Thanks Philip, for the reference doc. I asked Larry O'Connor at OWC about installing the PCI controller card. He said it is necessary to initialize any drives connected to the new controller card to avoid drive/data problems. I didn't realize that. I'm glad I asked. On Sep 29, 2005, at 5:15 AM, Philip J Robar wrote: > Performance wise, while you might be able to measure the difference > between the two controllers I doubt that you'll be able to notice > the difference - even with a new drive let alone a drive that > shipped with your machine. See this review for some numbers: > <http://www.gamepc.com/labs/print_content.asp? > id=ata133&MSC...B2A680C6E3843AA936461303A&cookie%5Ftest=1&cookie% > 5Ftest=1>. > > As to whether you can just move the drive and still expect it to > boot I don't know. I know that you can't do it on Sun's UNIX, > Solaris, without editing some configuration files. Maybe I'll give > it a try on one of my emergency boot drives tomorrow. > > Regards, Wayne Clodfelter wayne at troutnc.com