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6750m extreme overclocking guide
- Thread starter Necriss
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Hi!
I have a 2011 early MBP 17 w/ 6750M and I didn't succeed to OC the GPU.
The problem is when I open the "overclocking" section in the last version of ATT, whatever I do, when I click "apply" I have a beautiful black screen, and I need to do an hard reset.
The CCC isn't installed, and I have disabled the "aggressive 3d detection" option.
Maybe the last ATT don't work with this MBP anymore?
I have a 2011 early MBP 17 w/ 6750M and I didn't succeed to OC the GPU.
The problem is when I open the "overclocking" section in the last version of ATT, whatever I do, when I click "apply" I have a beautiful black screen, and I need to do an hard reset.
The CCC isn't installed, and I have disabled the "aggressive 3d detection" option.
Maybe the last ATT don't work with this MBP anymore?
I just did this with the 6490M in my Early 2011 2.0 GHz 15" MBP and tried to run the benchmark built into ATI Tool and it crashed.
I have the voltage at 0.955v and the Core @ 900 and Mem @ 1000.
First of all, I have never overclocked a MacBook Pro's GPU before, but I have plenty of experience with desktop GPUs.
When the GPU crashes like that (black screen for a few seconds, then it flickers back to normal), does that mean that it is permanently damaged? That would really suck. (I'm under warranty still but not for long.)
And how does my setup look? Should I decrease the overclock or increase the voltage? Or just go back to stock speeds altogether? All I really use to game is Microsoft Flight Simulator X, which does slightly benefit from a faster GPU clock. It does use heavy AA and AF too.
Thanks.
I have the voltage at 0.955v and the Core @ 900 and Mem @ 1000.
First of all, I have never overclocked a MacBook Pro's GPU before, but I have plenty of experience with desktop GPUs.
When the GPU crashes like that (black screen for a few seconds, then it flickers back to normal), does that mean that it is permanently damaged? That would really suck. (I'm under warranty still but not for long.)
And how does my setup look? Should I decrease the overclock or increase the voltage? Or just go back to stock speeds altogether? All I really use to game is Microsoft Flight Simulator X, which does slightly benefit from a faster GPU clock. It does use heavy AA and AF too.
Thanks.
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Help!!
Just installed Win7 x64 on an SSD in my early 2011 MBP 17" 6750M, and trying to overclock using ATT.
The problem is, whenever I click "apply" or "OK" the clock speeds drop back to their default values. When I click to save a profile, it saves with the default clock speeds.
I am running the latest catalyst drivers (12.6)
EDIT: I downgraded to Catalyst 11.12 and OC is working now...would still be curious as to why the newest drivers are not allowing an OC though!
Just installed Win7 x64 on an SSD in my early 2011 MBP 17" 6750M, and trying to overclock using ATT.
The problem is, whenever I click "apply" or "OK" the clock speeds drop back to their default values. When I click to save a profile, it saves with the default clock speeds.
I am running the latest catalyst drivers (12.6)
EDIT: I downgraded to Catalyst 11.12 and OC is working now...would still be curious as to why the newest drivers are not allowing an OC though!
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Same is happening for me now too, only started about 2 weeks ago... possibly since I installed the new 12.6 drivers. The lower half of the screen flickers when I set the overclock, its completely fine if I don't enable ATT.
Anyone got any experience?
get 12.4 if you don't like the flickering from 12.6 😉
mine flickers once, once I overclock it, then it works seamlessly with 12.6.
I really Liked the 12.4 drivers since they seem to perform better on mine, and "proven" with the ATT overclock benchmark, don't know if it's a good Bench though 🙂
mine flickers once, once I overclock it, then it works seamlessly with 12.6.
I really Liked the 12.4 drivers since they seem to perform better on mine, and "proven" with the ATT overclock benchmark, don't know if it's a good Bench though 🙂
I'm trying to follow this guide on my late 2011 17" MBP with a 6770m, and I've downloaded and installed the ATI tray tool from the OP, but when I try to start the tool nothing happens. I've tried running it as admin, but get the same result.
Anyone else had this problem and figured out how to resolve it?
Anyone else had this problem and figured out how to resolve it?
Ok, figured it out. For anyone else trying to overclock their 67xxM, AMD's latest drivers omit two files that are needed for overclocking.
Is it possible to do a firm overclock? IE make it permanent so when booting OSX it would still apply?
I don't know. It's not something I've worried about because for me there'd be no reason to have an OC'd GPU in OSX.
I saw some discussion about it earlier in this thread but nothing of any substance materialized as far as I could tell. In any event, if you're OCing for gaming you're much better off using Windows in Bootcamp and just setting your OCs to autostart with Windows.
Also, I've found that in terms of OCing, the drivers that Apple uses for Bootcamp seem to be the most stable (the ones downloaded through the Bootcamp application in OS X). I created an OC profile in ATI Tray Tools for a core OC of 840MHz, memory at 1000MHz, and voltage at 1.005. I played DayZ on that OC for 30-40 minutes and didn't notice any problems.
