"jjw" <> wrote in message
news:m-ydnb5kU7VdlszcRVn-...
> "Solomon Kozanski" <> wrote in
message
> news:...
> >
> > "loohye" <> wrote in
message
> > news:413d0fab$...
> >> i just put in a new power supply, the kind thats universal and
will
> >> work for p4, etc. i didn't change anything else on my computer
but
> >> that now when it boots up it says "Primary IDE no 80 conductor
cable
> >> installed". i have never seen this message before, then it boots
to
> >> "Verifying DMA..." and stops booting. it worked fine with my old
> >> power supply....what could be the problem?
> >> ==============
> >> For this group's frequently asked questions, check out
> > www.CertFAQ.com
> >
> > the problem is you're too much of a cheapskate to buy the proper
> > cables.
> > --
> > Brought to you courtesy of Kozanski's Morgue & Grill
> >
>
> newer drives need what are called 80 pin cables instead of 40 pins
cables.
> I think the extra 40 pins are just grounds, but they are needed for
newer
> drives, I believe for drives that are ATA66 or faster. ususally
when u by a
> drive, it will come with an ide cable, and if it needs an 80 pin
cable, it
> will usually come with an 80 pin cable.
>
> jjw
actually the extra cables are intended to eat up the excess electrical
field and prevent inductive crosstalk (RF) which is common with high
frequency wiring and has a tendency to induce fields in just about
anything nearby with delocalized electrons (e.g., metal), which
explains why they're grounded. if you're gonna eat up induction,
nothing's better than 0V!
they probably would have been better off just using four or eight high
speed miniature coaxial wires, but since cost is a factor, i can say
they didn't do too bad of a job.
--
Brought to you courtesy of Kozanski's Morgue & Grill