Date: Wed, 16 Dec 1998 23:57:01 -0800 From: David Greenman <dg@root.com> To: Sam Pigg <sam@redbacknetworks.com> Cc: hackers@FreeBSD.ORG Subject: Re: tyan S1836DLUAN >512Mb problems Message-ID: <199812170757.XAA19359@root.com> In-Reply-To: Your message of "Wed, 16 Dec 1998 23:45:47 PST." <199812170745.XAA21794@phred.redbacknetworks.com>
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> >>> Trying to use 1 gig of memory on a tyan S1836DLUAN (dual 450 PII's) >>> running 3.0-RELEASE, keep having problems with the system freezing up, >>> rebooting, compiles failing due to signal 11's etc. If I decrease the >>> memory to 512 megs (I'm using those weird micron 256meg simms btw) >>> everything works fine. Tyan claims this motherboard can support up to >>> '1GB SPD SDRAM or SDRAM+ECC in addition to the new 100MHz >>> SDRAMs' >>> >>> This motherboard uses the 440GX chipset, but another system with >>> a tyan S1832DL (440BX chipset) suffers from the same symptoms when >>> >512 megs of ram are installed. >> >>The problem is not with the motherboard. Most of the mother boards that >>support SMP PII's have the same problem. I was unable to locate where in >>the configs the problem comes from though. I was testing dual PII 400 >>when they were first avalible from Compaq with 1.0 gig of 256meg dimms. >>They are recognized fine by the bios but FreeBSD won't work with it. I >>tested NT, Novell, and Sco all of which work although no where near as >>well and the system with 512meg and SMP FreeBSD. >> >>Rob. > > >I've upgraded the board bios, changed to a new memory vendor, etc etc. >Still have exactly the same symptoms, and from what rob said it would >seem this problem is specific to freebsd, and not any particular motherboard. > >Is anyone actually running a freebsd machine with more than 512 megs of >memory? Anyone have a clue at all as to why freebsd can't support >a gig of ram? windblows seems to have no problem (which doesnt help me much) Wcarchive is a Tyan 1662D (dual P6) motherboard with 1GB of RAM. Works great. Your problems sound like memory bus loading issues. -DG David Greenman Co-founder/Principal Architect, The FreeBSD Project To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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