>Just what is this "ultra 160" stuff anyway? >Is this something new? >How fast can we get our 7500s etc. to perform with these drives? >Are they good for video editing? >Anybody with experience & advice?
According to MacGurus SCSI Pages of Doom, and in contrary to what the other responses to your question have been, Ultra160 is *not* the best option on your PowerMac 7500. For you, dual-channel Ultra2 Wide (80MB/sec) is about the max. This is because the PM 7500 only has a 32-bit PCI bus, whereas true Ultra160 performance requires a 64-bit PCI bus only found on New World Macs (and even then, only one of the PCI slots is usually 64-bit, the bus mastering one). The complete story is a bit unclear on the MacGurus site, so if someone would care to correct me or fill us in with the details, that would be great. In the case of my uber-fast SCSI experiment, the drives (two new as in never opened 4.3 GB Ultra Wide 7200 RPM Seagate Barracudas) arrived yesterday but I'm still waiting on the 80- to 68-pin adapters. I have everything else ready to go, including SoftRAID 2.2.2 and MacBench 5.0. I'll fill everyone in when I get the adapters (hopefully tomorrow) and everything up and running. Pray for me that the adapters are high enough quality not to cause problems --- small native 68-pin drives were just too hard to come by. -- --Chris PM 7500/604e 200Mhz 4 gig SCSI 256 megs OS 8.6 (This machine rocks!) -- PCI-PowerMacs is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Refurbished Drives | -- Sonnet & PowerLogix Upgrades - start at $169 | & CDRWs on Sale! | Support Low End Mac <http://lowendmac.com/lists/support.html> PCI-PowerMacs list info: <http://lowendmac.com/lists/pci-powermacs.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/pci-powermacs%40mail.maclaunch.com/> Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
