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[Official] NVIDIA GTX 780 Owner's Club - Page 1767

post #17661 of 24915
Ok, thanks a lot for clarification wink.gif
post #17662 of 24915
Quote:
Originally Posted by OccamRazor View Post

http://www.overclock.net/t/1393791/official-nvidia-gtx-780-owners-club/0_100
From one of my articles:

"An 8+2 phase system may not necessarily provide any more current than a 6+1 phase if the amount of amperage capacity through out the VRM system is the same; however, the 8+2 phase system would still do so with more efficiency, stability, and with less heat output.
However, as a practical consideration, many VRMs with more phases can supply more power. I mean, assuming you want to output 64A, it's usually cheaper to use sixteen 8A transistors than four 32A transistors. So more phases makes it cheaper to make the VRM more powerful (usually). So a VRM with fewer phases will often (but NOT ALWAYS) be less powerful, since making it more powerful is more expensive."


But cooling has always a word to say in the matter! thumb.gif


Cheers

Ed

(Team skyn3t)

I was mistaken about the FLIR image of the Gigabyte gtx 780 ti. It actually has 6 phases rather than 8. It would be interesting to see a FLIR comparison between a 6 and 8 phase board design.
post #17663 of 24915
Love my New System biggrin.gif
post #17664 of 24915
Just bought a GTX 780 ACX from NCIX.

Newegg has lost my business forever.

I might have gotten a 290 if the miners didn't screw the gaming community. Whatever, I'm pretty sure I'll be happy with it.
Edited by crazysoccerman - 3/12/14 at 5:58pm
post #17665 of 24915
Guys need a quick consultation please... (sorry for russian english smile.gif )
I were lucky to catch a good deal on a second GTX 780 ZOTAC AMP to make it work in SLI with my reference 780 from MSI.
SO first I was really surprised that instead of getting a huge fps increase, I get low gpu usage as max 70% @(crysis 3 1980 ultra 8xmsa 60-120fps)
-After reading things on web I understand that to use full potential of 780sli is to run them in 1440p...?
-Which would be the best 1440p monitor to flip my ASUS 120hz vg278h. (I do afraid to feel 60hz again)
1)ASUS PB278Q; 2)DELL U2713HM 3) *Korean monitors 120hz???
- Should I overclock reference MSI 780 to zotac AMP settings?
- And what would be the best way to replace them. Is it better to put reference card on lower second pcie slot where air is bit cooler and AMP on pcie 1 slot? Physx on AMP card?

Appreciate any comments. Sorry for noob questions smile.gif
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post #17666 of 24915
Quote:
Originally Posted by SkyNetSTI View Post

Guys need a quick consultation please... (sorry for russian english smile.gif )
I were lucky to catch a good deal on a second GTX 780 ZOTAC AMP to make it work in SLI with my reference 780 from MSI.
SO first I was really surprised that instead of getting a huge fps increase, I get low gpu usage as max 70% @(crysis 3 1980 ultra 8xmsa 60-120fps)
-After reading things on web I understand that to use full potential of 780sli is to run them in 1440p...?
-Which would be the best 1440p monitor to flip my ASUS 120hz vg278h. (I do afraid to feel 60hz again)
1)ASUS PB278Q; 2)DELL U2713HM 3) *Korean monitors 120hz???
- Should I overclock reference MSI 780 to zotac AMP settings?
- And what would be the best way to replace them. Is it better to put reference card on lower second pcie slot where air is bit cooler and AMP on pcie 1 slot? Physx on AMP card?

Appreciate any comments. Sorry for noob questions smile.gif

The Asus PB278Q and Dell U2713HM are both great monitors....I prefer the Dell for their outstanding warranty and customer service. If you don't mind the ugly shiny plastic bezels, crappy stands, possibility of dead pixels, and no warranty (square trade warranty is an option) the Korean monitors like QNIX and X-Star are great because you can most likely overclock to 120Hz.

Are you using these cards on air? If so, definitely overclock them, but beware that SLI 780s can still be pushed pretty hard at 1440p. You might see some thermal throttling if you don't have great airflow. Definitely stay at or below 1.212V.

Not sure what you're asking in your third question, but I would say put your reference card on bottom because it sucks air in and blows it out the back of your case. Then put the AMP card in the top PCI-E slot. This also depends a bit on what motherboard you have and the spacing between slots.
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post #17667 of 24915
Quote:
Originally Posted by SkyNetSTI View Post

Guys need a quick consultation please... (sorry for russian english smile.gif )
I were lucky to catch a good deal on a second GTX 780 ZOTAC AMP to make it work in SLI with my reference 780 from MSI.
SO first I was really surprised that instead of getting a huge fps increase, I get low gpu usage as max 70% @(crysis 3 1980 ultra 8xmsa 60-120fps)
-After reading things on web I understand that to use full potential of 780sli is to run them in 1440p...?
-Which would be the best 1440p monitor to flip my ASUS 120hz vg278h. (I do afraid to feel 60hz again)
1)ASUS PB278Q; 2)DELL U2713HM 3) *Korean monitors 120hz???
- Should I overclock reference MSI 780 to zotac AMP settings?
- And what would be the best way to replace them. Is it better to put reference card on lower second pcie slot where air is bit cooler and AMP on pcie 1 slot? Physx on AMP card?

Appreciate any comments. Sorry for noob questions smile.gif

Before going extreme and buy another monitor how about thinking other options?
I have run Titans SLI with a single VG278H 120Hz (now i run 3x) and got 99% GPU on both cards! You can have a lot of reasons to have low gpu usage!
Did you reinstall drivers after installing your new 780? Clean install? Have you tried to clean the system of nvidia drivers with DDU to make sure there is no driver problem?
And how about trying another PSU? Your chieftec is more a 750W (old CWT design) with a combined 62A and only 20A on the PCIe rails... rolleyes.gif
I wouldnt be surprised if it was the direct cause of your problem! wink.gif
Chieftec has a bad reputation and IIRC never had a winner in my book, They use a variety of OEMs from Delta for some cheap and unimpressive models, to Sirfa/High Power and CWT for most of the remaining lineup.


Cheers

Ed

(Team skyn3t)
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post #17668 of 24915
Quote:
Originally Posted by crazysoccerman View Post

I made sure to buy new so that the warranty will protect me if any overvolted VRMs give up the ghost in the next three years devil.gif

eVGA guest RMA features the same level of coverage as their standard warranty, but for three years from date of card's manufacture rather than date of purchase.

Doesn't matter much since second-hand GTX 780s are still overpriced (a new one is justifies $500, but a used one shouldn't be more than $400).
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post #17669 of 24915
Quote:
Originally Posted by friend'scatdied View Post

eVGA guest RMA features the same level of coverage as their standard warranty, but for three years from date of card's manufacture rather than date of purchase.

Doesn't matter much since second-hand GTX 780s are still overpriced (a new one is justifies $500, but a used one shouldn't be more than $400).


So its often better to buy a used EVGA from some Joe on the internet rather than their b-stock that has a one year warranty. I don't get the sense in that. Maybe EVGA doesn't trust that they fixed the issues with the RMA'd cards? But that does explain why the used cards were the same if not higher in price on ebay than from EVGA.
post #17670 of 24915
Hello folks, my first time here, I would like know what is the best bios for Asus GTX780-3GD5 reference: http://www.asus.com/Graphics_Cards/GTX7803GD5/ Stok bios 80.10.36.00.02 (З2083-0020)?
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