GTX 780 overclock thread

[lowfat]

You can't get more voltage out of reference cards unfortunately.

[Demo]

You can't get more voltage out of reference cards unfortunately.

I heard 1.300 can be unlocked..

EDIT:

Seems like reference cards can do 1.300v but its pretty unstable in terms of the reading... I tried 1.225v and it jumps up and down.. Is that normal ?

[lowfat]

Have had good luck w/ my Classified so far. Heaven and Valley can run @ 1320MHz/3700. Can fold @ 1241MHz, which is 200MHz higher than my reference cards. The bad thing is the stock cooling is insufficient. Even @ 1241MHz it is pushing 82C. Will be put on water the second blocks are available.

[m4gg0t]

Seems like my 780 lightning hates me.

[lowfat]

I heard 1.300 can be unlocked..

EDIT:

Seems like reference cards can do 1.300v but its pretty unstable in terms of the reading... I tried 1.225v and it jumps up and down.. Is that normal ?

Looks like you are right.

Have had good luck w/ my Classified so far. Heaven and Valley can run @ 1320MHz/3700. Can fold @ 1241MHz, which is 200MHz higher than my reference cards. The bad thing is the stock cooling is insufficient. Even @ 1241MHz it is pushing 82C. Will be put on water the second blocks are available.

I lied. I was unimpressed w/ the Classified. It couldn't even fold stable @ 1150MHz even w/ 1.22V. I've since went back to my watercooled reference card and am now folding @ 1254MHz w 1.288V.

[Splave]

Some fun on water with HOF edition 780 modded for power/thermal limits and voltage read. Block is XSPC universal.









1400/1750 for firestrike :thumb:

[lowfat]

What kind of voltage were you using for 1.4GHz?

[Splave]

1.385

[Zipelgas]

Just got my GIGABYTE GTX 780 and I think im in love, this thing runs great and is hella fast ( only using a 1080p display ), would you say that crysis 3 is a good way to test my OC stability, if its good in crysis it should be good in everything else ?

At the moment it seems i cant go much higher on the stock bios, need to find a better bios to increase power target and add more voltage to it, the card is sitting @ 1.2v atm.

Here are a few tests i ran:


Firestrike 10133 on 4770K @ 4.5 + Gigabyte GTX 780 @ 1200/7400

3Dmark2011 14374 on 4770K @ 4.5 + Gigabyte GTX 780 @ 1200/7500

3DmarkVantage 45874 on 4770K @ 4.5 + Gigabyte GTX780 @ 1200/7500

[Garrett]

I tried running a couple of benches with my 2 780 cards... but it seems fps will NOT go above 200 fps... not in games, not in Unigine Heaven 4.0 (even with 1280x720 low quality settings) and not even in 3dmark03... wtf is going on.
I tried Nvidia Inspector, frame rate limiter is off... did nvidia hardlock the fps limit to 200 fps or something?
It's not the cpu... that's a 3930K @ 5GHz @ 1.40v (yes it's stable, I got a really good one)
Running Windows 8 64 bit by the way...

[lowfat]

Look at the GPU usage during games or benchmarks. If it isn't at 99% you are likely CPU bottlenecking. The lower the resolution, the more more depending a game / benchmark is on the CPU. I ditched one of my GTX780s because I was almost always CPU bottlenecking on the games I played.

[Zipelgas]

Any of you guys know where could i get a Bios for my Gigabyte GTX 780 that would allow for higher power target and more voltage ? Since even on the 100% fan setting I cannot bench with much more then 1200/7400 @ 1.2v.
One option is the techinferno bios but that only allows for 1.215v also during the benches the card shows 100.1% TDP max power usage.

[lowfat]

You don't need a new bios. You can get up to 1.325V with afterburner.

http://www.overclock.net/t/1393791/o...s-club/7880_20

Details are in first post.

[lowfat]

Currently rocking out @ 1372MHz on the core w/ 1.325V. I am able to loop Heaven at these clocks w/ no issue. Folding@home seems to be stable so far as well. Non-reference cards are overrated.

[Zipelgas]

Thank You for the link, also what the hell are you cooling the card with ? 1372 on the core is crazy good o_o

[Splave]

maybe this is the wrong space but benched some 01 on ln2




1815 passes here as well but started to get wet, will try to find better cpu.

[lowfat]

Thank You for the link, also what the hell are you cooling the card with ? 1372 on the core is crazy good o_o

EK fullcover. The VRMs are getting a tad warm but nothing it can't handle (hopefully).

[cowie]

Real nice set up splave and damn lowfat holy crap that is fantastic for a ref board don't get too greedy though

What I have been up to was playing with my 780 classy first one made funny noises on first boot then 1 week later it gave up the ghost...new one goes 1400+ with h70 cooling and 1.4v with just software.



This was the best I could do for FSX around 1430 1.41 or so.

http://www.3dmark.com/fs/944561

Now its giving me arti's with any overclock....I will check my vrm/ram heat sinks but temps are good and lots of airflow over those areas front and back.

[Zipelgas]

I have no idea whats the deal, but when i run the tomb raider benchmark it flickers and craps out a lot quicker then in any other benchmark or game.

[aussie-revhead]

My Lightning can pass at 1360 with 1.245v (factory AB limit) so I think I have a bit left in it.

[cowie]

Cheating on your titan aussie

[HelixPC]

Ok, something i noticed on my GTX 780, i get better overclocks with lower voltage, also my voltage is stuck at 1.187 no matter which bios i try, even with my own version bios which is the .37 the voltage wont go past 1.187, i have my max oc at +550 memory and +106 gpu which gives me a final clock value of 1176 with 1.167 voltage. My asic quality is 77%. I think my voltage is locked hardware wise and not bios controlled. Anyone have any input?

[i found nemo]

i'm assuming it's a temp issue. @helixpc

[aussie-revhead]

Cheating on your titan aussie

haha nah man I never hold on to any hardware for long, always something new to play with

Does anyone have a Lightning bios with unlocked power limit? My gpu is limited by this badly.

[HelixPC]

i'm assuming it's a temp issue. @helixpc

I dont think so, I've got a custom fan profile setup with afterburner, temps don't go above 75c