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post #11 of 19
Quote:
Originally Posted by marc0053 View Post

Many 2x Gtx titan and 2x gtx 780 classified owners are reporting up to 1300Watts from the wall with lga 2011 (including me) when increasing voltage to 1.3V (titans) and 1.4V (gtx 780). Since you are planning on using classified gtx 780s you should be considering this when buying your psu. The modded bios people use on the gpus to remove throttling offers up to 450W per gpu.

1300W from the wall, with two GPUs? That's insane, unless you have a PSU with less than %50 efficiency.
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Folder Rodriguez
(21 items)
 
   
CPUMotherboardGraphicsRAM
i7 3770k MAXIMUS V FORMULA EVGA 680 FTW+ 4GB  16GB (2x8GB) G.SKILL Trident X 2400mHz CL10 1.65V 
Hard DriveHard DriveOptical DriveCooling
Corsair Force 3 120GB SSD Seagate SV35.5 2TB 64MB cache 7200 RPM HDD LG blu-ray R/W Heatkiller CU 3.0 Nickel/Black 115X 
CoolingCoolingCoolingOS
Swiftech MCP355 w/ Petra's Mod Top Undecided radiator config 12mm OD push fittings, and E22 12mm acrylic tubing Slackware 64-bit 
OSMonitorKeyboardPower
Arch Linux 64-bit Asus 24" 1920x1080 LED Rosewill 9000 w/ MX Blues Seasonic X650 
CaseMouseMouse PadOther
Scratch build test bench Logitech G600 black Xtrac Ripper XXL 2x Corsair AF 140mm quiet edition case fans 
Other
Promilatech PK-1 
AudioAudioAudioOther
**Possibly used** HifiMan HE-500 headphones **USED** Schiit Lyr headphone amp Jolida Glass FX Tube DAC EK Nickel CSQ 680+ Waterblock 
OtherOtherOther
2x Aplhacool NexXxos UT60 360mm full copper rad... 6x Scythe Gentle Typhoon 1450 RPM fans 10 meters of 12mm OD nickel plated copper pipe,... 
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post #12 of 19
Thread Starter 
Quote:
Originally Posted by BYOGamingPC View Post

Your best option is to get the i7-4770K http://amzn.to/16bWjqw with SLI GTX 780 Classifieds http://amzn.to/16hIgkl Unless you're doing ridiculous overclocking that requires water cooling you will be fine with the XFX PRO 850W Black Edition http://amzn.to/16BBQ2L The 850 will allow you to SLI a couple 780's and allow for some moderate overclocks on both the CPU and GPU. A 1300W PSU is enough for 4-way SLI 780's....

Mhm this is probably the best option, so now i'm deciding to take the second 780 instead the watercooling.. but if in the next summer I will decide to put all (mobo,cpu, and the sli) under watercooling isn't better take a 1000W or why not a 1300W?
post #13 of 19
Quote:
Originally Posted by YaLu View Post

Mhm this is probably the best option, so now i'm deciding to take the second 780 instead the watercooling.. but if in the next summer I will decide to put all (mobo,cpu, and the sli) under watercooling isn't better take a 1000W or why not a 1300W?

If you got too high a PSU you will use less of it

Which give you lower efficiency on what you use

Lower efficiency means more power wasted which is turned into heat and you want as little heat in your PSU as you can

Lower efficiency also means you are paying for power thats going to waste and thats money out the window

So get a PSU that fit your needs
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Seravee
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post #14 of 19
Quote:
Originally Posted by YaLu View Post

Mhm this is probably the best option, so now i'm deciding to take the second 780 instead the watercooling.. but if in the next summer I will decide to put all (mobo,cpu, and the sli) under watercooling isn't better take a 1000W or why not a 1300W?

No, you would be wasting efficiency and money to go overkill with a PSU. It seems as though Shilka has already pointed this out.
post #15 of 19
Thread Starter 
Quote:
Originally Posted by shilka View Post

If you got too high a PSU you will use less of it

Which give you lower efficiency on what you use

Lower efficiency means more power wasted which is turned into heat and you want as little heat in your PSU as you can

Lower efficiency also means you are paying for power thats going to waste and thats money out the window

So get a PSU that fit your needs

Quote:
Originally Posted by BYOGamingPC View Post

No, you would be wasting efficiency and money to go overkill with a PSU. It seems as though Shilka has already pointed this out.

We're talking too much about PSUs and it isn't my primary problem.
I will probably take a 4770K (or why not the 4830K and X79 MB), and a 780 2-way sli, I could go for watercooling 780s reference... is a good idea?
post #16 of 19
Quote:
Originally Posted by YaLu View Post


We're talking too much about PSUs and it isn't my primary problem.
I will probably take a 4770K (or why not the 4830K and X79 MB), and a 780 2-way sli, I could go for watercooling 780s reference... is a good idea?

Not a bad idea at all but if you're going to water cool then you may as well get the GTX 780 Hydrocopper http://amzn.to/153MxNb which is already fitted with a water block.
post #17 of 19
Thread Starter 
Quote:
Originally Posted by BYOGamingPC View Post

Not a bad idea at all but if you're going to water cool then you may as well get the GTX 780 Hydrocopper http://amzn.to/153MxNb which is already fitted with a water block.

Excluding 780 Classified/Lightning/Galaxy, all other 780s has the same pcb? Because I'm looking the Asus DCU II and the EK made a specific waterblock for that 780 custom.
All this to decide what 780 model for watercooling...
post #18 of 19
Quote:
Originally Posted by YaLu View Post

Excluding 780 Classified/Lightning/Galaxy, all other 780s has the same pcb? Because I'm looking the Asus DCU II and the EK made a specific waterblock for that 780 custom.
All this to decide what 780 model for watercooling...

The Asus CU II is 100% custom

it does not share the normal 780 PCB
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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 
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post #19 of 19
Thread Starter 
Quote:
Originally Posted by shilka View Post

The Asus CU II is 100% custom

it does not share the normal 780 PCB

I've probably made ​​my choice then, It will rise more than one reference in watercooling... I hope so.
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