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780 ti SLI and 4770k = which psu size? - Page 4

post #31 of 59
Quote:
Originally Posted by hammong View Post

*YOU'RE GONNA BE FINE*



Even if you overvolt your 780 and OC your CPU, there will be precious little opportunities to run them both at 100% load for more than a few minutes at a time unless you're benchmarking, folding, or running prime95. 700 watts is more than enough.



Greg

 


No, he's talking about 780 Ti's. Ask anyone: overvolting these cards significantly increases their power consumption. Put two in SLI and your gaming power consumption goes through the roof.
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post #32 of 59
Quote:
Originally Posted by TwoCables View Post

Quote:
Originally Posted by hammong View Post

*YOU'RE GONNA BE FINE*



Even if you overvolt your 780 and OC your CPU, there will be precious little opportunities to run them both at 100% load for more than a few minutes at a time unless you're benchmarking, folding, or running prime95. 700 watts is more than enough.



Greg

 


No, he's talking about 780 Ti's. Ask anyone: overvolting these cards significantly increases their power consumption. Put two in SLI and your gaming power consumption goes through the roof.

Am I mistaken cables, or shouldn't that v700 safely shutdown when and *IF* overloaded?

Should he scrap it and get a new one?......or give it a shot?
post #33 of 59
If you're planning on running 2 high end gpu's, I'd just go around 1000W PSU, so you have good headroom for overclocking etc.
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post #34 of 59
Quote:
Originally Posted by Marc79 View Post

If you're planning on running 2 high end gpu's, I'd just go around 1000W PSU, so you have good headroom for overclocking etc.

But OP is running the cards at stock and only OCed the CPU
post #35 of 59
Quote:
Originally Posted by mam72 View Post

But OP is running the cards at stock and only OCed the CPU

Ummmm.....780 ti is probably one of the best O.C'ing cards of all time, it will beat a 690 when OC'ed

The damn card boosts all by itself as if to say "really? thats all you got?"

I don't think anyone ever just leaves them at stock, despite they're best intentions thumb.gif
post #36 of 59
Quote:
Originally Posted by JoHnYBLaZe View Post


Am I mistaken cables, or shouldn't that v700 safely shutdown when and *IF* overloaded?

Should he scrap it and get a new one?......or give it a shot?

 

lol yeah the V700 is a very nice PSU. It's 100% safe.

 

Quote:
Originally Posted by JoHnYBLaZe View Post


Ummmm.....780 ti is probably one of the best O.C'ing cards of all time, it will beat a 690 when OC'ed

The damn card boosts all by itself as if to say "really? thats all you got?"

I don't think anyone ever just leaves them at stock, despite they're best intentions thumb.gif

 

I'd leave it at stock. I don't like overclocking video cards. I never have. I hate that I can't just walk away while testing the stability.

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post #37 of 59
Quote:
Originally Posted by TwoCables View Post

lol yeah the V700 is a very nice PSU. It's 100% safe.


I'd leave it at stock. I don't like overclocking video cards. I never have. I hate that I can't just walk away while testing the stability.

Thing is, the 780ti boosts and OC's itself even at stock

The gains are significant, take thief or tombraider for example, after you overclock the cards you can run supersampling in these games at 60+ at 1440p

I walked away from my cards while testing them plenty of times, just set a custom fan profile and temp target

Both of my cards do 1200mhz at stock voltage, its a crime I tell you....
post #38 of 59
Glad to hear this!

Been trying to find out if my AX850 would be enough for when I grab my second 780Ti. thumb.gif

Just to be certain though, with +75mV on both cards and +0.010V offset on CPU, running on a custom loop should be safe with an 850 PSU?
post #39 of 59
I have the ax860i, 4770k at 4.5ghz and 780 sli at stock setting, after about 6 months the psu failed and I got a replacement from corsair, but I not sure whether if was just faulty or got overloaded and failed etc.
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post #40 of 59
Quote:
Originally Posted by Bourbon Mimic View Post

Glad to hear this!

Been trying to find out if my AX850 would be enough for when I grab my second 780Ti. thumb.gif

Just to be certain though, with +75mV on both cards and +0.010V offset on CPU, running on a custom loop should be safe with an 850 PSU?

 

+0.010V offset is meaningless due to a few things...  What core voltage are you seeing in Windows under full load? What software are you using to see that core voltage?

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i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveHard DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
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Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
KeyboardPowerCaseMouse
Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
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It's a computer!
(19 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveHard DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
Optical DriveCoolingOSMonitor
Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
KeyboardPowerCaseMouse
Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
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