Macbook Pro Unibody GPU and CPU overclocking - And with problems

Discussion in 'Windows, Linux & Others on the Mac' started by spazticorange, Mar 14, 2009.

  1. macrumors newbie

    Joined:
    Mar 14, 2009
    #1
    So this is another one of the many overclocks out there... Only this time I didn't dare push it too far. I'm running on the Late 2008 15" 2.4 GHz model. Managed to hit 2.7 Ghz and still having it run stable. I've also increased the core clock and memory clock of the GPU it's self.
    [​IMG]
    I never had the chance to run 3dMark06 on the system with the overclocked settings.

    Apparently the computer crashed when i restarted it. First there was a flicker of distortion on the screen when windows started into the desktop. A few seconds later it appeared again and this time it decided to stay. I force restarted the system and it appeared again. I'm guessing this happens to many of the people who have tried overclocking their systems with nVidia's new nVidia System Tools 6.03. It's the only version out there that completely detects the nforce chipset in the new MBPs.

    Anyone with any ideas as to how to keep the system running in the OCed settings without having to force our fingers onto that beautifully placed power button?
     
  2. macrumors 6502

    Joined:
    Oct 1, 2007
    #2
    You overclocked the CPU? How'd you do that?
     
  3. macrumors Penryn

    Eidorian

    Joined:
    Mar 23, 2005
    Location:
    Cuidad de México
    #3
    You're tempting fate with the already razor thin thermals on Apple's notebooks.
     
  4. macrumors 6502

    Joined:
    Oct 1, 2007
    #4
    I'm just curious how he did it. I didn't think you could overclock a Macbook Pro- aren't the clock multipliers locked down at a hardware level?
     
  5. macrumors Penryn

    Eidorian

    Joined:
    Mar 23, 2005
    Location:
    Cuidad de México
    #5
    It's front side bus overclocking in this instance for the CPU.

    I know there are a few programs that will let you tweak it within Windows. Sadly the name(s) escape me.
     
  6. macrumors 6502

    Joined:
    Oct 1, 2007
    #6
    Yes, but you need the PLL, and I don't believe they're known for Apple hardware.
     
  7. macrumors 6502a

    Timur

    Joined:
    Oct 14, 2008
    #7
    To under/overclock an NVidia based Macbook (Pro) just download NTune from NVidia. It lets you change the Frontsidebus, GPU clocks and even Memory timings.
     
  8. macrumors 6502

    Joined:
    Oct 1, 2007
    #8
    That's what I use on my early '08 MBP, but it only lets me adjust GPU settings, not CPU settings. Probably because the early '08 MBP's use an intel chipset :(
     
  9. thread starter macrumors newbie

    Joined:
    Mar 14, 2009
    #9
    hey guys... i figured out what the issue was... apparently, after moving on to windows 7, all the crashing issues solved... This time, i've managed to push my settings up to a whooping 2.95 GHz... defeats the purpose of getting the faster models now eh?? lolz... the heat given out can be used to fry eggs or boil water, whatever turns you on...

    Graphics core at 600 MHz and the shader clock at 1500MHz... the GRAM clock at 860 MHz...

    System memory clock is at 630 to 650 MHz... I've changed the timings to match the SPD settings for when it's running in actual 1066 MHz... System is very stable but the heat is the only thing which makes me worry...

    I wonder if someone will come up with a water bed or something for this powerhouse... Would make everything seem interesting... Of course the gaming gains are not very significant... but smoother gameplay can be experienced in Neverwinter Nights 2...

    All done with the 6.03 version of nVidia System Tools... Running windows vista...
     
  10. macrumors 6502a

    runebinder

    Joined:
    Apr 2, 2009
    Location:
    Nottingham, UK
    #10
    Really interesting thread, have never realised you could overclock the MBP, I have the same model as you, have to admit there is a part of me that wants to try this lol.

    However with the heat increase you'll find that you're reducing the lifespan of your MBP. On a desktop with decent cooling this can be addressed, however wouldn't want to risk it on something I've spent this much money on. All the best though, hope you find a decent cooling solution.
     
  11. macrumors 68020

    Gav Mack

    Joined:
    Jun 15, 2008
    Location:
    Sagittarius A*
    #11
    My uMBP's upper left side speaker where the GPU sits underneath gets far too hot for my liking, so much so it mostly sits on a Zalman cooler. Before the year is out it's going to get looked at and I'll give the technician some Arctic Silver thermal paste if it doesn't need replacing.

    Add the very tight cooling specs already mentioned and the fact that the late penryn/early unibodies have Nvidia GPU's that could have defective bump material inside which are frying in all kinds of notebooks causing a massive charge on Nvidia's profits means you're gambling at best.

    Unless you can find a liquid nitrogen powered cooler! :D
     
  12. macrumors P6

    DoFoT9

    Joined:
    Jun 11, 2007
    Location:
    Singapore
    #12
    if you keep it at that frequency ill be surprised if its still working in 6 months.
     
