There's no chance that you damaged the drive's ribbon cable when you installed it, is there? Josh On Jan 24, 2008, at 7:54 PM, Sis, Joseph C Jr 1LT NG NG NGB wrote: > I don't think that is the issue. The "official" maximum OS on my > Powerbook 2400c and my PowerMac 6500 are both 9.1. However 9.2.2 > installed via OS9 Helper works great on both of those machines. > > In this case the Duo is not even recognizing the hard drive during > startup. I can hear the HD spin up briefly and then immediately the > blinking disc icon comes up. I suspect the 2400 may require a > unique HD driver, because when I put a new HD in the 2400 it had to > be reformatted by the 2400 in order to work. > > I could reformat this HD in the 2300, but I am reluctant to do so. > Also, it may not be possible, as when I use Disk Tools on the floppy > - it cannot 'see' the internal 1.13G HD. > > Thanks, > > joe > > To: "A place to discuss Apple's sub-portable computers." > <duolist at listserver.themacintoshguy.com> > Message-ID: <738908.51633.qm at web50903.mail.re2.yahoo.com> > Content-Type: text/plain; charset="iso-8859-1" > > I researched and found that the 2300c can only run OS 9.1 or lower. > That may be your problem. Here is the website I found the > information at: http://www.danpalka.net/powerbookduo/profiles/duo2300c.html > > Art in Silicon Valley > > _______________________________________________ > DuoList mailing list > DuoList at listserver.themacintoshguy.com > http://listserver.themacintoshguy.com/mailman/listinfo/duolist