From mboxrd@z Thu Jan 1 00:00:00 1970 From: Date: Tue, 19 Aug 2008 20:18:26 -0000 Subject: No subject Message-ID: List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de metal of the board connector does not match the metal of the contact area on your SIMMs. I saw similar problems before with self-built SDRAM SIMMs. The only way to get it working reliably was to use a board connector with gold plated contacts and to use a SIMM with a gold plated PCB. I am not a chemist or physicist but I think else the two different materials after a while build up some strange alloy / oxide that ruins the contact. What's the plating of your board connector and what's the plating of the SIMM contact area? Regards Mark