In the rare event it starts up, does it chime? And when running - does it work without issue/crashing? My 12" 867 has faulty 128MB onboard RAM which displayed similar symptoms before the RAM failed entirely. It now refuses to detect the onboard RAM, and "fails" its startup routine which results in no chime to express this fact. Apple's system profiler states the same.
The funny thing is - with 1GB stick of RAM installed, it works fine and has been used by my wife everyday for a couple of years now. When this issue occurred, I do recall reading some forum links whic reported similar issues with premature RAM failure in 867Mhz models, and how the RAM could be disabled by pulling up one of the legs of the onboard RAM.
I appreciate this may not be the issue, but thought it worth mentioning. The good thing about the 12" Powerbooks is that I believe motherboards are interchangable, so if you ever come across another cheap 1/1.2/1.5Ghz model you should be able to switch things around.
JB
The funny thing is - with 1GB stick of RAM installed, it works fine and has been used by my wife everyday for a couple of years now. When this issue occurred, I do recall reading some forum links whic reported similar issues with premature RAM failure in 867Mhz models, and how the RAM could be disabled by pulling up one of the legs of the onboard RAM.
I appreciate this may not be the issue, but thought it worth mentioning. The good thing about the 12" Powerbooks is that I believe motherboards are interchangable, so if you ever come across another cheap 1/1.2/1.5Ghz model you should be able to switch things around.
JB