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6750m extreme overclocking guide
- Thread starter Necriss
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yup thats normal. Apple modified the device ID name in their bootcamp drivers.
Display Driver version. 11.6 is the package version as a whole.
Sorry for the late reply, kinda gave up on this thread after my previous failings. It doesn't really matter what voltage or the memory clock is, I haven't test other games but crysis 2 will crash then cause the whole system to freeze with a overclock of over 770Mhz.
I seem getting stuck trying to OC my vga even up to 750/950@0.955v. It is not stable playing Crysis more than 1 hour, so I revert it back to 750/900@0.955 and it is all good. The overvolt setting I can reach is 800/1000@1.02v. More than that, it keeps getting crash when I play Bad Company 2.
Is there something wrong with my vga? Is it alright if I keep getting crashed when I try to OC (so that makes me hard reset my MBP)? Does it damage my vga and my system and hard disk?
For you, Necriss, did u reapply thermal paste or not? If so, what did you use?
I am using 11.6 mob driver from ati btw if that really matters.
Is there something wrong with my vga? Is it alright if I keep getting crashed when I try to OC (so that makes me hard reset my MBP)? Does it damage my vga and my system and hard disk?
For you, Necriss, did u reapply thermal paste or not? If so, what did you use?
I am using 11.6 mob driver from ati btw if that really matters.
No, I'm using stock thermal paste. Is your MBP plugged in and power management profile set to performance? 795/1000 @ 0.955 is stable for me on battery anyway so not really quite sure what your problem is, high temps due to poor thermal paste? or maybe just a bad chip.
Overvolting is fine as long as its not running excessively hot. My MBP hasn't had 1 crash since experimenting with different clocks and voltages.
Stable as in every game runs perfectly for hours, no hangs, crashes whatsoever. The purpose of an overclock is to get better performance not constant hiccups lol
Hard lock crashes generally mean the GPU isn't getting enough voltage, because these chips perform up to 880ish core. If your power management profile is correct it simply may mean your chip requires more power than others.
Try running at 850/1000 @ 1.05v, it should be stable. If not reduce the core by 10mhz increments till it is.
Hard lock crashes generally mean the GPU isn't getting enough voltage, because these chips perform up to 880ish core. If your power management profile is correct it simply may mean your chip requires more power than others.
Try running at 850/1000 @ 1.05v, it should be stable. If not reduce the core by 10mhz increments till it is.
I'm having an issue returning to stock clocks with ATT. I've managed to overclock/undervolt just fine, but when returning, all I get is a black screen. I've waited for a bit but I don't see anything come up.
I set the Core Speed slider to 100 and Mem speed slider to 150 (the default when I bring up ATT) and saved that as the profile for stock. Should I just be waiting longer for something to happen or did I just set it wrong?
I set the Core Speed slider to 100 and Mem speed slider to 150 (the default when I bring up ATT) and saved that as the profile for stock. Should I just be waiting longer for something to happen or did I just set it wrong?
You're supposed to use a hotkey for stock settings, not a profile. Its labeled as "Set BIOS Default Clocks" under Overclocking.
Patch your Crysis 2, retail settings are different. Playing on High which is equivalent to Gamer I think.
11.6 Mobility, the version you tried to install was probably for desktop cards
http://www2.ati.com/DriVeRs/mobile/11-6_mobility_vista_win7_64_dd_ccc_ocl.exe
Don't understand what you're asking for but yes underclock saves more power and lowers temps. Dig a few pages back, ninja2000 did some underclocking+volting tests.
Sorry my english is bad.. I mean, what is the best setting (increase performance withouth crash) mem/gpu/volt...??
If i use 750/950 0,955 its safe??? How about temperature??? Hotter than default one???
This looks brilliant ! 
I have 2 questions though :
1. There are 3 levels of peformance modes, right ? A 2D mode, a 3D mode and something inbetween, right ? In AtiTrayTools i can only create the 2D and 3D mode however...is that normal ?
2. While i set my 3D mode to 0.955V (730/920), what about the sweetspot for the 2D mode ? The standard clocks are 150/300 with 0.900 V, now i set it to 300/450 @ 755V...will it run warmer due to the higher clocks ? If so, i would simply go with the standard 2D Clocks, but with a lower Wattage -- any idea what the sweetspot for the standard 2D Clocks is ?
I have 2 questions though :
1. There are 3 levels of peformance modes, right ? A 2D mode, a 3D mode and something inbetween, right ? In AtiTrayTools i can only create the 2D and 3D mode however...is that normal ?
2. While i set my 3D mode to 0.955V (730/920), what about the sweetspot for the 2D mode ? The standard clocks are 150/300 with 0.900 V, now i set it to 300/450 @ 755V...will it run warmer due to the higher clocks ? If so, i would simply go with the standard 2D Clocks, but with a lower Wattage -- any idea what the sweetspot for the standard 2D Clocks is ?
no, unless you told them you overclocked.
please read the first page, all the answers are there.
This looks brilliant !
I have 2 questions though :
1. There are 3 levels of peformance modes, right ? A 2D mode, a 3D mode and something inbetween, right ? In AtiTrayTools i can only create the 2D and 3D mode however...is that normal ?
