> A little background. I have been using my S 900 with a 200Mhx cpu for a > couple of years now. I bought another last week with the E100 and XLR8 > G4 > card from some folks who have no idea about it. So I have no background > on > it. I ran Techtool 3 and it reported a SCSI problem and then promptly > crashed. Thinking that I could eliminate any concerns about a SCSI > chip/motherboard problem, I reinstalled all the goodies into my tried > and > true S 900. The problems remained, and so I installed a fresh OS. I've > done > the other measures now as suggested and still the problem remains.
You could try swapping out the RAM for DIMMs that you know to be good from your other machine. You could also quadruple-check the termination of the SCSI chain, and remove all drives other than the boot volume to simplify troubleshooting. Try swapping out the SCSI cable from your other 900 as well. For that matter, might be a good idea to move RAM, hard drive and 604 card from your working 900 into the problematic one, then work with process of elimination if all that renders it stable. I know you need to disable the motherboard cache via software when the G4 is installed. I believe they say Speculative Processing is bad on Old World machines, but I use it with my PowerLogix G3 under OS X, so who can say? Same with Write-Thru Cache, I believe; supposedly bad but works for me. Also, check the bus speed and multiplier settings of the G4 card. My machine exhibits seemingly random instability with the bus speed set above 55mhz, but the actual speed it will tolerate varies from motherboard to motherboard. For testing purposes, you should probably go with painfully low numbers just to rule it out, then start bringing the speeds up once the system is stable, and back it off a notch once it becomes unstable again. Or you could do the sensible thing, and wait for Jeff Walther to notice this thread. He'll call you at home and ask you to hold the phone up to the S-900 so he can give it a stern talking to, which oughta fix everything. > Funny you should suspect a conflict between the E100 card and the G4 > upgrade > as that is where I thought the problem may lay. The version for the E100 > driver is 1.32. I've taken the ethernet extension out (I did try with > it in > but made no difference) - I don't need the ethernet port since the on > board > one works fine. You won't get the 100baseT ethernet working unless you drop down to OS 7.6 or lower, or maybe 8.1 was the most recent where that worked? So the E-100 is only good for fast SCSI in most cases, and even that goes away once you get to OS X. *sob* But all that aside, based on the issue of glitching out on a file save, my money's on either bad RAM or SCSI termination issues. Anybody giving odds? --Bryan -- 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/> Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
