From owner-freebsd-chat Thu Jun 20 23:31:31 1996 Return-Path: owner-chat Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id XAA25938 for chat-outgoing; Thu, 20 Jun 1996 23:31:31 -0700 (PDT) Received: from portal.spi.net ([199.238.225.153]) by freefall.freebsd.org (8.7.5/8.7.3) with SMTP id XAA25914; Thu, 20 Jun 1996 23:31:25 -0700 (PDT) Received: from MindBender.HeadCandy.com (root@MindBender.HeadCandy.com [199.238.225.168]) by portal.spi.net (8.6.12/8.6.9) with ESMTP id XAA01051; Thu, 20 Jun 1996 23:31:20 -0700 Received: from localhost.HeadCandy.com (michaelv@localhost.HeadCandy.com [127.0.0.1]) by MindBender.HeadCandy.com (8.7.5/8.6.9) with SMTP id XAA01022; Thu, 20 Jun 1996 23:31:18 -0700 (PDT) Message-Id: <199606210631.XAA01022@MindBender.HeadCandy.com> X-Authentication-Warning: MindBender.HeadCandy.com: Host michaelv@localhost.HeadCandy.com [127.0.0.1] didn't use HELO protocol To: Howard Lew cc: Bill/Carolyn Pechter , freebsd-hardware@freefall.freebsd.org, freebsd-chat@freefall.freebsd.org Subject: Re: Cyrix and AMD chips In-reply-to: Your message of Thu, 20 Jun 96 13:33:32 -0700. Date: Thu, 20 Jun 1996 23:31:17 -0700 From: "Michael L. VanLoon -- HeadCandy.com" Sender: owner-chat@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk >I believe the 486DX2/66 is a 5V CPU. I believe the 5x86s are all 3 volt, >so there's a potential problem. Need an adapter for that. Might also >need to flash the bios. I believe we've already covered that ground. At least implicitely. Just in case it was lost on anyone: all the current 486s (that I know of), including 5x86s, that are faster than 66MHz, are 3-volt CPUs. AMD made some 5-volt 486DX2 80MHz chips (including mine) for a short while, but switched those to 3-volts also. If you have an older motherboard, you need a 5-volt to 3-volt regulator module that sits between your CPU and the CPU socket. These generally cost $40-$50 from what I've seen. If you stick with a 66MHz or slower part, you probably won't run into this problem. ----------------------------------------------------------------------------- Michael L. VanLoon michaelv@HeadCandy.com --< Free your mind and your machine -- NetBSD free un*x >-- NetBSD working ports: 386+PC, Mac 68k, Amiga, Atari 68k, HP300, Sun3, Sun4/4c/4m, DEC MIPS, DEC Alpha, PC532, VAX, MVME68k, arm32... NetBSD ports in progress: PICA, others... Roll your own Internet access -- Seattle People's Internet cooperative. If you're in the Seattle area, ask me how. -----------------------------------------------------------------------------