Overclocking A MBP in OSX/EFI

[DoFoT9]

lol i wouldnt exactly call a computer clocked 100 MHz more a bragging right.

i would

 

[UltraNEO*]

Lol you overclockers are so funny, espicially laptop overclockers

You say that a small OC (like 100 MHz) will not harm you system, but what these 100 MHz will do to you? Will you go home from work faster or what?

This is so funny when some people break their heads (and MBPs) searching for a way to overclock under a risk of something happening to their 2000$+ Macs just to get those extra 100 MHz? LOL

I have to completely agree with you here. Those people who wanna OC their MBP's should of bought a faster system in the first place... All the headaches and worrying isn't worth 100Mhz.

Having said that, I'll be impressed if ANYONE here can get a 2.6Ghz, 2.5Ghz or 2.6Ghz Penryn running at 3Ghz or more and for it to be completely stable..

Good luck.

 

[JWest]

Lol you overclockers are so funny, espicially laptop overclockers

You say that a small OC (like 100 MHz) will not harm you system, but what these 100 MHz will do to you? Will you go home from work faster or what?

This is so funny when some people break their heads (and MBPs) searching for a way to overclock under a risk of something happening to their 2000$+ Macs just to get those extra 100 MHz? LOL

Hmm.. let's see:

Pay $250 extra for that .1 Ghz speed boost or overclock FOR FREE and get the same result...

Hmm... Silly me, I'd SO MUCH rather waste my money. Anyone interested in a free speed boost is a TOTAL IDIOT!! Burning $250 is so much fun! LOLZ!!



I know you won't get much performance out of a 2.5>2.6 bump, but if someone figures out a safe way to do it then by golly I'm in.

 

[DoFoT9]

I have to completely agree with you here. Those people who wanna OC their MBP's should of bought a faster system in the first place... All the headaches and worrying isn't worth 100Mhz.

Having said that, I'll be impressed if ANYONE here can get a 2.6Ghz, 2.5Ghz or 2.6Ghz Penryn running at 3Ghz or more and for it to be completely stable..

Good luck.

oh i donno in a laptop it might get pretty darn hot. would chill at 80°C in stead of 50°C lol

 

[UltraNEO*]

oh i donno in a laptop it might get pretty darn hot. would chill at 80°C in stead of 50°C lol

Yeah.. but that's OCin', things get hot..
anyway, they should think of it as a challenge!

Hmm.. let's see:

Pay $250 extra for that .1 Ghz speed boost or overclock FOR FREE and get the same result...

Hmm... Silly me, I'd SO MUCH rather waste my money. Anyone interested in a free speed boost is a TOTAL IDIOT!! Burning $250 is so much fun! LOLZ!!



I know you won't get much performance out of a 2.5>2.6 bump, but if someone figures out a safe way to do it then by golly I'm in.

It's not about the money, me thinks... I just think it's a waste time and effort (for me) doesn't mean you guys can't try.

Good luck!

 

[dukebound85]

hmm and here i am able to oc my q6600(quad 2.4) to over 3ghz no problem!

 

[DoFoT9]

hmm and here i am able to oc my q6600(quad 2.4) to over 3ghz no problem!

yea but its not the CPU that is the bottleneck in your case, its the OS

 

[JWest]

laptops have less OC headroom than desktops as well.

 

[eXan]

Hmm.. let's see:

Pay $250 extra for that .1 Ghz speed boost or overclock FOR FREE and get the same result...

Hmm... Silly me, I'd SO MUCH rather waste my money. Anyone interested in a free speed boost is a TOTAL IDIOT!! Burning $250 is so much fun! LOLZ!!



I know you won't get much performance out of a 2.5>2.6 bump, but if someone figures out a safe way to do it then by golly I'm in.

Who said its free? You are wasting so much time and efforts and there's no guarantee that your MBP wont be damaged because of this "procedure".

BTW, I also dont understand those who pay 250$ or more for 2.5 -> 2.6 GHz upgrade. Similar to how people pay 1600$+ for 3.2 GHz in Mac Pro instead of 2.8 GHz when benchmarks show that the performance difference is no more than 10%

 

[DoFoT9]

Who said its free? You are wasting so much time and efforts and there's no guarantee that your MBP wont be damaged because of this "procedure".

