Xeon x5687

Discussion in 'Mac Pro' started by JD575, Nov 12, 2014.

  1. JD575 macrumors member

    Nov 12, 2014
    Hello, I am attempting to upgrade my dual CPU 2009 Mac Pro and would like to know if anyone has used the x5687 in their dual CPU Mac? I know some have tried it in a single CPU machine with no success.

    I know the 3.46 version works. Maybe I will find a vendor with a decent return policy.

  2. CASLondon macrumors 6502a

    Apr 18, 2011
    I think this would be a waste of time, it isn't supposed to work. I have seen one user on the Netkas forum try it with no success. Some have gotten the x5677 to work, others have had issues.

    Much easier to go with a 5680-90, or a 5679 which would work
  3. flowrider macrumors 603


    Nov 23, 2012
    When I upgraded the last time, I wanted to put in X5687. But I searched all sources that I could think of, and could find no X5687 installations in a Mac Pro. Even Geekbench which has a very large database of CPU installations has no installations on a Mac Pro or Hackintosh. In the end I went with two X5677, they are working fine.

    Note: The X5679 is a different animal, it's a 6 core, 3.2 GHz. I assume the OP, like me, was looking for the fastest 4 core CPU available that would work in a Mac Pro. The X5677 is it.


    Attached Files:

  4. h9826790 macrumors G4


    Apr 3, 2014
    Hong Kong
    I think it's better to avoid this "unknown" CPU for a dual 4,1 upgrade. Otherwise, you may never know if you didn't install the heatsink correctly, or the CPU itself doesn't work.
  5. JD575 thread starter macrumors member

    Nov 12, 2014
    Thanks for info

    Hey everyone thanks for the info. I was hoping a few of you with experience would reply. I have read some of your threads in the past.

    Sounds like X5677 might be it. Should I go new if possible? I assume the stepping needs to match?

    Flowrider, are you still happy with your setup? Is there anything special I need to know about the X5677? Numbers look good.
  6. ilikewhey macrumors 6502a

    May 14, 2014
    nyc upper east
    i think ur better off with a x5675, it turbo to 3.4ghz from a 3.06ghz and its the highest clock for a 95watt tdp.
  7. thornslack macrumors 6502

    Nov 16, 2013
    Just my two cents, I also installed dual x5677 processors in my 2009 and it's been great. I wanted the fastest possible clock and didn't require 12 cores. I went used off ebay, pretty cheap and no regrets.

    I read online that "there might be issues" or "memory problems," but everyone I found who actually went this route has been very pleased. I rather suspect that they're just underutilized and therefore less is known. Best of luck with your mod!
  8. flowrider macrumors 603


    Nov 23, 2012
    Yes, if I had it to do over again, I'd do the same thing. I did have one small glitch. Of the first two that I got, one of them would not read RAM slot two, the vendor gladly exchanged it, and all has been fine. Nothing special about the installation on a 5,1 Mac Pro. You, of course on a 4,1, will have challenges I didn't have.

  9. JD575 thread starter macrumors member

    Nov 12, 2014
    Do you guys have any suggestions on a good vendor on eBay or elsewhere? Unless we are not allowed to ask in this forum.

    Flowrider/Lou, I assume what you mean by "challenges" is the need to modify the firmware? Sounds like your vendor was very responsive with your issue.
  10. MacVidCards Suspended

    Nov 17, 2008
    Hollywood, CA
    If you think the challenge is the firmware, you have some reading to do.
  11. flowrider macrumors 603


    Nov 23, 2012
    No, the Firmware mod is quite easy. The 2009 4,1 Dual Processor Mac Pro uses lidless CPUs. These CPUs were manufactured with no head spreader, and to install lidded CPUs (which everyone sells) you need to compensate for the added height of the lidded CPUs. There is much discussion and DIYs on this forum from folks who have tried and succeeded and well as those who have failed.

    Updating the CPUs a 4,1 DP Mac Pro is something I, personally, would not do, but as I said many have tried and most have succeeded. If you'd like, I can lead you to the DIYs. LMK.

  12. JD575 thread starter macrumors member

    Nov 12, 2014
    I hear you. I know the issues with with the lidless cpus and how some DIYers compensated for the extra height. I have built PCs in the past and I learn patience and testing goes a long way to making sure things are done right :D.

    I will take you up on your DIY links just in case you have some that I haven't visited.

    Thanks again, JD.
  13. JD575 thread starter macrumors member

    Nov 12, 2014
    Thanks Lou, I agree. I had checked this one out too. The site is informative. Whats interesting is that he states that the x5687 is a possibility and I have attempted to contact him about it, but got no reply.

  14. MacVidCards Suspended

    Nov 17, 2008
    Hollywood, CA
    I wouldn't get too excited.

    He also states of the 3,1:

    CPUs can be upgraded to X5492 running at 3.33GHz but these are rare and costly. Reckon on $500 a pair. Not much of a speed gain over stock.

    Which is also 100% WRONGO !!!

    I wonder how many poor bastxxds have purchased incompatible CPUs as a result of this poor advice.

    The guy did everyone a HUGE favor putting that guide together. Fixing these typos would be awesome.
  15. stjames70 macrumors member

    Jul 5, 2009
    just buy tried and true chips

    Unless you are getting a huge bargain on those chips, the X5670, X5680, or X5690 are tried and true chips on the 4,1 and 5,1 machines. I installed dual x5670s on my 4,1 just by following instructions from Pindelski's website, and it pretty much got me there within two hours (one hour wasted shooing away my 5 and 7 year old children).

    Mac Pro (Mid 2010)
    Single-Core Score Multi-Core Score
    Geekbench 3.1.6 Tryout for Mac OS X x86 (32-bit)
    2329 23461
    Result Information
    Upload Date November 14 2014 03:54 AM
    Views 1
    System Information
    Mac Pro (Mid 2010)
    Operating System Mac OS X 10.10.1 (Build 14B23)
    Model Mac Pro (Mid 2010)
    Processor Intel Xeon X5670 @ 2.93 GHz
    2 processors, 12 cores, 24 threads
    Processor ID GenuineIntel Family 6 Model 44 Stepping 2
    L1 Instruction Cache 32 KB x 6
    L1 Data Cache 32 KB x 6
    L2 Cache 256 KB x 6
    L3 Cache 12288 KB
    Motherboard Apple Inc. Mac-F221BEC8
    BIOS Apple Inc. MP51.88Z.007F.B03.1010071432
    Memory 65536 MB 1333 MHz DDR3
    Integer Performance
    Single-core 2459
    Multi-core 26930
    Single-core 1864
    1.60 GB/sec

    Is your Mac up to speed? Find out with Geekbench!

    Well, not so great for single core performance, but not too shabby for multicore performance. Really cheap and it works.

    Although, I swear that the results were closer to 27000 multicore when I first tested it in Mavericks -- and this Yosemite build is 10.10.1 -- perhaps not ready for primetime?
  16. flowrider macrumors 603


    Nov 23, 2012
    Though not as popular, the X5677 certainly is Tried and True:


    For folks who don't need 12 cores, but require fast 8 cores, the X5677 is ideal.

  17. JD575 thread starter macrumors member

    Nov 12, 2014
    I agree, he did a great job on the guide. However, since I never received anything back from him on my inquiry, I figure he may not stand by those statements. Or just not interested in replying. Who knows.

    I moved on and I am looking around for some x5677s.

Share This Page