2. While i set my 3D mode to 0.955V (730/920), what about the sweetspot for the 2D mode ? The standard clocks are 150/300 with 0.900 V, now i set it to 300/450 @ 755V...will it run warmer due to the higher clocks ? If so, i would simply go with the standard 2D Clocks, but with a lower Wattage -- any idea what the sweetspot for the standard 2D Clocks is ?
1. Only 2 modes, 2d/3d.
2. You'd have to test the sweetspot for 2d clocks, when im on battery and playing videos I use the default speed undervolt. It is possible to get something like 300/450 @ 755 which saves power and runs youtube/vlc fine I think ninja2000 posted a few undervolt tests a few pages back.
Thank you for your quick answers.
I'm sorry, but it's like this:
Gamer=Low
Advanced=Medium
Harcore=High
So does that mean you played on low settings when getting 40+ in FPS?
And also, when I installed the Catalyst Control Center I started to get only around 10 FPS. You don't happen to know why?
Thanks again.
Crysis 2 video settings are re-labelled after v1.0, I suggest patching to the latest version which has a lot of performance fixes.
High = Gamer
Very High = Advanced
Enthusiast = Hardcore
Those benchmarks were on High, which is Gamer on retail.
Try uninstalling CCC, never found it worth keeping. All you need are the actual card drivers.
Never heard of "coupling frequencies" ?
It's not so impossible that an accurate setup matching a correct frequency value both for gpu and ram could improve a smooth work inside the bus ending with low operating temperatures.
If frequecies match correctly it's possible for the gpu to not waste cycle clocks to operate ram, thus....it's not so impossible that a setup could work better (and cooler) than another one.
Just my two cents.
Currently ultra-stable at 760/950@9,4V !! with temp between 55C°@52%rpm and 83-86C°@78-91%rpm...with Philasseon's secret 1920x1080 all maxed out including 4xAA running at an average of 40-45 fps (really playable).
I did a deep scrub of the old drivers cause I don't like messed things, when you install bootcamp it will install a lot of garbage along the video driver itself that's however nothing more than the official
supported 11.2 that I've installed and reinstalled again till I got stuck of messing things around and, erased every rest of 11.2 I did a clean install of latest 11.6 which seems to run flawlessy and are clearly more recent/decent, however even in 11.6 poverplay wont work correctly anymore if you just try to click something in CCC, this is a bug, furthermore it wont work at all speaking of battery/line profiles, add that 11.6 (latest) game profiles neither dreams of work like if AMD stated that mobile users aren't deserving to be able to play on their (costly) machines, and the scenario will come at his worst, it must be a dream by force to have a control panel with every function shown working, profiles for games working and a simple and reliable official OC support either working ?
I've bought my second MBP cause it was perfect to every of my needs (in theory) and now here I am trying to get some more out of it, I can swear that I wont stop 'til I'll find a way to disable thunderbolt and give all the 16 lanes to vga, that one "supported 16x, link speed 8x" is simply unwatchable , unless some decent TB storage device will make its appearance.....after 2900 euros of machine plus 330 euros Win7, plus about 570 of 8GB1600 and 240GBrocketSSD makes my system total something like 5400USD, bad surprise to find out that if you wish to gulp the 8xVGA link shared with an 8x thunderbolt port you have to spend at least another 920euros/1300USD just to get the smallest Pegasus AND... a cable (sold separately, of course).
I wonder if is too difficult for them to give a software way to choose if you want to push the grafics or transfer data...after all we buy the machines from, the "you must use it as we tell you" doesn't apply to the hardware in the very same way as to the software, leaving out intellectual properties, physically it's MINE and I do whatever I want of it, extended but not limited to throwing it out of the window if I like, right ?
Why I have to stick with 4GB/s while 1° I without any doubt SOMETIMES I do backups and OFTEN I play games ? I want my 8GB/s for the VGA and the option to scale 8x when and ONLY when I should need to enable <ThunderBLOT>, period.
Yes, I'm a fanatic, period.
However, back to us, a deep research onto memory showed 990 as the limit at which the memory start saying some "WTF" (@9,55VDDC however), thus I decided to switch back at 950 and find the GPU limit.... my goal was to reach 800/1000 but this need power and power means heat so I found another compromise, 760/950 made sense for me in a 4/5 fashion, even if I found that 767/978 should give a big ununderstood boost to fps, theese are near limits for 9,55V on my machine, plus the XTL seems to like the 25Mhz steps finally I've had the idea to lower the voltage on a more stable setup ending with 760/950@9,4V ....a 35/50@-0,6V improvement over a 6770M clock is not so bad after all.....
Just a simple key-combo to switch back to BIOS defaults, which works fine resuming the up-'n-down config of the APM and the whole thing is running fine (the auto-overclock function takes care of pumpin-up the clocks on 3D apps launch but refuse to switch back at default BIOS settings, you know, the only drawback is just to remember pressing the key-combo after exiting the game....)
I know, the RAMDAC is still 400Mhz so the perfect tuning (at least for me) would be 800/1200 but I know that's nearly impossible, unless....
