>I got a Kenwood 72x truex CD-ROM for x-mas. <twitch> wow.
>Now I just wish they made a scsi 72x drive.
Ditto. I have the Kenwood 72x IDE, but would love to move it over and free
an IRQ as well.
Quote:>The Kenwood is way faster than the Plextor. But I've heard it has
>problems reading CD-R's or CD-RW's or some such thing.
Yes, I have seen this as well. Some CD-Rs take way too long to be
recognized, and a few never are. I haven't benchmarked to confirm that the
read speed is also lower, but given the problems recognizing them I
suspect it is. If you also have a CD-RW drive in the system you can use it
for the troublesome CD-Rs, or you can do a few tests and stick with media
it likes. The speed is quite nice, and it's also nice to not have it spin
up like a jet engine! (unlike non-TrueX drives)
Quote:>The question: If I return the Kenwood and go all scsi, I would free up
>the 2 IRQ's devoted to controlling the current atapi cd rom (14 and
>15) and I'll be on a 40MB/sec. scsi bus. Would the system be faster on
Even a 72x drive only needs about 10MB/s, which is easily provided by
Ultra33 IDE. Freeing up IRQs won't do anything unless you need and can use
Quote:>If I keep the Kenwood I would have a fast and quiet cd rom but it
>would take up 2 IRQ's for one device. I've tried disabling them, every
>time I install windows, I disable the secondary ide channel and it
>still installs it in the device manager.
If you disable the channel in BIOS (and Windows still lists it), does it
still work (try the Kenwood on it)? If it works then it would seem that
the BIOS is screwing up. If it doesn't then you can probably disable it in
Windows as well (remove it from the device configuration) and free the
IRQ. Windows 95 used to see my disabled COM ports (when an internal modem
was used), and I had to remove it from the device listing or live with the
exclaimation point. You get a red circle with a line through it this way;
not much better, visually speaking ;-).
Quote:> I've also got a pretty crowded IRQ list. I'm now running WinMe and this
> new install put my modem, NIC, and USB controller on IRQ 10. Yet IRQ 9
> isn't used at all. What the hell?
What cards are in what slots? There are only 4 PCI IRQs total, no matter
how many slots you have. The AGP slot and USB also use these IRQs. Usually
the AGP shares with the first PCI slot (next to the AGP). The rest share
in different ways depending on the motherboard and how many slots you
have. It is quite possible to end up with two cards and USB all sharing.
Check your motherboard manual for more info, and rearrange (if possible)
to avoid sharing. You may find that you don't need the extra IRQs if
you're forced to share IRQs anyways. I use an ISA NIC instead of PCI just
to avoid sharing.
That said, the performance loss of sharing is probably not as important as
avoiding the flaky behavior of some cards that don't share well. If
everything works then you may not need to worry about the sharing.
Lastly, IRQ 9 is usually used for ACPI (power management). If you have an
ACPI computer it should be using IRQ 9 (and may show every card as using
IRQ 9). If you don't have an ACPI and are using APM instead then ignore
Quote:>Basically do I go scsi and free up irq's (I don't even know if 2 IRQ's
>will speed up anything). Or do I go speed demon kenwood cd rom 7-
>laser beam craziness and have a really quiet cd?
I think the key is the CD-R/RW support. If you can live with it the way
it is then I'd stay with the Kenwood. If you need it better then consider
another drive. I fall back to my DVD-RAM drive to read the flakey CD-Rs
myself, but it would be annoying if I used them more often.
One last thing: the Kenwood has no digital audio out (the connector is
there but it doens't work). Not a big deal to me, but it might be to
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