Re: Help Identify this SCSI card.

[Wayne Stewart <waynes@intergate.bc.ca>]

That's a standard Apple SCSI card not a Hi-Speed SCSI card. The two
cards are a totally different design so there is no upgrade. Which revision

it is is dictated by the EPROM on it. You usually tell revisions apart by
looking at the sticker on the EPROM but they often fell off. It might be a
good
idea to put a bit of tape over the clear window on it as exposure to
ultraviolet
light can erase the chip. Rev C is the only one compatible with GSOS but
they're all upgradeable to Rev C with an EPROM swap. If you can boot
without crashing with the card in your system you likely have a Rev C, if
you
can run GSOS from it it's definitely a Rev C.
If you don't have a driver then all you'll see is one partition. Your
system
disks will have the correct driver. Installing the driver will speed things
up
a bit but compared to a RamFast it's extremely slow. Aside from the driver,

the only thing that'll speed it up is an accelerator. Of course that'd
speed
up the RamFast too. Given the huge speed difference, if you have a Ramfast
I can't see using the Apple card except in special circumstances.

     Wayne


bobryan9@my-deja.com wrote:

> <snip>
> Is this just a SCSI, or HS SCSI?  (high speed)  What Revision is it?  If
> it is just SCSI, can I upgrade to HS by ROM replacement?  Can I get any
> performance increase by upgrading the ROM or other chips?  With my Zip
> disk that  I formatted with my RAMFAST, I can only see the first
> partition on the drive from the GS finder.  Do I need a driver file?
> This SCSI card seems very slow to my old RAMFast.
>
> Thanks alot
>
> Bob
> bobryan@my-deja.com   (dejanews.com changed to deja.com)
>
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