Re: NVRAM reset and dead motherboard

2005-04-19 Thread Mikael Byström
Daniel Colwell said:

So...  Could running these instructions fry a motherboard? I don't know 
exactly what type of Powerbook his daughter has. I could find out if 
needed.

I don't think so, but sometimes a machine under this treatment can seem
dead for a couple of days, for reasons unknown to me. I think the Apple
shop *possibly* fooled him into thinking the problem was more serious
that it really was. Powerbooks may sometimes appear dead, when the backup
battery have been depleted as that, in some models at least, seem to be
connected to PMU control or closeby services.

A couple of friends had Apple South Africa tell them 2 machines ( a pismo
and a PB G4) had problems needing expensive replacements, both which I
fixed for fraction of that cost. And most repair shops *don't* make very
deep investigations for cost reasons (they charge a hefty hourly bill).


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NVRAM reset and dead motherboard

2005-04-18 Thread Daniel Colwell
Hello All,
A coworker told me that he was about ready to get a new battery for his 
daughters Powerbook. He asked if there was any way to get more out of 
the battery she had before he plunked down $150 or so for a new one.

Since I had some luck getting more time out of my Pismo battery, I told 
him to try what I had done.

Here are the instructions I gave him:
restart with command-option-O-F to bring up open firmware
type reset-nvram
type reset-all
I got this from : http://www.macintouch.com/laptopbatt.html and it has 
been quoted here in G-Books as well.

As I said, it gave my old battery a nice boost. However, things didn't 
go as smoothly for him. In fact, the laptop died and would not restart. 
Unfortunately he ran out of Applecare just a month or so ago. He took 
it in to a local Apple shop and they had to replace the motherboard. 
Cost him over $400. They said that it had nothing to do with my help, 
but I feel terrible about it. I remember several posting about this and 
nothing about any adverse affects.

So...  Could running these instructions fry a motherboard? I don't know 
exactly what type of Powerbook his daughter has. I could find out if 
needed.

Thanks in advance for any info.
Dan-

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