Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!wuarchive!husc6!spdcc!merk!xylogics!cloud9!bu-cs!ngeow From: ngeow@bu-cs.BU.EDU (Yee Ngeow) Newsgroups: comp.sys.ibm.pc Subject: Re: What speed RAM for what speed motherboard? Message-ID: <43184@bu-cs.BU.EDU> Date: 21 Nov 89 22:40:44 GMT References: <[253f10f7:184.1]comp.sys.ibm.pc;1@nstar.UUCP> <11250106@hpldola.HP.COM> Reply-To: ngeow@cs.bu.edu (Yee Ngeow) Followup-To: comp.sys.ibm.pc Organization: Boston University Lines: 13 In article <11250106@hpldola.HP.COM> ppa@hpldola.HP.COM (Paul P. Austgen) writes: >100 ns are fine in At's 12 Mc. with 0 wait. If you go any faster, >you should use 80's. > Ahha! Depends on what machine you use. Some AT's allow 120 ns memory to be used at 12MHz, 0 wait. The logic on your motherboard has some say in what RAM speed to use. Also, on XT boards, you can pretty safely use slower RAMS. I have a 15 (Yes, ONE FIVE) MHz V20 board happily running using 100ns chips, zero wait, of course. Kwong