....when the warranty will expire nothing will stop me from bestthermalpasting and bestthermalpadding the baby, just to find out it's limits....I wish I could find some room for an IC a transistor and a TEC, but this is another story
Cheers..
I did a deep scrub of the old drivers cause I don't like messed things, when you install bootcamp it will install a lot of garbage along the video driver itself that's however nothing more than the official
supported 11.2 that I've installed and reinstalled again till I got stuck of messing things around and, erased every rest of 11.2 I did a clean install of latest 11.6 which seems to run flawlessy and are clearly more recent/decent, however even in 11.6 poverplay wont work correctly anymore if you just try to click something in CCC, this is a bug, furthermore it wont work at all speaking of battery/line profiles, add that 11.6 (latest) game profiles neither dreams of work like if AMD stated that mobile users aren't deserving to be able to play on their (costly) machines, and the scenario will come at his worst, it must be a dream by force to have a control panel with every function shown working, profiles for games working and a simple and reliable official OC support either working ?I've bought my second MBP cause it was perfect to every of my needs (in theory) and now here I am trying to get some more out of it, I can swear that I wont stop 'til I'll find a way to disable thunderbolt and give all the 16 lanes to vga, that one "supported 16x, link speed 8x" is simply unwatchable
, unless some decent TB storage device will make its appearance.....after 2900 euros of machine plus 330 euros Win7, plus about 570 of 8GB1600 and 240GBrocketSSD makes my system total something like 5400USD, bad surprise to find out that if you wish to gulp the 8xVGA link shared with an 8x thunderbolt port you have to spend at least another 920euros/1300USD just to get the smallest Pegasus AND... a cable (sold separately, of course).I wonder if is too difficult for them to give a software way to choose if you want to push the grafics or transfer data...after all we buy the machines from
, the "you must use it as we tell you" doesn't apply to the hardware in the very same way as to the software, leaving out intellectual properties, physically it's MINE and I do whatever I want of it, extended but not limited to throwing it out of the window if I like, right ?Why I have to stick with 4GB/s while 1° I without any doubt SOMETIMES I do backups and OFTEN I play games ? I want my 8GB/s for the VGA and the option to scale 8x when and ONLY when I should need to enable <ThunderBLOT>, period.
Yes, I'm a fanatic, period.
However, back to us, a deep research onto memory showed 990 as the limit at which the memory start saying some "WTF" (@9,55VDDC however), thus I decided to switch back at 950 and find the GPU limit.... my goal was to reach 800/1000 but this need power and power means heat so I found another compromise, 760/950 made sense for me in a 4/5 fashion, even if I found that 767/978 should give a big ununderstood boost to fps, theese are near limits for 9,55V on my machine, plus the XTL seems to like the 25Mhz steps finally I've had the idea to lower the voltage on a more stable setup ending with 760/950@9,4V ....a 35/50@-0,6V improvement over a
6770M clock is not so bad after all.....Just a simple key-combo to switch back to BIOS defaults, which works fine resuming the up-'n-down config of the APM and the whole thing is running fine (the auto-overclock function takes care of pumpin-up the clocks on 3D apps launch but refuse to switch back at default BIOS settings, you know, the only drawback is just to remember pressing the key-combo after exiting the game....)
I know, the RAMDAC is still 400Mhz so the perfect tuning (at least for me) would be 800/1200 but I know that's nearly impossible, unless....
....when the warranty will expire nothing will stop me from bestthermalpasting and bestthermalpadding the baby, just to find out it's limits....I wish I could find some room for an IC a transistor and a TEC, but this is another story
Cheers..
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there is something i don't understand :
i followed the guide of the first page and i run flawlessly at 790/1000 at 0.955
" FINAL UPDATE : ~790/1000 @ 0.955V is the best all-round overclock below stock voltage (ty to aznguyen316 for experimenting). Performance gains through overvolting and going above 800 core are minimal and not recommended ''.
i don't think that being more clear then that is possible anyway.
i followed the guide of the first page and i run flawlessly at 790/1000 at 0.955
" FINAL UPDATE : ~790/1000 @ 0.955V is the best all-round overclock below stock voltage (ty to aznguyen316 for experimenting). Performance gains through overvolting and going above 800 core are minimal and not recommended ''.
i don't think that being more clear then that is possible anyway.
there is something i don't understand :
i followed the guide of the first page and i run flawlessly at 790/1000 at 0.955
" FINAL UPDATE : ~790/1000 @ 0.955V is the best all-round overclock below stock voltage (ty to aznguyen316 for experimenting). Performance gains through overvolting and going above 800 core are minimal and not recommended ''.
i don't think that being more clear then that is possible anyway.
Let me guess...U have a good vram AND a 15" m8.
However I know that there are at least 3 revision of the card BIOS, to make it short I'm speaking of:
113-C0170K-04G
that seems related to 15" units
and
113-C0170R-04G
113-C0170R-04H
that both seems related to 17" units
does anyone knows something more about it ?
It could be also of some interest to find out if theese revisions has something to do with OC capabilities.
How do you check which bios version the machine has ?
i am curious to know mine...
