Date: Mon, 15 Sep 1997 20:15:19 -0700 (PDT) From: "Rodney W. Grimes" <rgrimes@GndRsh.aac.dev.com> To: drussell@saturn-tech.com (Doug Russell) Cc: maddox@p-1.Eng.Sun.COM, beckmann@nacamar.net, hardware@FreeBSD.ORG Subject: Re: Parity trouble with Asus mainboard Message-ID: <199709160315.UAA05832@GndRsh.aac.dev.com> In-Reply-To: <Pine.BSF.3.95.970915124530.1820C-100000@hobbes.saturn-tech.com> from Doug Russell at "Sep 15, 97 12:47:13 pm"
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> > > Are you sure these are true parity SIMMs? Some cheap SIMMs use "logic > > parity", which just fakes a parity bit for older MBs that require it. > > These will not work with ECC, and should be avoided in any case. > > Also, you describe these SIMMs as 2 x 32, 8 x 32 and so forth. In > > standard nomenclature, the "32" is the width of the SIMM, i.e., 32 bits. > > Parity SIMMs are 2 x 36, etc. > > > > Admittedly, this doesn't explain why the Gigabyte board worked, unless > > somehow the ECC was disabled behind your back. > > It is quite possible that the Gigabyte automatically disables ECC if you > don't actually have parity memory installed as an "idiot-proof" type > feature. I honestly don't know for sure, though. > Awards standard BIOS does this, Gigabyte uses Awards BIOS with very few modifications. -- Rod Grimes rgrimes@gndrsh.aac.dev.com Accurate Automation, Inc. Reliable computers for FreeBSD
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