According to the Guide, the p/n's should either be 110091-011 and 110092-011 (for ROM Revision H.6) or 110091-0012 and 110092-012 ( for Revision H.7). Bob -----Original Message----- From: Ethan Dicks [mailto:erd_6502@yahoo.com] Sent: Thursday, January 02, 2003 10:09 AM To: cctalk(a)classiccmp.org Subject: Compaq 286/SLT (was RE: Anyone have any experience replacing a Dallas 1287 with a 12887?) <snip> My ROMs have stickers with p/n 110091-011 and 110091-012, (c) 1988. -ethan