> when I look on ebay for a scsi drive, exactly what kind of connector would I look for?
The S900 has two internal SCSI channels, one that's internal only and a shared internal/external. From the SuperMac Insider S900 spec page <http://home.earthlink.net/~supermac_insider/support/s9ers.html>, the internal bus is a SCSI2 Fast/Narrow bus (20MB/sec max) while the internal/external has the same speed as the Apple 53C94 chipset SCSI (5MB/sec max). Needless to say, you're going to want to connect any drive you purchase to the internal Fast SCSI, which is the north-most SCSI connector on your logic board. Both buses use the same 50-pin ribbon cable (looks like a 40-pin IDE cable, except wider), so you're looking for a hard drive with a 50-pin connector that supports Fast SCSI. You can buy one with the 80-pin SCA2 or the 68-pin Wide connector, but you'll need an adapter. Be careful, though, because I've bought some of those drives from eBay that had non-standard sector sizes in their firmware (in my case, 520 bytes instead of 512). For some reason, I couldn't change the sector size using any of the software tools I could find, and had to buy an Adaptec SCSI controller for my PC and low-level format the drives. I tried low-level formatting with one PC's Diamond FirePort 20 and another's BusLogic, but for some reason only the Adaptec could fix the sectors. Those drives were IBM DCHS-04F (Ultrastar 2XP), and they work great now, but fixing them was a royal pain. Don't forget to terminate the drive at the end of your SCSI chain. Hope this helps. -Drew -- SuperMacs is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Refurbished Drives | Service & Replacement Parts [EMAIL PROTECTED] | & CDRWs on Sale! | Support Low End Mac <http://lowendmac.com/lists/support.html> SuperMacs list info: <http://lowendmac.com/supermacs/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/supermacs%40mail.maclaunch.com/> --------------------------------------------------------------- >The Think Different Store http://www.ThinkDifferentStore.com ---------------------------------------------------------------
