FWIW, I bought my Peg2 with 2 x 512Mb, but it wouldn't accept both DDRs but only one in MOS 1.4 or 1.4.2, leaving me with 512Mb in the machine and 512Mb on the shelf.
With the bplan OpenFirmWare update using both DDRs at the same time works, giving 1Gb of memory.
Wouter Lamee
mailto:wouter@wouterlamee.nl
http://www.wouterlamee.nl