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1000 + watt power supply for 2 7990's. which to go? - Page 5

post #41 of 47
Quote:
Originally Posted by thisjustanother View Post

i wouldnt have expected this post to have exploded in such a manner here.

Welcome to the Internet! redface.gif

Quote:
Originally Posted by thisjustanother View Post

ii do have a bit of an update though. thermaltake is having a sale of 45% off select psu's and the Toughpower XT Platinum 1275W Snow Edition from them can be had for 170$.
http://www.thermaltakeusa.com/store/Product.aspx?C=1016&ID=2330#Tab0

what are your thoughts on this psu and at that price point.

Johnny Guru Has a review on the Toughpower XT Platinum 1275W. They gave it a decent rating. And the price point is certainly good.

According to the photos in the review, the 65 amp 12 volt rail (12v2) is the one powering the PCI-E connectors, so that should be enough for two 7990s if you stay within the default frequencies of AMD's overdrive settings. You never told me if you wanted to overclock the 7990s, so I'll assume you aren't.

Anybody else know of a better power supply at this price?
post #42 of 47
Quote:
Originally Posted by thisjustanother View Post

i wouldnt have expected this post to have exploded in such a manner here.

i do have a bit of an update though. thermaltake is having a sale of 45% off select psu's and the Toughpower XT Platinum 1275W Snow Edition from them can be had for 170$.
http://www.thermaltakeusa.com/store/Product.aspx?C=1016&ID=2330#Tab0

what are your thoughts on this psu and at that price point.
http://www.overclock.net/t/1436159/thermaltake-power-supplies-information-thread

1275 watts does not have imprissive voltage regulation

3.09% on the 12v rail

Ripple peaks at 42mv on the 12v rail during 100% load

Not bad but i have seen better

On the other hand 170-175$ is dirt cheap

At the end of the day you save 50$ Vs the EVGA SuperNova G2 1300 watts but you get 3 times as high ripple and voltage regulation
Edited by shilka - 11/16/13 at 6:29am
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Seravee
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CPUMotherboardGraphicsRAM
Intel Core I7 6850K Gigabyte X99 Ultra Gaming Gigabyte GTX 970 G1 Gaming Kingston HyperX DDR4 Savage 3000 MHz 
Hard DriveHard DriveHard DriveHard Drive
Samsung 840 Evo WD Green WD30EZRX  WD Green WD40EZRX  WD Green WD60EZRX  
Hard DriveOptical DriveCoolingCooling
WD Red WD80EFZX 8TB  LG CH12NS30 5x Noctua NF-A14 FLX Noctua NH-D15 
OSMonitorKeyboardPower
Windows 7 64 Bit Asus PG279Q Corsair Gaming Strafe RGB EVGA SuperNova G2 750 watt 
CaseMouseMouse PadAudio
Phanteks Enthoo Luxe Roccat Kone XTD Laser Roccat Sense Metor Sennheiser HD 598 
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Onkyo TX NR646  Harman Kardon HKTS 60 CableMod E series PSU cable set CableMod LED Strips 
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post #43 of 47
I'll agree with shilka on this one. New Egg has the EVGA SuperNOVA 1300 for $210. If you can spend the extra $40, the EVGA unit is a better investment if you ask me.
post #44 of 47
Quote:
Originally Posted by Escovado View Post

I'll agree with shilka on this one. New Egg has the EVGA SuperNOVA 1300 for $210. If you can spend the extra $40, the EVGA unit is a better investment if you ask me.

1.19% voltage regulation and 15mv ripple on the 12v rail

Highest ripple in testing was 22.5mv

Hard to find anything thats better in the same price area
Seravee
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CPUMotherboardGraphicsRAM
Intel Core I7 6850K Gigabyte X99 Ultra Gaming Gigabyte GTX 970 G1 Gaming Kingston HyperX DDR4 Savage 3000 MHz 
Hard DriveHard DriveHard DriveHard Drive
Samsung 840 Evo WD Green WD30EZRX  WD Green WD40EZRX  WD Green WD60EZRX  
Hard DriveOptical DriveCoolingCooling
WD Red WD80EFZX 8TB  LG CH12NS30 5x Noctua NF-A14 FLX Noctua NH-D15 
OSMonitorKeyboardPower
Windows 7 64 Bit Asus PG279Q Corsair Gaming Strafe RGB EVGA SuperNova G2 750 watt 
CaseMouseMouse PadAudio
Phanteks Enthoo Luxe Roccat Kone XTD Laser Roccat Sense Metor Sennheiser HD 598 
AudioAudioOtherOther
Onkyo TX NR646  Harman Kardon HKTS 60 CableMod E series PSU cable set CableMod LED Strips 
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Seravee
(24 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core I7 6850K Gigabyte X99 Ultra Gaming Gigabyte GTX 970 G1 Gaming Kingston HyperX DDR4 Savage 3000 MHz 
Hard DriveHard DriveHard DriveHard Drive
Samsung 840 Evo WD Green WD30EZRX  WD Green WD40EZRX  WD Green WD60EZRX  
Hard DriveOptical DriveCoolingCooling
WD Red WD80EFZX 8TB  LG CH12NS30 5x Noctua NF-A14 FLX Noctua NH-D15 
OSMonitorKeyboardPower
Windows 7 64 Bit Asus PG279Q Corsair Gaming Strafe RGB EVGA SuperNova G2 750 watt 
CaseMouseMouse PadAudio
Phanteks Enthoo Luxe Roccat Kone XTD Laser Roccat Sense Metor Sennheiser HD 598 
AudioAudioOtherOther
Onkyo TX NR646  Harman Kardon HKTS 60 CableMod E series PSU cable set CableMod LED Strips 
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post #45 of 47
Quote:
Originally Posted by shilka View Post

Brand has nothing to do with how they are

In this case its the OEM that made them that good a PSU

EVGA and Antec does not make PSU´s themeselfs

And both EVGA and Antec have crappy PSU´s i would never touch

Sorry I meant to say OEM.
post #46 of 47
Quote:
Originally Posted by Ashuiegi View Post

you are totally wrong , psu have often their best efficiency between 50-80% load , this is where you want to be if you want quiet and cool operation

and it all comes down to how OFTEN you are reaching those 50 - 80% load. if you are building a machine that is folding 24/7 then sure. but the fact is MOST people rarely EVER reach the power draw of prime+furmark on their system. even gaming loads are usually alot less power draw... 1500w is overkill no matter how you look at it.
post #47 of 47
it all comes down to oc and extra , for me it s 4x200+ mm fans , 12x120mm , 1x140mm, nzxt sentry and hue , one mpc35x , a sound card that need a pcie , all these things quickly add up . i have a 800 watts psu that used to run this config without the CF , it ran hot all the time and at startup the big fans were not starting like they should , once i got my ax1200 it was ok .
i spent twice as much of course but i will not need to change psu until this one dies , if i had got this ax 1200 the first time , i would have spend less in the end , that was my point , always overshoot a little bit if you can.
the saving are more here then in the power , which is really cheap for me , i was pointing efficiency because what is not turned into usefull power for the pc is heating the psu.
Edited by Ashuiegi - 11/17/13 at 6:39am
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