P5WD2 + 3.2 ghz 840 dual core, second core only runs at 2.8 ghz nomatter the load

Discussion in 'Asus' started by doug, Jun 25, 2005.

  1. doug

    doug Guest

    Just working on this new P5WD2 and the 3.2 ghz dual core 840 I noticed
    with some benchmarking that the second core seemed slower. After some
    further investigation I confirmed that the second core under 100% load
    only runs at 2.8 ghz. I dunno if this a a MB issue or if something is
    wrong with the processor. Any one have an experience with this? Also, so
    we're clear with what's going on, the first core under no load runs at
    2.8 ghz as well with the current bios settings. If I disable all the cpu
    power saving options in bios the first core then runs at 3.2 ghz all the
    time and the second still remains at 2.8 ghz.
    doug, Jun 25, 2005
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  2. doug

    Kingstew Guest

    I've got an 830 dual processor at 3G and not noticed a problem (but not sure
    how to test for this)

    You do need to set your windows power management settings to laptop for
    windows to be able to properly use the full power management features of
    these processors though so you could check that.
    Kingstew, Jun 26, 2005
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  3. doug

    doug Guest

    Bios settings alow the processor to run at 2.8 ghz when there is no load
    and this is working. Only problem is the second core stays at 2.8 ghz
    all the time, no matter if it's 100% loaded. I've been using CPUZ to
    tell me what mhz each core is running at.
    doug, Jun 26, 2005
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