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    M50sv : Performance problems after downgrade from Vista to XP SP3

    Discussion in 'Asus' started by anterak13, Jan 12, 2009.

  1. anterak13

    anterak13 Newbie

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    Hello!
    happy new year to everybody!

    I've downgraded my M50sv install from vista to XP sp3, using a slipstreamed SP3 + sata installer CD. Then I've installed M50 XP drivers found on this forum for all components of the PC (VGA, sound, lan, wlan, modem, etc.).

    everything seemed to be fine yet I have a problematic high CPU consumption. Simple tasks which used to consume only 30% cpu under vista now consume 70%, and even when the computer is idle the CPU has bursts of 100% activity.

    I also installed ubuntu 8.10 in dual boot and the performance is fine under this OS, so it makes me think there is something wrong with this XP install.

    thanks for any help you can provide,

    regards
     
    anterak13, Jan 12, 2009
    #1
  2. azzario

    azzario Newbie

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    suspect the modem and help app.. disable sm56hlp(r).exe and disable the modem and dpc latency should drop.
     
    azzario, Jan 14, 2009
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  3. anterak13

    anterak13 Newbie

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    Hey Azzario! Thanks a bunch for your advice, it solved my problems!
    Now I've got a DPC latency of 145µs when the CPU is idle.

    The only problems is a PCI memory controller which won't work :
    from the device identification,
    PCI\VEN_1180&DEV_0843&SUBSYS_17671043&REV_12\4&2BF9155E&0&0AF0
    it seems like it is what appears as NVRAM under vista

    I could not find the driver for this thing.
     
    anterak13, Jan 24, 2009
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  4. E.B.E.

    E.B.E. NBR Procrastinator

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    Nice one about the modem, how did you figure it out azzario? From experience I assume? :)

    Don't know about the memory controller.

    (I'm moving this to the main ASUS forum since this is the Owners' Lounges and Reviews forum.)
     
    E.B.E., Jan 24, 2009
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  5. GenTechPC

    GenTechPC Company Representative

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    That's the Ricoh memory card reader, you can find the driver from the drivers disk.
     
    GenTechPC, Jan 24, 2009
    #5