A mis-set or conflicting interrupt. Are you sharing modem and soundcard
irqs?




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On Tue, Jun 3, 2014 at 7:19 PM, <rauno.oll...@vaasalainen.com> wrote:

> @ Eric Auer <e.a...@jpberlin.de>:
>
>
> * Maybe your BIOS is configured to support "legacy USB" methods
> * to let DOS access USB keyboard or mouse without USB drivers?
> * In that case, the BIOS can spend quite a lot of time to deal
> * with the USB controller. Try using USB keyboard and mouse. To
> * be on the safe side, leave the legacy USB support on anyway,
> * it will not waste much time if no devices are active and you
> * may need it to navigate the BIOS CMOS setup config dialog :-)
> *
> ==================================================================
> - My BIOS was configured to support "legacy USB"... So I tried to
>  replace PS/2 keyboard and mouse with USB devices. It didn't help at
>  AutoCAD drawing regeneration speed but....
> - You wrote that "the BIOS can spend a lot of time to deal with the
>   USB controller". I understand this means dealing with USB devices
>  that does'nt exist....?.
> - Legacy USB support was on at testing. If I try it off and end up
>  into trouble with BIOS setup so I guess I can force POWER OFF on
>  switch and then at next start PS/2 keyboard should work again..?
>
>     Regards, Rauno Ollila
>
>
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