From owner-freebsd-questions Thu Oct 23 07:05:56 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.7/8.8.7) id HAA28085 for questions-outgoing; Thu, 23 Oct 1997 07:05:56 -0700 (PDT) (envelope-from owner-freebsd-questions) Received: from plains.NoDak.edu (tinguely@plains.NoDak.edu [134.129.111.64]) by hub.freebsd.org (8.8.7/8.8.7) with ESMTP id HAA28072 for ; Thu, 23 Oct 1997 07:05:50 -0700 (PDT) (envelope-from tinguely@plains.NoDak.edu) Received: (from tinguely@localhost) by plains.NoDak.edu (8.8.7/8.8.7) id JAA01001; Thu, 23 Oct 1997 09:05:36 -0500 (CDT) Date: Thu, 23 Oct 1997 09:05:36 -0500 (CDT) From: Mark Tinguely Message-Id: <199710231405.JAA01001@plains.NoDak.edu> To: dg@root.com Subject: Re: 2.2.5-RELEASE > 64Megabyte generates kernel panic Cc: acton@vn.opentext.com, freebsd-questions@FreeBSD.ORG Sender: owner-freebsd-questions@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk >>ASUS P2L97 AGP Motherboard with 128Mbytes of 10ns SDRAM DIMMS in 64MB modules >>266MHz Pentium II > > I had a variety of problems with using 2 SDRAM DIMMs here and I eventually > had to replace them with regular SIMMs (the motherboard I had supported both). > The problems were similar to what you are seeing, although the exact fairly > was random. I've heard that SDRAM compatibility is a big problem, and because > of this, many vendors have special (no)return policies specifically for SDRAM. alt.comp.periphs.mainboard.asus has had long threads on SDRAM in the P2L97[S]. According to the articles, typically, a single SDRAM DIMM does not generate the problem. Also,some brands of SDRAM are to be avoided. A good SDRAM DIMM should have an EEPROM; the EEPROM tells the motherboard what type of DIMM is installed. Daniel Bucher recommended: "Micron MT16LSDT464AG-66CL2, which is a 2-row-8-Chip S-DIMM, 256 Byte EEPROM installed with SPD-Information according to the actual specification. It's the best available yet!" Finally, some suggest move the second DIMM out of the middle slot on the P2L97. --mark.