fetzer
after reading a real review on this power supply there testing showing this power supply to regulate better then the top of the line of power and cooling in fact any power supply they tested, so I thought I give this one a try.
WOW it live up to its standards, I have software that moniters and records all the rails of voltage in my computer, I have to say this power supply did regulate power better and under load didn't budge. All lines With in 1% or some not moving at all. Where my 950watt pcpower and cooling went way out of voltage regulation over 5% under load in my sli rig . I was also able to over clock 50% more with this power supply. Need I say any more, over a year now and still top notch. I keep looking for a better model power supply for my next build and I can't , may have to buy another 3x 1600.
No one will use the 1600 watts and you need a special 20 amp plug for the full 1600 watts, with the normal plug you get about 1300 watts, this doesn't matter, it's the best power supply you can buy, this power supply can go where no normal 1200 power supplie can and do it stable
I been looking and reading all the reviews I can to see if they make a power supply even more stable then this one and have not found one yet. There arnt even any 1200 watts that can do 1100w with in 1%. There more like 3% . It seems like there not even trying and not even coming close :(
Don't understand why in this day and age why they can't make a power supply that has no voltage drop or fluctuation at all
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