Mac Pro ICH

mathiasbmathiasb
Posted:
in Current Mac Hardware edited January 2014


Digging deeper on the Mac Pro's architecture and bottlenecks I 'discovered' the I/O Controller Hub (shortly ICH).


 


I read that it maxes out at 660MB/s, though I can't find more information about Apple's southbridge.


 


Is there anyone here who knows more about it and could tell me where I can find more technical details about the ICH? Is it the same for all generations of Mac Pro?

Comments

  • Reply 1 of 6
    mr. memr. me Posts: 3,221member


    Read and be wise.

  • Reply 2 of 6
    mathiasbmathiasb Posts: 14member


    I've read it already long ago... No mention of the Mac Pro.


    So apparently I'm not wise enough, that's why I ask it here...


     


    Anyone who can provide me info about the ICH in the Mac Pro?

  • Reply 3 of 6
    mathiasbmathiasb Posts: 14member


    Nobody who can answer?

  • Reply 4 of 6
    philboogiephilboogie Posts: 7,675member
    mathiasb wrote: »
    Nobody who can answer?

    Seeing your name all over the places that one would search for this info I presume you already have read this, but in case not:

    1000
    Enterprise Southbridge Interface (ESI)
    The North Bridge and South Bridge ICs are connected by an Enterprise Southbridge Interface (ESI) bus, a high-speed, bidirectional, point-to-point link supporting a thruput of 1 GBps in each direction.

    But that info is from 2008 and from a retired doc, o no, I don't know for sure. Sorry 'bout that.
  • Reply 5 of 6
    mathiasbmathiasb Posts: 14member


    Thx, I've indeed asked this on other forums.


     


    Theoretically (= following that document) should it reach up to 1GB/s, other report it practically goes up to 660MB/s, or 800MB/s.


    So I really don't know what to follow...

  • Reply 6 of 6
    philboogiephilboogie Posts: 7,675member
    mathiasb wrote: »
    Thx, I've indeed asked this on other forums.

    Theoretically (= following that document) should it reach up to 1GB/s, other report it practically goes up to 660MB/s, or 800MB/s.
    So I really don't know what to follow...

    Mail the owner of this site: http://macperformanceguide.com

    He's very kind, responsive and knows stuff like this. I wouldn't be surprised if he not only knows the answer, but can give you solid advise on how to configure your Mac Pro.
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