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~~The GTX 670 Overclocking Master-Guide~~ - Page 64

post #631 of 3357
Quote:
Originally Posted by K2mil View Post

EPIC

Definitely deserves the epic fail label. Man that was messed up.
post #632 of 3357
Quote:
Originally Posted by amorello View Post

got an EVGA GTX 670 FTW 2gb
and system is :
i5-3570k
Hyper 212 evo
Z77 Extreme4
OCZ ZX 850W
120gb mushkin chronos
2tb barracuda 7200rpm
16gb patriot G2 Division2
Any of you guys have an optimal setting for this card, or a similar build ?
because my cpu clock offset cant go above +47
and my mem clock offset is +460
power target 100%
Heaven Score : 1256
but I want to go higher, and I cant for some reason, some other FTW ones have gone hıgher than +150 gpu clock, why cant I ?
open to any suggestion or settings thank you :=)

You can't just look at the offset value ... you have to consider the Kepler Boost, which varies from card to card. See the first link in my sig for a further explanation.

Bottom-line though these cards, perhaps more than any I've seen, involve a major lottery situation. We've seen people's max OC's vary from just under 1200, to just under 1400 (assuming 1.175V). A pretty dang wide range of values for a max OC value.
    
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post #633 of 3357
Thank you for this FANTASTIC guide - Especially the section about frequency oscillation was good!

My scores, after using your guide (Yes, on a custom "VOLT-UNLOCK" BIOS)





The Overclock before the BIOS FLASH:

CORE: 1350
MEMORY: 3602

So gained abit by flashing smile.gif

Not too shabby for a Reference GTX 670 (Which I bought since its so small with a waterblock on).
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post #634 of 3357
First of all, thank you for this amazing guide!

CPU: 2600K on a Asus P8P67 Mobo (4.5GHz and 8GB RAM at 1600MHz)
Card Model: EVGA GTX 670 FTW
Boost Clock: 1084
Max Boost: 1177 (Kepler Boost of 93)
Memory Clock: 6208
Power Target: 145% (Slider) - Max 121% (Real)
Voltage: 1.175 (Slider)

Well, I just received my 670 FTW and I was trying to overclock it using this guide. But power and voltage are reacting strangely, different from most of descriptions I have been seeing around:

The max power of 121% TDP never changes, both at factory or overclocking. It reacts the same also even when changing the voltage slider. It always varies between 110% and 120%, maxing out at 121%. Temps are good, never going over 63C.

I started the overclock process with voltage maxed out at 1.175 (constant flat line). I was frustated when I got max heaven points (around 1080) at only +86 core (+0 memory). It would crash over +100, pass at +96 but with lower Heaven points. I tried running 3DMark11 and was also very disapointed with around P8600.

I noticed that at +96 or +86, the core frequency was not a flat line. No big dips as in your example, but not a flat line as well, only very fine oscilation (between 1240 and 1263).

Just as an experience, I tried running again 3DMark11, with all the same settings except for the voltage which I left at default (0.98). For my surprise, I got aroung P9500. I noticed that it doesn't matter what I put in the voltage slider, it always go to 1.175 when needed. Any higher value in the voltage slider only drops the points, being at default my optimal results.

With default voltage slider and 145% (or 125%) power slider, I was able to go up to +126 core, with max boost of 1302. It never is a flat line though, always varying a little bit between 1280 and 1302. The only place where it becomes a flat line at 1302 is the last test of 3DMark11 and/or in the last scenes of Heaven. This is getting me P9980 in 3DMark11 and 1240 points in Heaven.

I wanted to reach P10000, but I can't add any memory to it. It fails in Heaven and 3DMark11 with +40 memory (+80 total). Most of the people gets very high memory overclocks with this card, I wonder if I got a bad one.

Could you please help me figure out what's up with the voltage, non-flat core frequency and no overclock room for memory? Thank you.
post #635 of 3357
Quote:
Originally Posted by edukas View Post

