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BIOS - Interleaving etc.

Discussion in 'Workarounds and Optimization' started by Smaily, Jul 20, 2013.

  1. Smaily

    Smaily Well-Known Member

    Sep 19, 2011
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    Anyone knows what shoud I choose BIOS settings as for best results?

    Total processors: 8 (2xQuad core Intel(R) Xeon(R) CPU E5405 @ 2.00GHz)
    RAM: 32GB (16x2GB)
    Interface is running bond mode 6.
    Server used as webservice for domains, apache, mysql, mail.

    Current Bios,
    - Force PCI-E Gen2 slot to Gen1 mode [Auto]
    Force PCI-E Gen2 port operate at Gen1 mode for compatibility issue with some PCI-E Gen1 card.
    - Dual Graphic WinXP Support [Disabled]
    Enabled for dual VGA card support under Windows XP
    - Intel VT for Directed I/O (VT-d) [Disabled]
    Enable/Disable Intel Virtualization Technology for Directed I/O (VT-d) by reporting the I/O device assigment to VMM through DMAR ACPI Tables.
    - Crystal Beach Configure Enable [Disabled]
    Enable Configuration /Memory mapped accesses to the Crystal-Beach Configuration space located in Device 8, Fn 0 and Fn 1.
    - SERR signal condition [Single bit]
    Select ECC error conditions that SERR# be asserted.
    - 4GB PCI Hole Granularity [512 MB]
    Select the granularity of PCI hole for PCI resource, if MTRRs are not enough, we my use this option to reduce the MTRR occupation
    - Memory Branch Mode [Interleave]
    Enumerated host mode. Dev16 Func1 Reg.40h bit 16 and Reg.58[14]
    - Branch 0 Rank Interleave [4:1]
    Select Branch 0 Rank Interleave
    4:1 (default)
    - Branch 0 Rank Sparing [Disabled]
    Enables Branch 0 rank /DIMM sparing feature.
    - Branch 1 Rank Interleave [4:1]
    Select Branch 1 Rank Interleave
    4:1 (default)
    - Branch 1 Rank Sparing [Disabled]
    Enables Branch 1 rank /DIMM sparing feature.
    - Enhanced x8 Detection [Enabled]
    Enables enhanced x8 DRAM UC error detection
    - Empasize DRAM Driving Strenght [Enabled]
    [Enabled/Disabled] Empasize DRAM Driving Strength
    - Force ITK Config Clocking [Disabled]
    Enables FBD configuration for ITK test suite
    - Enable Multimedia Timer [No]
    Enable/Disable Multimedia Timer support.
    - Snoop Filter [Enabled]
    Snoop Filter may reduce system dependent on memory configuration and application used.

    If anything suggested to be changed then why would it become better?
  2. thinkbot

    thinkbot Well-Known Member

    Oct 30, 2012
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    BIOS settings won't make much difference

    the key is your script and database
  3. cPanelMichael

    cPanelMichael Technical Support Community Manager
    Staff Member

    Apr 11, 2011
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    Hello :)

    I don't see any settings that you should change, however you may want to consider consulting with a qualified system administrator or posting on a forum that specializes more in BIOS optimizations. You will likely get more input from another resource because BIOS configuration is not often discussed on this forum.

    Thank you.
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