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[OFFICIAL] GTX 770 Owners Club - Page 881

post #8801 of 9125
Hi guys, I'm new here. I hope I'm not breaking any rule but right now I want to ask if it is possible to combine a Gigabyte 4GB GTX770 with a Gainward Phantom GTX770 4GB in SLI? Thanks!
post #8802 of 9125
Quote:
Originally Posted by zelgit View Post

Hi guys, I'm new here. I hope I'm not breaking any rule but right now I want to ask if it is possible to combine a Gigabyte 4GB GTX770 with a Gainward Phantom GTX770 4GB in SLI? Thanks!

I recall some time back a guy had problems with SLI with EVGA SC with a earlier and later model GTX 770, it was an known issue.

it should work 95% sure it will just need to run a GPU OC program to match the clocks between cards
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post #8803 of 9125
Ok @feznz thanks for your input. So you mean that if one is overclocked and the other one isn't then it will not work? Or do you mean that there is a possibility that, even though non of them are overclocked, they could have different "base" clock?
post #8804 of 9125
Quote:
Originally Posted by zelgit View Post

Ok @feznz thanks for your input. So you mean that if one is overclocked and the other one isn't then it will not work? Or do you mean that there is a possibility that, even though non of them are overclocked, they could have different "base" clock?

In nvidia with SLI you should try to match the clock speeds 1:1 between the two cards exactly, for best compatibility and stability. You can try it without it but it would most likely cause games to crash / driver resets / etc, because "the proper way to do it" is supposed to be to combine two 100% identical cards.

So if you have one that's overclocked and one that is not, you would have to either overclock the not-overclocked one to match the other, or down-clock the faster one to match the slower one.

Either way the result would be the same: matching the clocks.

A overclocking utility like MSI Afterburner / EVGA PrecisionX would be useful for this.

It's not 100% a flat requirement to match clocks, as some configurations work without doing that.. but you should, just so everything works smoothly.
post #8805 of 9125
Just picked up a reference 770 off ebay. Flashed the EVGA SC bios to it in the OP. Seems there is some issues controlling voltage now, however. Even if I set +.12V in evga precision, the voltage remains at 1.163. Anyone know if there is a different/better modded bios for a reference card around?
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post #8806 of 9125
Quote:
Originally Posted by mxthunder View Post

Just picked up a reference 770 off ebay. Flashed the EVGA SC bios to it in the OP. Seems there is some issues controlling voltage now, however. Even if I set +.12V in evga precision, the voltage remains at 1.163. Anyone know if there is a different/better modded bios for a reference card around?

I'm hesitant to write this.. because I think you probably already know this... but... uhm.. random bioses from other cards not made for that one most likely probably won't work on it.

I'm surprised it didn't brick it already.

How about just.. extracting that bios, posting it up here and asking someone to modify it for you then flashing it back?

At least that way it's guaranteed to work.
post #8807 of 9125
I do know that, I have flashed and modded many cards before, checkout the 780Ti thread... however I am just surprised that like a normal vanilla reference BIOS is not like the most common thing in this thread.
I checked the device ID, etc before I flashed it.
For some reason precision X 4.2.1 does not work on this card compared to the newest version. Which is odd, because 4.2.1 is the only version that works with the bios on my 780ti.
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post #8808 of 9125
Quote:
Originally Posted by mxthunder View Post

Just picked up a reference 770 off ebay. Flashed the EVGA SC bios to it in the OP. Seems there is some issues controlling voltage now, however. Even if I set +.12V in evga precision, the voltage remains at 1.163. Anyone know if there is a different/better modded bios for a reference card around?
Skyline created a modded BIOS for my card (GTX 770 2GB Reference - Titan Cooler). I can upload it for you if you want, I forget the exact specs, but like others said, it's not smart to use random BIOS's.
post #8809 of 9125
Quote:
Originally Posted by mxthunder View Post

I do know that, I have flashed and modded many cards before, checkout the 780Ti thread... however I am just surprised that like a normal vanilla reference BIOS is not like the most common thing in this thread.
I checked the device ID, etc before I flashed it.
For some reason precision X 4.2.1 does not work on this card compared to the newest version. Which is odd, because 4.2.1 is the only version that works with the bios on my 780ti.

I didn't intend any insult to your intelligence or anything. I was guessing by your post count and rep that you likely already knew.. dunno why I felt like mentioning it really.

I would of thought the same would apply to reference cards as well as any other card. But I have little to almost no experience with flashing different make bioses to things myself, so what do I know. I tried it once and my GTX 770 booted up POST with garbled text and artifacts everywhere and thought I bricked it. I got lucky and flashed stock back in another machine and it didn't die.
post #8810 of 9125
Interesting. These cards are a little different than I am used to I guess. Even with the stock bios flashed on, the voltage is fluctuating when I have it set to something specific in evga precision.

Thanks for the info.
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Main Rig
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Living Room PC
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CPUMotherboardGraphicsRAM
i7 4790K @ 4800 G1 Sniper 5 GTX 780Ti SLI @ 1300MHz 16GB DDR3 @ 2200 9-11-11-31 1T 
Hard DriveHard DriveOptical DriveCooling
2TB Hitatchi HDD 1TB Samsung 840 EVO samsung DVDRW DL Custom Water loop 
OSMonitorPowerCase
Win7 64 LG 27" 1080p EVGA 1000P Corsair 700D 
CPUMotherboardGraphicsRAM
i7 3770K @ 5000 Z77X-UP7 GTX770 2x4GB DDR3 7-8-7-21 1T 
Hard DriveHard DriveOptical DriveCooling
WD Velociraptor 250GB 840Evo DVD Burner Coolermaster hyper 212+ 
OSPowerCase
Win 7 x64 OCZ GameXtreme 700W  Dimastech mini v1 
CPUMotherboardGraphicsRAM
i7 2600 Asus P8Z77-V Pro GTX580 8GB DDR3 @ 1600 9-9-9 1T 
Hard DriveHard DriveOptical DriveCooling
2TB hitachi 500GB 850EVO Blue Ray Hyper 212+ 
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Win7 64` 42" Panasonic Plasma TX650 Tuniq Tower 3 
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