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Xref: sserve comp.unix.sys5.r3:1978 comp.unix.pc-clone.32bit:6562 biz.sco.general:14672 comp.unix.sys5.r4:7564 comp.unix.unixware:6579 comp.os.linux.misc:17357 comp.os.386bsd.misc:2593 comp.periphs.scsi:21612 comp.sys.ibm.pc.hardware.storage:6711 Path: sserve!newshost.anu.edu.au!harbinger.cc.monash.edu.au!msuinfo!agate!howland.reston.ans.net!europa.eng.gtefsd.com!MathWorks.Com!yeshua.marcam.com!charnel.ecst.csuchico.edu!xmission!u.cc.utah.edu!cs.weber.edu!terry From: terry@cs.weber.edu (Terry Lambert) Newsgroups: comp.unix.sys5.r3,comp.unix.pc-clone.32bit,biz.sco.general,comp.unix.sys5.r4,comp.unix.unixware,comp.os.linux.misc,comp.os.386bsd.misc,comp.periphs.scsi,comp.sys.ibm.pc.hardware.storage Subject: Re: Anyone using a BusLogic 747S with multiple disk drives ? Date: 19 Jun 1994 09:27:53 GMT Organization: Weber State University, Ogden, UT Lines: 28 Message-ID: <2u132p$1t4@u.cc.utah.edu> References: <CrDswJ.7qE@cti-software.nl> <2tl4b0$3e0@rand.org> NNTP-Posting-Host: cs.weber.edu In article <2tl4b0$3e0@rand.org> edhall@nntp.rand.org (Ed Hall) writes: ] : 5) What kind of system/motherboard are you using ] ] Nice SuperEISA ver.1 It is (or should be) well known that NiCE EISA motherboards do not support bus mastering DMAs in excess of 16M, just like ISA chip sets. It may be that the EISA detection is not taking this into account, probably because NiCE wasn't willing to put the string "FAKE EISA" or some similar identifier at some memory location for marketing reasons. 8-). Drop down to 16M (potentially less, if the 384k hole below 1M is being back-filled) and the problem should go away. If you want to run more memory, ask for a hack to force the use of bounce-buffers on EISA (not likely to happen in your lifetime) or buy only motherboards with known working chipsets (I'm partial to SiS for EISA, but that's just me -- and my very, very fast machine... Sis has the fastest Gate A20 I've ever seen, too). Terry Lambert terry@cs.weber.edu --- Any opinions in this posting are my own and not those of my present or previous employers.