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~~The GTX 670 Overclocking Master-Guide~~ - Page 297

post #2961 of 3357
Quote:
Originally Posted by Tatakai All View Post

With all the new cards being released I finally decided to OC my 680. The highest I got was 1215/1900. MBF is 1215 Boost 1059 Keplar boost 156. My heaven 4.0 score 1080p extreme is 1039 with 41.9 fps. Either I have a bad OC or my cpu is the problem. I'm thinking it's my cpu since everything checks out and and is stable with my OC.

EDIT: Did some minor tweeks. After running Heaven a few more time I discovered I wasn't stable at the above OC and had to turn the core down a little.
Wow! +800 memory! I thought +700 for me was a giant leap. Have you ran evga oc scanner with artifact checking on and max memory? I use that program for checking my stable memory overclock and I cant go past +750 but I'm stable with 0 artifacts for anything +720 and below. I'd like to see you run that test for a good 20minutes and see if it detects any artifacts?
post #2962 of 3357
Hi all,

Been a while since i was on here, and after buying me 2nd Gigabyte GTX670 OC i was trying to find max oc on both cards.

Something i found really weird is the following:

With or without Sync on i did a start test with my old oc settings from when having 1 card.
GPU clock offset +90. Mem offset +450 on both cards. Overvolt to 1.150 V

Now when i run Heaven i find the following: GPU core clock from the 1st clock is 1163 between 50% and 98% load around 51°C
And the 2nd GPU core clock is 1267 between 50% and 97% load and temps around 54°C

Bios: both on F5 80.04.31.00.58 (P2004-2005)

As said the setting are the same while in synced or manually set. How can the be such a big difference while the temp is still so low.

Score in Heaven: 1698
fps: 67.4
Preset Custom
Quality : Ultra
Tess: Extreme

Driver 314.07
Win 7 64 bit

GPU-Z saying both cards are @GPU clock 1070, Boost 1149. So exactly the same.

Also when i take the GPU1 offset higher, the gap (ofc) is closing between them.

Any ideas on how to get them working @ same clock speeds ?

Just found in GPUZ that the Power consumption on 1 of the cards is weird. Showing 257,1 % TDP on stock clocks. Guess this is the reason why clocks will not go up further on this card...
Edited by Reefer - 11/10/13 at 4:31pm
post #2963 of 3357
Quote:
Originally Posted by Cakewalk_S View Post

Wow! +800 memory! I thought +700 for me was a giant leap. Have you ran evga oc scanner with artifact checking on and max memory? I use that program for checking my stable memory overclock and I cant go past +750 but I'm stable with 0 artifacts for anything +720 and below. I'd like to see you run that test for a good 20minutes and see if it detects any artifacts?

OC scanner is not a great util for detecting memory errors. I had mine set around 7400 and it wasn't detecting errors, after running the Metro: Last light test and reducing it I found there were no artifacts at about 7000, I then ran Crysis 3 and had to reduce my memory a little more before the arc you get when you are aiming a grenade would behave properly. It's now set to 6978 and I've not seen any artifacts anywhere since.

I'd be extra cautious with memory as it doesn't just degrade like a CPU or GPU, it will just go.
post #2964 of 3357
Quote:
Originally Posted by Deders View Post

OC scanner is not a great util for detecting memory errors. I had mine set around 7400 and it wasn't detecting errors, after running the Metro: Last light test and reducing it I found there were no artifacts at about 7000, I then ran Crysis 3 and had to reduce my memory a little more before the arc you get when you are aiming a grenade would behave properly. It's now set to 6978 and I've not seen any artifacts anywhere since.

I'd be extra cautious with memory as it doesn't just degrade like a CPU or GPU, it will just go.