  13. macrumors 68000

    w00t951

    Joined:
    Jan 6, 2009
    Location:
    116th & Broadway
    #13
    That much of a performance gain can't really be utilized, so I think that best thing to do would be to leave it alone, as overclocking voids the warranty, shortens the life of internal components, and does all sorts of crazy crap with your computer. Has anyone noticed how the fans in the 2008 Unibodies don't seem to rev up ? My CPU is at 144 and the fans are still at ~2000 RPM. I knew that Apple preferred a silent but toasty machine, but isn't this kind of pushing it?:confused:
     
  14. macrumors regular

    Joined:
    Nov 22, 2008
    #14
    I don't mean to hijack this thread but I have a simple question. I'm planning on buying a Macbook Pro 13" for collage but I'm not sure if the 2.26GHz will be all that much slower then the 2.53GHz model. Is there anyway to purchase the 2.26GHz and bump it up to at least 2.53GHz? I already have 4GB of ram and a 500GB HDD laying around so thats not the problem. I'll be using this MBP for things like jail-breaking, some video encoding (.MKV 1080p - .MP4 Universal iTunes), downloading, and once in a while a light gaming session, nothing major. Anyone know if the extra $300 is worth it?
     
  15. macrumors P6

    DoFoT9

    Joined:
    Jun 11, 2007
    Location:
    Singapore
    #15
    LOL so basically you will be downloading illegal BluRay rips... :D i dont see why that needs a faster processor..

    the light gaming wont be much of an issue either, if you have the 300 you may aswell put it in, the machine will last longer.
     
  16. macrumors regular

    Joined:
    Nov 22, 2008
    #16
    Lol <.<, >.>

    nooo who said anything about that?

    I plan on selling it once a year so lasting longer isn't a big deal just as long as it stays in near perfect condition, so of course I'll have to invest in some kind of case. How about 1080p playback? I know I'll have to attach it to a external monitor but does anyone know if the recuced speed from 2.4GHz to 2.26GHz will make the video all choppy and pixelated?

    P.S.
    Like most Mac people, I have a obsession with brand new shiny toys v.v. Just upgraded my 3G to a 3G S and could use a more portable laptop for school and just because I like that new :apple: smell.
     
  17. macrumors P6

    DoFoT9

    Joined:
    Jun 11, 2007
    Location:
    Singapore
    #17
    well mkv is basically only used for torrenting... not that i know that or anything ;)

    it will be FINE for 1080p playback, my old original CD MBP can play them using Plex, its a great app. yours will be fine with the whole better GPU and CPU technologies and such.
     
  18. macrumors regular

    Joined:
    Nov 22, 2008
    #18
    Yeah, Plex is a great program considering it's the only one I can find that supports dual core CPU's, VLC refuses to add this feature last time I checked and I'm not to sure about iTunes. Now one more question, Since I won't be starting until August 26th or so, Should I wait until then or October on the last day of the free iPod touch deal. Does anyone have any reason to believe there might be a refresh around that time? Since we just had one I wouldn't expect one any time within that time frame except maybe a couple weeks after the promo is over. I just don't want to go out and buy a "new" 13" MBP and then they bump the cheapest one to 2.6GHz or something along those lines lol
     
  19. macrumors P6

    DoFoT9

    Joined:
    Jun 11, 2007
    Location:
    Singapore
    #19
    there will be no updates for the MBP/MB until at least jan next year, so i think your safe for the time being!
     
  20. macrumors regular

    Joined:
    Nov 22, 2008
    #20
    Thanks alot for all your help!:D Now to go out and buy a brand new 13" MBP.
     
  21. macrumors P6

    DoFoT9

    Joined:
    Jun 11, 2007
    Location:
    Singapore
    #21
    even though im not interested in the 13" i can honestly say that i am extremely jealous ;) goodluck with it!
     
  22. macrumors member

    Joined:
    Oct 5, 2009
    Location:
    Motherwell, Scotland.
    #22
    lol ^^ says he with the i7 imac.
     
  23. macrumors P6

    DoFoT9

    Joined:
    Jun 11, 2007
    Location:
    Singapore
    #23
    baha true, but the imacs hadnt been released at that time and i had no intentions (ie available funds) to upgrade then. now i do :D hehe
     
  24. macrumors 68040

    Stridder44

    Joined:
    Mar 24, 2003
    Location:
    California
    #24
    +1

    Hot damn please be careful OP.
     
  25. macrumors newbie

    Joined:
    Nov 24, 2009
    #25
    Yes it is but with smcfancontrol running @ 6000 RPM i allways saty under 67oC every where. I overclock my MBP :
    CPU from 3,06 ghz to 3,495 ghz
    GPU : core clock from 500 to 700
    memory clock from 700 to 900
    vertical.. from 1250 to 1400
    and now games are more fluid when maxed out
     

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