I successfully soldered in the extra bank with very little difficulty, Perfoming a Ctrl-T mem test before connecting the RAS line which passed first time. I then connected the RAS line to RAS#1 on the SA. But Linux didn't detect the RAM, ( V394 of Hijack) re checked all pins with a meter and touch up a couple. But still no good, downgraded to hijack.mk2a-32mb.zImage and the modified 0e1000 image. got errors from the ramtest in the kernel, but they were the same with and without the RAS line connected!
More out of deperation than anything I removed the chips and tried a second set. Same result!

These chips were sent to the UK by Airmail is there any chance they were damaged in transit, I know a while back the US were nukeing post as a precaution. Is this still happening, or have i just f##ked up, should I order another set do you think?

On a plus note the player still works!!!