05-15-2016 11:18 AM
I have been using a T60 (1951-A31) with a full docking station (2505) with both video ports in use. It worked fine.
I have since upgraded to a T400 (6474-U11). Physically it fits and powers up with no issue. Originally it contained two 1Gb So-Dimm sticks of ram (PC3-8500s). I have since tried to upgrade the ram to a stick of 2Gb and a stick of 4Gb (PC3-10600). If I leave a single stick in place I have no problems. when I try to include 2 sticks of the new ram, I get a horizontal "shredding" effect on the back ground, the icons, and any windows I open. I atempted to use one new and one original memory stick but ended up with the same problem.
I have tried using a second identical docking station, but with the same results. I can confirm that the T60 has no issues with either docking station. The T400, by itself, with a monitor connected to the VGA port on the side has no video issues. I have done a remove/reinstall of the video drivers.
I am one version back on the BIOS with no way of upgrading until I get a replacement battery.
Would anyone have a suggestion on how to clean this up, other than sticking to a single stick of ram?