Ive had an opposite experience of yours. I find all my games won't artifact at all however, when I test oc scanner it will detect even just 1 artifact which is enough for me to reduce the speed a tad. My games never crash but I can get oc scanner to show artifacts. Typically my games crash due to core clock rather than memory.
post #2965 of 3357
Quote:
Originally Posted by Cakewalk_S View Post

Wow! +800 memory! I thought +700 for me was a giant leap. Have you ran evga oc scanner with artifact checking on and max memory? I use that program for checking my stable memory overclock and I cant go past +750 but I'm stable with 0 artifacts for anything +720 and below. I'd like to see you run that test for a good 20minutes and see if it detects any artifacts?

I'll give it a try since I've only been doing Heaven and BF4 for stability testing.
Quote:
Originally Posted by Deders View Post

OC scanner is not a great util for detecting memory errors. I had mine set around 7400 and it wasn't detecting errors, after running the Metro: Last light test and reducing it I found there were no artifacts at about 7000, I then ran Crysis 3 and had to reduce my memory a little more before the arc you get when you are aiming a grenade would behave properly. It's now set to 6978 and I've not seen any artifacts anywhere since.

I'd be extra cautious with memory as it doesn't just degrade like a CPU or GPU, it will just go.

I'll definitely be more cautious thanks for the heads up cause I didn't know this. Also I'll give C3 a few runs for stability testing too.
Quote:
Originally Posted by Sysop82 View Post

Cool desktop background. What is that?

It's Rainmeter, an easy tool to customize your desktop. http://rainmeter.net/cms/
Warning: Spoiler! (Click to show)
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post #2966 of 3357
I have been having some issues overclocking my GFX past a boost clock of 1090
My specs
Gigabyte Windforce X3 OC Gtx 670 2gb
AMD Phenom II X6 1055t
16gb DDR3 1600mhz Ram
Biostar Ta880gu3+

1090 Boost
1202 Max Boost with kepler
1852Mhz Memory
111% power target with 1.175 Voltage slider...
heaven 2013-11-12 20-09-13-40.jpg 117k .jpg file

+31.png 75k .png file

http://gpuz.techpowerup.com/13/11/12/cxf.png
post #2967 of 3357
Quote:
Originally Posted by Darthusith View Post

I have been having some issues overclocking my GFX past a boost clock of 1090
My specs
1090 Boost
1202 Max Boost with kepler

http://gpuz.techpowerup.com/13/11/12/cxf.png

you obviously make it to 1202mhz which is a pretty average overclock.
and 7400mhz on the memory is pretty kickass
Edited by pc-illiterate - 11/12/13 at 7:47pm
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post #2968 of 3357
but yet my scores are drastically lower then what other users are getting... i know my cpu is being the bottleneck in most games, if not all, but according to 3dmark 11, 3dmark vantage, and 3d mark firestrike... a great deal of other users are getting higher overclocks by a great deal... even the guide says to overclock till boost gets to 1100, but i can't without finding instability in heaven 4.0... is it because of the small power target that i get?
post #2969 of 3357
all gb wf3 670s have a max power target of 111-112%. i have yet to see a newer wf3 reach 100% power usage. mine will not go over 94% and that in itself is a rarity. i usually stay under 90%( iirc ).
you still hit a max overclock of 1202mhz core. as stated 7400mhz on the memory is very good. generally you can overclock higher and pass the 3dmark benches. as far as your heaven 4 score, i have no idea. i had sli before the bench released so i have no clue how you should average.
as an example using my wf3, my absolute max is 1228mhz and i will lose all stabilty any higher. my memory only reaches 6900mhz compared to yours. my dc2 on the other hand reaches 1300mhz easily and still only gets 6900mhz on memory. i run 1202 mhz for sli because thats more than enough as it is.
whats your x6 clocked at? it shouldnt matter at all because no phenom 2 will bottleneck a 600 series card. sli isnt hurt much at all with thubans FROM WHAT I READ.

have you tried going higher than 1202 to see if its a hole in the clocks? nvidia had to have changed something in the manufacturing process because from what i read before, a lot of 680s were/are not getting super high clocks anymore.

not any info here you dont already know but im bored and trying to help...
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post #2970 of 3357
Hi all
I just read trough the guide and understand most of it but I have one question. Why set the clock offset to reach 1100mhz at the beginning what's the significance of this?
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