BTW, I also dont understand those who pay 250$ or more for 2.5 -> 2.6 GHz upgrade. Similar to how people pay 1600$+ for 3.2 GHz in Mac Pro instead of 2.8 GHz when benchmarks show that the performance difference is no more than 10%

its called future-proofing. that 400mhz may come in handy in the future, sure it may not prove important at all, but its just incase.

say for example, by the time Mac OS X 10.8 comes out, it might need a 3.2ghz intel blaablaa with 16gb RAM to run, and the 2.8ghz version might not be supported,

it might not turn out like that, but you never know i spose

 

[deadpixels]

yea but its not the CPU that is the bottleneck in your case, its the OS

nice one

 

[DoFoT9]

nice one

eheh thanks its a once in a lifetime thing.

 

[otispunkmeyer]

OC'ing is fine if it's in small amounts, so OC'ing the GPU is perfectly fine. However, I'm not sure how you'd go about OC'ing the CPU- like I said earlier, everywhere I've read says that the clock multiplier on the MBP's motherboard is locked, so you can't adjust the clocks.

generally you can get away with 10% OC on graphics chip, same with the memory. but thats only on my experience with desktop cards ive had:

fanless GF3 Ti200 = cant remember exactly but i got more than 10% reliably

9500Pro = 0.15micron fabbed chip, tiny heatsink considering the size of the die but no joke it went from 270/270 to 380/300. memory chips were a bit gash.

6800GT = 350/500 to 400/550 reliably, i thin 410/570 was its max

X1900XT = cant remember the clocks but it easily went past XTX speeds

in a laptop, im not so sure, specially in a MBP where the 3 main heat sources share the same heatpipe/heatsink arrangement. i dont think i'd try for more than 10% on the 8600 in there.

dont forget theres actually 3 clock speeds in nvidias chips now (has been since the 7 series) theres core clock (the one thats quoted) then memory, and then stream processor clock.

im not sure if the tools exist to adjust ech individually (ive been away from PC's for a while) but from what i remember you could only adjust the core clock (which increases things like the ROP's and filtering n stuff) and there was a little trick with doing it

performance would suddenly jump every 25mhz or so, it transpired that if you adjusted the core clock by say 20mhz, the shader/stream clock stayed put. but when you reach 25mhz, the shader clock jumped up to the next level.

so what you'd have to do is find the levels, could be a good chance that a small overclock on the core would yield absolutely nothing.

no point doing it in OSX really, in windows yeah for games, but OSX its not needed.

 

[caincha]

Old thread I know but I've been digging quite a bit and I feel like bumping this one.

First off why when anyone question 'how' to OC a Mac the usual reply is 'why'?
I mean, if I want to do it for the sake of doing it who cares about the 'why' - the hacking spirit should be always towards the 'how' no matter how little the reward after all you have to start small and then evolve to something big.

Coolins issues? Man please, let me worry about that will you?
My Mac runs at 35C with all fans at the minimum setup (smcFanControl) and if I want to overclock and/or hack my Mac I might be willing to install more fans, drill some holes, whatever - it's my computer and I want to tinker, help out or get out...


All that being said there is a tool for old G4 Macs and it works quite nicely. Been using on some PowerBooks to give them a little boost (some 15% GPU) which with added IDE SSD (hard to come by but they do exist) it does makes a difference.

Of course you would need to do some workaround like getting TenFourFox + flash tweak for up to date browsing experience and it would be nice to replace the thermal paste with Arctic Silver or Ceramique and placing some copper shims under the video card chips (there's quite a gap that Apple filled with LOTS of thermal paste) but again, that's the spirit of hacking is it not?

Anyway, tools to overclock and tweak those old G4 models:
-GPU overclock
http://thomas.perrier.name/

-FanControl
https://www.macupdate.com/app/mac/25043/g4fancontrol

-TenFourFox
http://www.floodgap.com/software/tenfourfox/

-Miscellaneous
http://lowendmac.com/2013/11-no-cost-tips-for-optimizing-mac-os-x-10-4-tiger-performance/



For newer Intel models - which is what I'm interested in - we've got Windows apps that runs under BootCamp but I haven't tested and got a feeling it won't 'stuck' it you boot OSX:

-NTune NVidia
http://www.nvidia.com/object/ntune_5.05.54.00.html

-Intel XTU
https://downloadcenter.intel.com/download/24075


And here's how you can access the EFI's underbelly but I don't know how to go from there and actually tune it like I would do a BIOS (previous page):
https://forums.macrumors.com/threads/overclocking-a-mbp-in-osx-efi.459433/#post-5206281


Anyone willing to actually help shed a light into those matters?