[P1] Logic board, estimates of probability of success of

[Paul Bernhardt]

Well, I've resolved it.

It was diagnosed as logic board failure, though the machine tended to 
boot for the technician. It will boot in target disk mode according to 
him, also. I was quoted $475 for part and $60 to install. $530. 
Information here was very high probability of the fix not succeeding 
long term. Information on another discussion group (not iBook specific) 
was it had a high, but far from perfect (about 85%) probability of 
succeeding. My own reading had me feeling a bit lower than 85%, but not 
as pessimistic. I decided that my best estimate of the fix succeeding 
was 50%. Not great.

So, I decided to spring for a new G4 iBook. Purchased it yesterday. 12 
inch, 800 Mhz, lovely machine. $999 at educational discount. That price 
seemed to be the best solution given an estimate of only 50% for the 
fix succeeding on the old machine.

Over the next few days I'll be connecting the old machine to the new 
one to offload various files.

Paul

On Jan 9, 2004, at 5:09 PM, James Feathers wrote:

>
> I've worked in Quality for several companies over the last...almost 
> twenty years now (that makes me feel old!), and have to say that this 
> sort of problem usually comes in batches. Switching suppliers, or even 
> having the same supplier change their manufacturing process can be the 
> cause. Unfortunately, using refurbished parts for repairs can 
> perpetuate it--which might have something to do with the disturbing 
> trend of the same owners seeing failure after failure.