> Message-ID: <[EMAIL PROTECTED]> > Date: Mon, 13 Jan 2003 15:38:42 -0800 (PST) > From: Mauricio Santana > Subject: Re: Quadra 840 AV???? > In-Reply-To: > > > my two cents: > > I have worked with several quadras and 1st nubus macs > mediting videos, specially 840s and 8100s. I > encountered this problem (gray screen with cursor > working)several times under two circumstances, the > SCSI chain was giving problems or the nubus cards were > giving problems. > > Under the SCSI problem, we just stripped off all disks > and let the mac with only the internal hard drive. It > should boot perfectly, the catch here, or the > assurance is that you see a cursor, hence the > motherboard is perfectly alright, if any internal > motherboard component is dead you should see a sad > mac, end of story. > This is the best news I've had in a long time. I was certain I'd irreparably damaged the motherboard somehow.
> The problem of Nancy I guess is > getting a copy of a bootable CD or a diskette. > Luckily, I was able to get a set of original Quadra 840AV system disks on eBay, both the CD and the floppy. I have tried booting off of them with no luck. > But if > the SCSI chain isn't properly installed (if the hard > disk has an invalid ID, like 0 or 8 with bad jumpers, > I'm currently working exclusively with the Quantum drive that was originally in the machine when I'd first gotten it and it was working. I haven't changed any of the jumper settings on this drive at all. >or the SCSI ribbon cable is faulty then, the mac simply won't boot beyond this screen. The other culprit were the nubus cards, case A. a perfectly working nubus video card (RADius) simply changed overnight into this problem, solution, changed the card to another slot (on the same machine) and voilá booting again... I know it´s nowhere near a scientific explanation, but I swear that was the solution, we know the nubus controller wasn't dead, because if that were true, a sad mac would have booted, or the card was wrong, because it functioned >properly. There weren't any Nubus cards in the machine when I got it. Since then I haven't tried adding any. I'd been planning on maxing the RAM and VRAM, and putting in the faster Barracuda drive. My plan was to get all of that straightened out and working well before adding the Spigot Pro AV card. Unfortunately, I never got that far before running into this problem. So to wrap it up, it sounds to me that the motherboard is perfectly alright, check the SCSI connections, and after you checked them, check them again, and then check them some more, and I would add after all else fails, try this: insert the nubus card in every slot >and try restarting it. Will do! Regards, and good lck, Nancy MAuricio Thank you! Nancy -- Quadlist is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Enter To Win A | -- Canon PowerShot Digital Cameras start at $299 | Free iBook! | Support Low End Mac <http://lowendmac.com/lists/support.html> Quadlist info: <http://lowendmac.com/lists/quadlist.shtml> The FAQ: <http://macfaq.org/> --> 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/quadlist%40mail.maclaunch.com/> Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
