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Posted by Bill Vermillion on 12/22/05 05:15
In article <43A1BEA3.A14F2889@mindspring.com>,
smh <smhong@mindspring.com> wrote:
>. --------------------------------------
> Mike Richter, were you born with
> "Scam Artist" emblazoned on your face?
> --------------------------------------
>
>"come_mon_come_mon!" wrote:
>> smh 寫道：
>>
>> > > > Go into the BIOS, and check the drives are recognized and set to
>> > > > something like Auto or Enable.
>> > >
>> > > I found no similar setting, every time I insert a H/W component into
>> > > the IDE bus, BIOS will automatically display it's configuration (e.g.
>> > > LG GSA-4167B...) as PC started up.
>> >
>> > What do you have in the BIOS setup if not AUTO or Enable?
>>
>> If you talked about IDE master slave setup, I could tell you that the
>> BIOS automatically displayed what it detected, that's it. I couldn't
>> press key to change the setting shown.
>>
>> >
>> > > > Then check the drives are on DMA:
>> > > >
>> > > > Control Panel, Sytem, Hardware, Device Manager, Ide Ata/Atapi
>> > > > Controllers, Primary or Secondary IDE channel, Advanced tab
>> > >
>> > > Checked, it's DMA mode 2.
>> >
>> > What's the DMA mode of Sony?
>>
>> Also DMA mode 2
>Was thinking maybe you misread. The graph you posted shows high cpu
>usage giving indication that the drive is on PIO. Yet it's on DMA. Can
>you check the cpu usage for hard disk operation?
It could indicate DMA in the BIOS but the OS could be running PIO
mode. If you get some slowness on a drive that is normally fast -
and the slowness could be any temporary hiccup in the OS - then
the OS can set the drivers to PIO even though the BIOS shows DMA.
You have to delete the device, and then reboot, and the OS will say
it finds new hardware, will set the DMA mode, and then you reboot
to use it. A real PITA.
--
Bill Vermillion - bv @ wjv . com
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