Louis>   start=0x100000
Louis> _
Louis> base !130 + ' -ee blpatch45e get-token drop execute ;

I am afraid of totally out of off-topic,
but I had serveral occasions with nvram, low-battery and 
power outage combination problems.

Assumption: low battery. power line is disconnected for more
than  minutes.

My StarMax 3000/240 3000/200, 3000/180 had problems either
(1) can not powerup (at all), no chime at all.
(2) Power is up but no OpenFirmware comes out.
(3) PRAM reset won't work
(4) MacOS unable to find boot-disk and screen stays black.

Almost all the time, disconnect powerline, remove battery, 
wait for days, will get everything back to work.
(I was not rellay waiting but just let them sit there :-)

Those machines will work fine even when battery is disconnected
in normal situation.

My suspect for my machines and Louis 2400 are:
 There is some condition to write malicious data on nvram.
 It may be recovered discharging electricity from the circuit.

For the Louis case, can you set use-nvramrc false ?
---
Makoto Fujiwara, 
Chiba, Japan, Narita Airport and Disneyland prefecture.