Return to BSD News archive
Newsgroups: comp.os.386bsd.questions Path: sserve!newshost.anu.edu.au!munnari.oz.au!news.Hawaii.Edu!ames!elroy.jpl.nasa.gov!usc!howland.reston.ans.net!xlink.net!subnet.sub.net!phoenix.ppc.sub.org!rumtifsl.ruessel.sub.org!strix.ruessel.sub.org!ura From: ura@strix.ruessel.sub.org (Ulf Andrick) Subject: Re: AMD and Cyrix 486DX: any experience? Organization: Nocturnal Unix System in Kaiserslautern, Germany References: <2glc3n$ljl@golem.wcc.govt.nz> Message-ID: <CJFyDJ.4Dw@strix.ruessel.sub.org> X-Newsreader: TIN [version 1.1 PL8] Date: Tue, 11 Jan 1994 01:19:53 GMT Lines: 27 Chuck Zheng (zheng@golem.wcc.govt.nz) wrote: : In article <2gdrs3$1qb@news.service.uci.edu>, : bob prohaska <rprohask@uci.edu> wrote: : > Hi all, : > : > Does anybody have experience with either AMD or Cyrix 486DX cpu's? : I have bought a 486 PC just before Xmas. It started with a Cyrix : 486DLC-40 (do not think they have a DX chip). It is very fast (Winsock : marks 43MHz) but it does not boot NetBSD from harddirve, although it : boots from floppy alright. My system board is OPTi495SLC (with 2 : VL-Bus slots), plus a Multi I/O controller card and Conner CP30344 340MB : IDE disk. I took the machine back to the vendor, they tried a AMD : 486DX-40 and Intel 486DX-33MHz and both worked fine. In the end I got : myself a 486SX-25 and it works. The vendor told me they had quite a few : problems with Cyrix chips - it works fine with DOS and Windows, but : could go strange even just putting on some network cards. I tried to run 386bsd on a Cyrix 486CX40 + coprocessor, but the coprocessor could not be accessed. It was replaced with an AMD 486DX40 and the system runs fine since. Dhrystone indicates a performance 2.3 times better than on the Am386DX40 I had before. -- Ulf Andrick ura@strix.ruessel.sub.org