Itchy send finger syndrome strikes again. Since you're not getting a start up chime, but were when you found this machine, I'd say your problems are in one (or more) of five areas: RAM, VRAM, NuBus cards, the monitor you have attached to your 840, or the logic board settings.
You can use any 72-pin SIMMs, EDO or FPM, from 8 to 32 MB, provided they are 60 ns or faster and are CAS-before-RAS. As with all slots on the Q840 logic board, it is not a simple matter to get the RAM seated properly. There is 1 MB of VRAM soldered to the logic board. You can add 4 256 KB VRAM SIMMs, 80 ns or faster, for a total of 2 MB. When you added VRAM SIMMs, they were the correct ones for your 840, yes? And, when you removed them, you pulled all four? You've never mentioned having any NuBus cards (including things like the various Video Spigots). You don't have any connected, do you? Although the Q840 is supposed to support all Apple monitors, I'm not so sure about 14-inch RGBs. I'd say a properly adapted VGA monitor is a better bet. You may want to try leaving the monitor powered off when you power up your 840 and see if you get a chime, that way. If so, wait 20 or 30 seconds and then turn on the monitor. Lastly, you said that you'd reset the logic board by leaving it without PRAM battery for at least 10 minutes and then put in a known good battery delivering 3.2 or more volts. Did you do this before or after your last change to the RAM/VRAM configuration? If before, reset it again, then start up with the monitor off and listen for a chime. If no chime, try one more time with the monitor on. On Tuesday, January 14, 2003, at 12:03 AM, James S Jones wrote: > Going back to your original post on this machine, you said that you'd > ". . . decided to do a few upgrades on it by adding memory and filling > the vram slots. Since then I can not get it to start up again. When I > try to start it, I get no chime, just a blank gray screen with the > cursor in the upper left hand corner. Here's a list of what I've tried > to remedy the problem with no results: I removed all of the upgrades I > added except for one simm that I know is > good. No go." -- 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