I benched at a particular location where I was getting 21FPS with the factory clocks and after the OC I was getting 32FPS. That's quite an improvement! Temps initially went as high as 88C, but after the fans had ramped up to full speed the temps dropped down into the mid 70s and stayed there.
Just to be clear, this is on a 1GB 6770m.
I would love to know. The reason is if an OC is possible then so is an *underclock*. That's really what I'm trying to achieve, to reduce heat an noise on my MBP.
Yes I've done a bunch of things. Cooling pads, reapplying thermal past, fan control, modifying SMC, etc etc. Nothing helps much. In clamshell mode using discreet graphics with a cinema display, the 2012 MBP just heats up too much. So annoying.
Sorry to bump this but I'm about to chuck windows on my 2.2 Early '11 and wondered if this still works etc? Looks like a few people recently have had issues
Hey, to answer your question yes. It still works even on the newer Catalyst releases. I checked my clocks with GPU-Z and they're still overclocked.
Can anyone offer some opinions/advice. I have the late 2011 MBP with i7, 6750m 15" and the only reason Im trying this is because my temps get up to 78-86c when gaming and I know thats fine and normal temps for gaming but its still a little too hot for my liking considering it will be that hot for hours at a time I prefer to do as little damage as possible, I doubt 180 degree heat is good for a computer for 5 hours straight.
Anyways, Would there be any issues/problems if I simply left the speeds at 600/800 and underclocked to .855 or .875? I run gw2 with zero issues peformance wise but my CPU stays above 80c, my gpu usually stays around high 70s and never goes into 80s but less heat anywhere is better. Would there be any issues gaming with it at lower voltage?
Also is there anyway to lower cpu temps? I already run maxed fan speeds with Lubbos and have a little fan on my keyboard the entire time which reduces temps roughly 5c but would using throttlestop to boost the performance a little lower temps?
I know overclocking or w/e would increase temps but if for example it was at 100% usage the entire time, and overclocking allowed u to do the same tasks at 90% or less would that mean lower temps?
Any help appreciated!
Anyways, Would there be any issues/problems if I simply left the speeds at 600/800 and underclocked to .855 or .875? I run gw2 with zero issues peformance wise but my CPU stays above 80c, my gpu usually stays around high 70s and never goes into 80s but less heat anywhere is better. Would there be any issues gaming with it at lower voltage?
Also is there anyway to lower cpu temps? I already run maxed fan speeds with Lubbos and have a little fan on my keyboard the entire time which reduces temps roughly 5c but would using throttlestop to boost the performance a little lower temps?
I know overclocking or w/e would increase temps but if for example it was at 100% usage the entire time, and overclocking allowed u to do the same tasks at 90% or less would that mean lower temps?
Any help appreciated!
I've heard of people leaving their macbooks on overnight for doing some rendering and that keeps their cpu usage/temps fairly high for a long period. The disadvantage of undervolting+overclocking your gpu is that it will become fairly unstable. You have to find the sweet spot.
One way to decrease temps is replacing the thermal paste and probably drilling holes under your macbook but for sure you wouldnt take the route lol. Undervolting would be the easiest way to decrease temps just make sure to find the right numbers 😉
Re-Apply the thermal paste or get a cooling stand with fans. I use the cooler master u2 since it was affordable and was recommended to my by someone else who overclocked their machine. These are pretty much the only things you can do to keep your computer cool.
Hm after messing around with undervolting my 6750m I ran into some problems. First I tried playing GW2 running 615/815 at .875v and I got a blue screen after about 5 minutes, then I raised the voltages to .900 and .955 and keep getting blue screens, Im not even overclocking the card everyone seems to be stable on stock speeds at lower voltages, I just wanted to lower the temps but it keeps going blue screen on me so I had to reboot and not do it. What could cause this?
when I reapplied my thermal paste, the temps for the GPU actually got higher maybe because I removed a huge gunk of excess thermal paste, that might have kept the heat from the CPU a bit isolated.
does anyone know if installing new drivers on bootcamp is the same as any other windows machine? ie just download and install?
Tried OC'ing my 6770m and my numbers are a little different...
At 900/1100 (core/mem)[stock is at 725/900] after 3h of gta 4 (1600x900textures medium, everything else on low or off; view distance 30 and detail at 14 or so) could get average 55 fps at 62 degrees MAX, it stays most of the time at 60 or so.
After these good numbers, tried 1000/1100 ( core/mem), but it crashes everytime..
I havent even changed the voltage, as I really dont need better than this right now.
Just my experience, hope it helps some one 😀
At 900/1100 (core/mem)[stock is at 725/900] after 3h of gta 4 (1600x900textures medium, everything else on low or off; view distance 30 and detail at 14 or so) could get average 55 fps at 62 degrees MAX, it stays most of the time at 60 or so.
After these good numbers, tried 1000/1100 ( core/mem), but it crashes everytime..
I havent even changed the voltage, as I really dont need better than this right now.
Just my experience, hope it helps some one 😀