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SLI Gtx 780tis + 4790k OC - Page 6

post #51 of 56
You can go RAID if you like just keep in mind you will rarely see more performance than what a single drive offers. Your choice.
 
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post #52 of 56
Thread Starter 
Super informative, much appreciated. I have had 2 240GB ssd's from last year black friday sale. I was just going to raid them... well for kicks. Now I can sell one, or use it for mini secondary storage
post #53 of 56
If you already have, I guess either option works. Lol
 
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post #54 of 56
Thread Starter 
Nope, both still in packaging smile.gif
post #55 of 56
Quote:
Originally Posted by TwoCables View Post

First, higher wattage PSUs aren't better than their lower wattage siblings and cousins.

 
Having said that, I have to address this a couple of different ways because I would normally do a back-and-forth question and answer session before I get to the power consumption, but I'm short on time because I'm going to sleep in a few minutes.

Ok, so first, I will approach this as though you're overclocking the CPU to about 4.5 GHz with the 780 Ti's overclocked using the stock BIOS. This would result in practically the stock power consumption from the cards and a CPU power consumption of about 125-150W.

So, with that, see here:

http://www.guru3d.com/articles_pages/gtx_780_ti_sli_geforce_review,4.html

With two GTX 780 Ti's under full load in their system, their PSU pulled 617W from the wall outlet. Their CPU was idling, so I have to add up to 150W for the CPU under full load. This makes the PSU pulling 767W from the wall outlet. This means that if the PSU were 90% efficient while pulling 767W from the wall, then the computer is pulling 690W from the PSU. It doesn't end there because the gaming power consumption would be lower, never exceeding about 650-675W. This means that any good quality-made 750-850W PSU is plenty.

However, if you were to use a custom BIOS on the 780 Ti's in order to overclock and overvolt them beyond what's possible with the stock BIOS, then yeah, that would increase the power consumption by quite a bit. Unfortunately, I'm a bit clueless when it comes to power consumption for this because I just don't know enough to know. I don't want to leave you hanging though, so my estimate for a very very high overclock using a custom BIOS would probably be a recommendation of getting a good quality-made 1200W PSU.

Notice here that I keep saying, "a good quality-made PSU". You can get a low-quality 1000W+ PSU pretty easily.

@TwoCables, would those same figures apply to Classified versions of the 780 ti, assuming you continued to use the stock BIOS using EVGA Precision (which I think let's me go to 110% power)?

Basically I have a 1000w gold PSU, 2 780ti Classy's, a 4.4ghz 4770k, and no intention of using a custom BIOS. Am I good to "max" out the stock bios?
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Resurgent
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post #56 of 56
Quote:
Originally Posted by Krulani View Post
 
Quote:
Originally Posted by TwoCables View Post

First, higher wattage PSUs aren't better than their lower wattage siblings and cousins.

 
Having said that, I have to address this a couple of different ways because I would normally do a back-and-forth question and answer session before I get to the power consumption, but I'm short on time because I'm going to sleep in a few minutes.

Ok, so first, I will approach this as though you're overclocking the CPU to about 4.5 GHz with the 780 Ti's overclocked using the stock BIOS. This would result in practically the stock power consumption from the cards and a CPU power consumption of about 125-150W.

So, with that, see here:

http://www.guru3d.com/articles_pages/gtx_780_ti_sli_geforce_review,4.html

With two GTX 780 Ti's under full load in their system, their PSU pulled 617W from the wall outlet. Their CPU was idling, so I have to add up to 150W for the CPU under full load. This makes the PSU pulling 767W from the wall outlet. This means that if the PSU were 90% efficient while pulling 767W from the wall, then the computer is pulling 690W from the PSU. It doesn't end there because the gaming power consumption would be lower, never exceeding about 650-675W. This means that any good quality-made 750-850W PSU is plenty.

However, if you were to use a custom BIOS on the 780 Ti's in order to overclock and overvolt them beyond what's possible with the stock BIOS, then yeah, that would increase the power consumption by quite a bit. Unfortunately, I'm a bit clueless when it comes to power consumption for this because I just don't know enough to know. I don't want to leave you hanging though, so my estimate for a very very high overclock using a custom BIOS would probably be a recommendation of getting a good quality-made 1200W PSU.

Notice here that I keep saying, "a good quality-made PSU". You can get a low-quality 1000W+ PSU pretty easily.

@TwoCables, would those same figures apply to Classified versions of the 780 ti, assuming you continued to use the stock BIOS using EVGA Precision (which I think let's me go to 110% power)?

Basically I have a 1000w gold PSU, 2 780ti Classy's, a 4.4ghz 4770k, and no intention of using a custom BIOS. Am I good to "max" out the stock bios?

 

I don't know the answer, so I recommend asking in a new thread.

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It's a computer!
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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) 
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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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