Hi all, I'm looking for details on a 4MByte QBus memory module made my National Semiconductor. It doesn't have an NSxxx model number anywhere on it, but is simply labeled 980110014-211. I've managed to work out what many of the jumpers do, but a lot of them go straight into a couple of PALs which I'd rather not need to reverse engineer. A manual of some description would be nice although, failing that, even a summary of the jumpers' functions would be great. Even a photo of a similar module with a description of how it's set up would help at this stage. The main thing I need right now is how to configure the range of addresses the module will respond to. It works fine on one machine which has some memory on the CPU board, but another won't boot saying that there's no memory at address zero. Cheers, -- Steve Maddison http://www.cosam.org/