yeah baby yeah!!
running at 16MB now!!!
since the CFE of the se505v2 seems to be set to 4x16 and doesn't detect my 8x16 fully i thought: why not use the second RAM-place on the board.
so i soldered the original 4x16 on the second RAM spot, inserted a few 0Ohm bridges to connect the Adress-lines (there should be 33Ohm resistors according to the first RAM-spot. but they are REALY small. not the SMD-resistors with the resistance printed on it. even smaller. tried to solder somme 33Ohm from an old graphics card... but they were way too big. so i simply shortened them to connect the adress-pins).
and here i am, my Router has 16MB ram now and is finaly usable (8MB isn't much...)!!
ok, it was not as straightforward as it sounds... i soldered and unsoldered each of the RAM-chips at least twice, so i am realy used to soldering these small bastards now... but finaly it works!
if anyone wants to do this to his se505v2 too: don't solder a capacitor on C319, leave it open. i soldered one and it didn't boot anymore... unsoldered it, and it worked.
TODO to get from 8MB to 16MB on the se505v2:
and solder a 4Mx16 sdram on the second RAM-spot.
afte booting the router you should have 16MB ! :-)
nvram set sdram_ncdl=0
to let the cfe reconfigure this value.
this is all you have to do! no change in sdram_init, it is ignored by the CFE on this router.
build a cfe that supports 8Mx16rams, so i can go to 32MB RAM with two 16MB 8Mx16 would be nice...
anyone used to this and willing to help me?
(Last edited by axc27 on 2 Sep 2006, 13:19)