>Date: Sun, 6 Oct 2002 20:35:28 -0400 >From: John McGilvary <[EMAIL PROTECTED]>
>Well, unless someone can tell me why I am wrong, I have concluded the >machine has a bad ADB port. Anyone have any diagnostic software? >I have changed keyboards, mice, (using known GOOD ones) I have used the >mouse and keyboards from this machine on other Macs and they work. >I have trashed mouse preferences, even replaced the hard disk with an >8.6 disk I have that works in another 9500. >No mouse movement from the upper left corner. >Does this cover everything or is there someplace else I can look before >I junk the motherboard. >If not, I am now stuck with the 3dfx card I cannot use, and a 9500 >board that does not work. >Oh well, sometimes you are the windshield, sometimes you are the bug. If the ADB port is defective, the problem is 99% likely to be in the CUDA chip. This is a little SOIC package chip with 28 pins labeled 341S0788. It's a custom Apple chip so you can't buy a new one, but Apple has used this chip at least as far back as the NuBus PowerMacs and possibly even on some of the Quadras. They're easy enough to salvage off of another board and replace with some soldering. I usually steal them off of some 7200 boards I keep around as parts boards. I'd offer to do it for you for a small fee, but the shipping of the board round trip would cost $20 alone, which usually makes it not worthwhile. Jeff Walther -- PCI-PowerMacs is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Refurbished Drives | -- Sonnet & PowerLogix Upgrades - start at $169 | & CDRWs on Sale! | Support Low End Mac <http://lowendmac.com/lists/support.html> PCI-PowerMacs list info: <http://lowendmac.com/lists/pci-powermacs.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/pci-powermacs%40mail.maclaunch.com/> Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
