On Jan 21, 2009, at 10:49 AM, Kris Tilford wrote:
>> The RAM is easy to find as it is standard PC RAM from back in the 386 >> and 486 days, when every PC supported parity, but the parity could be >> turned off in many PCs. > > No. The HP parity RAM was different in the LJ4/4M. Normal PC parity > RAM (9 chip RAM) could be used, but it required modification by > soldering. The PS card in my 4M is: C2080-60001 Rev. B The four ROM chips are: 1818-5437 1818-5438 1818-5439 1818-5440 Copyright: © 1992 HP-Boise © 1984-1992 Adobe © 1981 Linotype AG No RAM on the PS card itself. Of course, the printer has RAM. 2 MB, I think. Added RAM cards: Three standard 4 MB with parity cards NEC MC-421000A36BH-80. Eight 424400 chips (data) and four 421000 chips (parity). All 80 ns. I believe the RAM cards were "pulls" from surplus MYLEX DAC960PL RAID cards. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed Low End Mac's G3-5 List, a group for those using G3, G4, and G5 desktop Macs - with a particular focus on Power Macs. The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/g3-5-list?hl=en Low End Mac RSS feed at feed://lowendmac.com/feed.xml -~----------~----~----~----~------~----~------~--~---
