130W TDP XEONS in 2009 DP cMP 4.1

Discussion in 'Mac Pro' started by Powermange, Nov 20, 2014.

  1. Powermange macrumors member

    Powermange

    Joined:
    Oct 1, 2013
    Location:
    Sweden
    #1
    Hi!
    Like the "Title" says. I know my cMP 4.1 (upgraded to 5.1, thank you for that tool) is spec'd for 95w TDP processors and they peak at the X5675 (a.f.a.i.k.?)
    But i've read several posts from people using 130W TDP processor for upgrade?!

    Clearly outside spec but it seems to work, right?!

    Has anyone been unsuccessful in using 130W processors like X5690? (and dare share :))

    Is it more likely the limitations is in heat dissipation or power draw?

    Will it depend on overall system configuration? (drives GPU, etc) or processor circuitboard?

    I appreciate the fact that noone knows these things for sure but there seems to be plenty people in here giving VERY educated guesses :)

    Thankful for all thoughts
     
  2. Thessman macrumors regular

    Joined:
    Dec 8, 2005
    Location:
    GR
    #2
    You can use any CPU of the line, 130 watt or less. It is spec'd for up to and including 130 watts.
     
  3. flowrider macrumors 601

    flowrider

    Joined:
    Nov 23, 2012
    #3
    I have updated my CPUs twice in my 5,1 DP Mac Pro. Both times were with 130w TDP Processors. First with W5590 and then with X5677. The X5677 seems to run a bit cooler than the W5590s and I am running my fans slower, but I am running my fans a bit faster than stock, see attachment. I ran the W5590s for well over a year and have about 4 months on the X5677s. No issues at all.

    Lou
     

    Attached Files:

    • Fans.jpg
      Fans.jpg
      File size:
      109.1 KB
      Views:
      104
  4. Fangio, Nov 20, 2014
    Last edited: Jan 17, 2015

    Fangio macrumors 6502

    Joined:
    Jan 25, 2011
    #4
    Don't underestimate X5675's

    I'd say for the dual prozessor machines Apple has choosen the X5675 as top option for a reason. It will turbo up to 3.46GHz and power-/energywise, still keeps a reasonable footprint. The 64-bit GB score of ~29k is also very close to those 130W CPUs.

    I'm running the intake & exhaust fans at ~1050 rpm and everything else on auto now. IMO it's actually well balanced, very quiet and currently best bang for the buck.
    [​IMG]
     
  5. RoastingPig, Nov 20, 2014
    Last edited: Jan 16, 2015

    RoastingPig macrumors 68000

    RoastingPig

    Joined:
    Jul 23, 2012
    Location:
    SoCal
  6. Powermange thread starter macrumors member

    Powermange

    Joined:
    Oct 1, 2013
    Location:
    Sweden
    #6
    Ok awesome, thank you all for answers. Exactly what i wanted to hear. So is the x5690 the fastest that will fit or is there others? How much does 5690 boost to?

    Pimping this wonderful old apple box has become a very interesting pasttime of mine :) on to finding a more modern GPU :)
     
  7. Fangio macrumors 6502

    Joined:
    Jan 25, 2011
    #7
  8. Horselover Fat macrumors member

    Joined:
    Feb 2, 2012
    Location:
    Germany
    #8
    Hm, turbo boost...
    Now two of you have referred to this possibility, one with the 5675 the other with 5690s. Can you really do this on OS X? I always thought a BIOS is necessary to do this.

    I'm also thinking about the 5690 option. This summer I put two 5660 into my early MP2009 and this was a nice performance boost.
     
  9. Zwhaler macrumors 603

    Zwhaler

    Joined:
    Jun 10, 2006
    #9
    Do you boost your fan speeds or is everything else stock
     
  10. h9826790 macrumors 604

    h9826790

    Joined:
    Apr 3, 2014
    Location:
    Hong Kong
    #10
    Yes, turbo boost is avail under OSX.
     
  11. Gav Mack macrumors 68020

    Gav Mack

    Joined:
    Jun 15, 2008
    Location:
    Sagittarius A*
    #11
    Two different Xeons would not link correctly to each other with the QPI link.

    5690's here in the UK are going for insane prices on ebay, though USA prices are much cheaper the tax is significant but nevertheless still at a premium to the slightly lower clock 5 Series even for buying over there. If you could pick up a pair of 80 or 75 models for a fraction of the price for that tiny fraction less performance I would go for the bargain - unless you simply want it maxed out.
     
  12. Horselover Fat macrumors member

    Joined:
    Feb 2, 2012
    Location:
    Germany
    #12
    Ah, I just learned it is something that the OS or the CPU does by itself under certain CPU demand and with enough thermal headroom.
     
  13. RoastingPig macrumors 68000

    RoastingPig

    Joined:
    Jul 23, 2012
    Location:
    SoCal
    #13
    everything stock
     
  14. TruckdriverSean macrumors 6502a

    Joined:
    Feb 28, 2009
    Location:
    Texas, US
    #14
    Yes.

    Not to be confused with overclocking, which raises the base clock and boost to even higher levels.
     
  15. Powermange thread starter macrumors member

    Powermange

    Joined:
    Oct 1, 2013
    Location:
    Sweden
    #15
    Two X5677's successfully installed now, no issues! Thanks
     
  16. flowrider macrumors 601

    flowrider

    Joined:
    Nov 23, 2012
  17. Larry-K macrumors 68000

    Joined:
    Jun 28, 2011
    #17
  18. brand macrumors 601

    brand

    Joined:
    Oct 3, 2006
    Location:
    127.0.0.1
    #18
    I like to think that Apple chooses all of their components for a reason.

    Do you have anything other than conjecture as to why Apple chose the X5675 processors that they did?
     
  19. Surrat macrumors 6502

    Surrat

    Joined:
    Jun 20, 2014
    Location:
    United States
    #19
    I would take a wild guess that the VRM isnt rated for dual 130w cpu's. Maybe it runs very hot when using dual 130's? has anybody temp checked it vs the 95 watt chips like the 3.06.
     
  20. flowrider macrumors 601

    flowrider

    Joined:
    Nov 23, 2012
    #20
    ^^^^For temps of the 130s see my post #3 above.

    Lou
     
  21. Fangio macrumors 6502

    Joined:
    Jan 25, 2011
    #21
    Sure. So which part of well balanced you didn't get? :rolleyes:
    Apple isn't exactly known for stating reasons for decisions to offer certain options, but they are for leaving also desireable ones out. So everyone is free to speculate. My guess would be power consumption. It's nice to still have the same after the upgrade as this cMP is running 24/7.
    ---
    Congrats!
     

Share This Page