Ted Treen <[EMAIL PROTECTED]> wrote: >This (cable length restriction) was a deliberate "crippler" due to the >Apple firmware on their OEM'd ATTO ultra-SCSI card.
Forgive me if I'm a bit sceptical Apple would have deliberately crippled their cards. I rather imagine their (extra)cautious approach was based more on minimizing support costs. I also question the notion that the firmware would affect viable cable lengths. I suspect that's much more contingent on the card's hardware architecture than on any particular installed firmware. The UW spec at the time called for a pretty short overall cable run, IIRC something like 1 meter. Since the internal cable forms part of the total cable length, adding _any_ external device would surely put the total over the 'legal' length. Assuming Apple were/are responsible folks, they would of course have mentioned this to their customers. That said, I've got ~2 meters total of UW quality cabling attached to my Apple (now flashed to ATTO PSC firmware) card, distributed internally and external. Same Mac (9500/225/OS9 server running 24/7/365) has another contemporary UW card (FWB PCI UW JackHammer) to which is attached a trio of 47GB UW drives with over 2 meters of 160UW cable (internal cable used externally :-). Any SCSI setup, no matter the speed of the host, benefits from the highest quality cables available. Modern UW/LVD SCSI cables use twisted-pairs throughout, considerably extending potential maximum cable lengths while adding much enhanced reliability and data integrity. These type cables weren't available (AFAIK?) when the Apple-UW/ATTO-PSC cards were current technology, and I'm sure their usage would allow much greater maximum lengths than did the old original UW cables. dan k ................................. http://macdan.n3.net/ carracho://dankephoto.dhs.org:9700 hotline://dankephoto.dhs.org:9500 ................................. -- G-List is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Refurbished Drives | -- We have Apple Refurbished Monitors in stock! | & CDRWs on Sale! | Support Low End Mac <http://lowendmac.com/lists/support.html> G-List list info: <http://lowendmac.com/lists/g-list.shtml> --> AOL users, remove "mailto:"; Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive: <http://www.mail-archive.com/g-list%40mail.maclaunch.com/> Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
