erd@romeo.cs.duke.edu (Ed Darken) (02/14/89)
Hi out there. We have some vanilla IBM PC-ATs that we would like to speed up. Currently their system clocks run at 6MHz. Can anybody tell me what we have to do to speed them up to various faster rates? We'd like to have 10MHz but will settle for 8MHz (for the time being). I'm assuming 12MHz is out of the question on these machines, but please inform me if I'm wrong. I believe we have 150ns RAM chips in these machines. Do we need to get, say, 120ns chips to keep up with any speed increase? Thanks, Ed Darken erd@romeo.cs.duke.edu
jmcvey@hpbsla.HP.COM (John_McVey) (02/16/89)
There was an old issue of BYTE that described the AT speedup. You can reliably speed a 6MHZ unit up to 8MHZ by replacing the 80286-6 with and 80286-8 and changing the crystal from 12MHZ to 16MHZ. I have done this to my machine with no problems. john mcvey jmcvey%hpbslq@hplabs.hp.com