Quote:
amigadave wrote:
No one wants to answer my questions?
q1 & q2:
my thoughts: it's standart pcd design. I think that is cheaper to develop one common (universal) industral design of pcb for all variants than to develop some different pcb designs for each variant
q3:
Quote:
amigadave wrote:
If bplan intentionally left out the required number of memory traces...
Quote:
Neko wrote:
The traces simply do not support this configuration. You need to add resistors etc. in places you can't get to
q4:
page: http://www.ppcnux.de/?q=node/6614
video: http://images.pegasosppc.com/movies/ftf/efika_divx.avi
so, for me list of problems looks something like that:
a: variant with chip-add
Quote:
Neko wrote:
The traces simply do not support this configuration. You need to add resistors etc. in places you can't get to
1. to find mb pcb scheme
2. to add that resistors to "places you can't get to"
3. to make changes in closedsource firmware
b: variant with chip-replacement
Quote:
Neko wrote:
You may be able to solder on new chips to support more RAM using the top solder pads (after desoldering the old ones) but finding ones with the correct specifications that are verified to work with the MPC5200B, and then hacking the firmware to do it
1. to find proper gigabit chips with correct specification
2. to make changes in closedsource firmware