First of all, thank you for this amazing guide!
CPU: 2600K on a Asus P8P67 Mobo (4.5GHz and 8GB RAM at 1600MHz)
Card Model: EVGA GTX 670 FTW
Boost Clock: 1084
Max Boost: 1177 (Kepler Boost of 93)
Memory Clock: 6208
Power Target: 145% (Slider) - Max 121% (Real)
Voltage: 1.175 (Slider)
Well, I just received my 670 FTW and I was trying to overclock it using this guide. But power and voltage are reacting strangely, different from most of descriptions I have been seeing around:
The max power of 121% TDP never changes, both at factory or overclocking. It reacts the same also even when changing the voltage slider. It always varies between 110% and 120%, maxing out at 121%. Temps are good, never going over 63C.
I started the overclock process with voltage maxed out at 1.175 (constant flat line). I was frustated when I got max heaven points (around 1080) at only +86 core (+0 memory). It would crash over +100, pass at +96 but with lower Heaven points. I tried running 3DMark11 and was also very disapointed with around P8600.
I noticed that at +96 or +86, the core frequency was not a flat line. No big dips as in your example, but not a flat line as well, only very fine oscilation (between 1240 and 1263).
Just as an experience, I tried running again 3DMark11, with all the same settings except for the voltage which I left at default (0.98). For my surprise, I got aroung P9500. I noticed that it doesn't matter what I put in the voltage slider, it always go to 1.175 when needed. Any higher value in the voltage slider only drops the points, being at default my optimal results.
With default voltage slider and 145% (or 125%) power slider, I was able to go up to +126 core, with max boost of 1302. It never is a flat line though, always varying a little bit between 1280 and 1302. The only place where it becomes a flat line at 1302 is the last test of 3DMark11 and/or in the last scenes of Heaven. This is getting me P9980 in 3DMark11 and 1240 points in Heaven.
I wanted to reach P10000, but I can't add any memory to it. It fails in Heaven and 3DMark11 with +40 memory (+80 total). Most of the people gets very high memory overclocks with this card, I wonder if I got a bad one.
Could you please help me figure out what's up with the voltage, non-flat core frequency and no overclock room for memory? Thank you.
Try to add +400 on the memory. Low amounts tend to fail. And my card use to do the same thing with the reference bios, but after I flashed it stopped now its at a constant 1330 in 3dmark which let me break 11k biggrin.gif
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post #636 of 3357
Thank you for the quick reply, I'll try putting higher memory numbers.

Now, about this bios, is it an official update from evga, or a modded one? Do you have a link for it? Is it for evga 670 ftw?

Thanks a lot!
post #637 of 3357
Quote:
Originally Posted by edukas View Post

Thank you for the quick reply, I'll try putting higher memory numbers.
Now, about this bios, is it an official update from evga, or a modded one? Do you have a link for it? Is it for evga 670 ftw?
Thanks a lot!
It is a modded one, check my thread.
http://www.overclock.net/t/1289489/gtx-670-unlocked-voltage-bios
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post #638 of 3357
Oh, ok, you have a whole thread about it, lol. Thank you!

Is it the one in the first page? I see that there are many pages so I just make sure I use the most updated one.

Thanks a lot!
post #639 of 3357
Quote:
Originally Posted by edukas View Post

Oh, ok, you have a whole thread about it, lol. Thank you!
Is it the one in the first page? I see that there are many pages so I just make sure I use the most updated one.
Thanks a lot!
No problem make sure you read the warning though smile.gif
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post #640 of 3357
So I got mine 670 msi gtx pe and I'm really disappointed ATM running your in deep guide I found my gpU core at default is jumping between 1176 and 1189 mhz in heaven when I attemp to max out voltage and power target in afterburner the card overheats to 67-69 C . mhz are jumping and the score is not getting better any ideas ?? Ps thenvidia panel v sync disabled and preferred maximume performance enabled... mad.gif

Edit: I figured out my card she doesn't like core volt at max she like is +40 for a highest boost oc of 1269 MHz with power limit of 105%

Very important factor in all this was custom fan profile yeah it gets loud but it's summer in humid Chicago any way here are my scores @ 1920 x 1200

Heaven with settings of master guide OP
Consistent clock of 1269 MHz with 47.2 FPS and score of 1189 temp didn't go over 67 C

3Dmark 11 P score 9554 Graphics 10166 physics 8200 combined 7938 TEMP under 65 C


I found slight lower clock but at lover core volt of +30 I like it better but there is a mystery behind it
The max boot clock is only 5Mhz lover

Consistent 1254 MHz In heaven with score 47.1 fps and score of 1187 Temp under 66 C

Now 3dmark acts bad under this frequency P Score is 9201 temps are fine but thats make me wonder why in heaven The difference is minimal and 3 d mark the gap is bigger

Any way I played Crysis 2 multiplayer maxed out ultra dx11 hr textures

Wow it played Sweet let me tell you the clock was consistent at 1254 and I played good 4 games on full servers without any issue what so ever the only thing I'm thinking of is fan was getting loud but I might increase the power limit maybe to 107% so far the biggest draw was 104 %

Any way I know that's not the killer overclock but I'm happy with it and I'm planing to keep this card until my lucky number 770 GTX will be out sometime in near future. I just wanna say I love support of every member of this forum it's magic .

Thank you for guide thumb.gif
Edited by K2mil - 8/7/12 at 9:12pm
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