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Newsgroups: comp.os.386bsd.questions Path: sserve!newshost.anu.edu.au!munnari.oz.au!ihnp4.ucsd.edu!agate!tfs.com!bill From: bill@nntp.tfs.com (William Robbins) Subject: Re: * [FreeBSD] - new motherboard woes Message-ID: <D1zIG6.2pw@tfs.com> Sender: usenet@tfs.com (Mr. News) Organization: TRW Financial Systems, Oakland, CA X-Newsreader: TIN [version 1.2 PL2] References: <3eh9qa$1ie@usenet.ucs.indiana.edu> <60.10450.5307.0N1C7481@canrem.com> Date: Fri, 6 Jan 1995 12:52:53 GMT Lines: 27 Barnaby Ng (barnaby.ng@canrem.com) wrote: : > However, if I try and boot FreeBSD with the cache enabled, it crashes : > just at the beginning of the boot sequence (right after you hit : > return, before the memory test) and complains "page fault in kernal : > mode". Side note - the cache makes OS/2 spew as well, although : Sounds like a hardware problem. You could try the followings:- : 1) Check to see if all your DRAMs are of the same speed and type. : 2) Check if all your cache RAMS (except the tag ram) are of the same : speed. The tag ram should be faster than other cache rams. : 3) Check the doc of your motherborad for recommended page mode for your : CMOS. : 4) Check for recommended cache burst read/write cycle (CMOS). : 5) Check DRAM wait state (CMOS). : Your chipsets might have other settings relating to cache and memory. : Consult the doc. Hope this helps. My experience with this on several OS's has been to uncache the first 64k, 512k or 1M in that order. If it still crashes, disable it and go on with your life. -- -- Bill Robbins Twiddler Extraordinaire