🚀 go-pugleaf

Willy D <willy.d@planetinternet.be> wrote in article
<6uh5nc$lha$1@antwerpen.planetinternet.be>...
> 
> Ron Reaugh heeft geschreven in bericht
<01bde80e$1e734960$d967490c@p133>...
> >
> >
> >> >What is the read burst rate and CPU usage reported by HDTach?
> >> >http://tcdlabs.simplenet.com/hdtach.htm
> >>
> >> Results of HDTach:
> >>
> >> MAXTOR : Read burst: 12.6 mbps
> >>                     Random access time 16.7 ms
> >>                     CPU usage: 15.2 %
> >
> >DMA mode 2.
> >
> >> FIREBALL : : Read burst: 7.4 mbps
> >>                         Random access time 17.1ms
> >>                         CPU usage: 51.4 %
> >
> >Probably PIO4 or PIO 3.
> >
> >Try the cabling experiment I previously suggested.
> 
> -------------------------------------------------------------------------
> Problem solved !
> 
> Double cause:
> 
> 1. The clock frequency should be 66MHz but was set to 75MHz. This
prevented
> the
> Maxtor to use UDMA (this cable was not to long). After resetting the
clock
> to 66MHz and disabling the secondary controller, it worked fine with both
> the BIOS and the DMA-checkbox in WIN98 enabled.
> 
> 2. The EIDE-cable to the secondary controller was really to long.
Rearrange
> some
> things in the computer let me use a shorter one: no problems anymore.
> 
> Nevertheless I will buy the special UDMA-cables, I believe it will be
more
> reliable.
> 
> New results of HDTach for the MAXTOR:
> Read burst: 16.6 mbps


That's still DMA mode 2.  So the problem still isn't solved.  It should be
>=25MB/sec. for UDMA mode.
> Random access time 23.7 ms
> CPU usage: 17.1 %
> 
> 
> Thanks !
> 
> 
>