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PowerBook Al 1GHz - 4 Beeps at Startup

received today a AL Book

seller said that it beeps 3 times, but unfortunately - it beeps 4 times (light flashes 5 times) - so the boot rom should be faulty

is there any way to fix this problem?

Risposto! View the answer Anch'io ho questo problema

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2 Risposte

Soluzione Prescelta

The boot rom is not on the hard drive but in a flash memory module on the logic board (just like the integrated memory modules). The boot rom is an instruction set that the computer use before loading the OS. I think the boot rom can only be modified by a firmware update.

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Commenti:

thanks for the reply the problem would be, that there is no firmware update listed (or i'm to blind to find it)

was there a ASD for the 1ghz or was the ASD starting at the 1,33 (but then would the ver. # 2.5.7 would not make much sense) - a simple yes or no answer to this particular question would be enough

da

If the boot room module itself is faulty I think that means a logic board replacement. If the boot rom image is corrupted maybe it can be reflashed but I really don't know (Google search..). Also the boot rom module might be physically replaced by a working one (salvaged from a dead board) again I don't know if it can be done....Sorry

da

ok thanks,

i will try something with the ASD, also found some firmware images - but first i will read a little bit more about that - in the morning, it's almost 12:38 am - bedtime ;-)

da

to "close" this question: i sold the powerbook - the buyer has a good logicboard for the beautiful case (no scratches or something else) - well, some things can not easily fixed - the only way would have been an otherwise toasted board, swapping the chips would have been the easiest way to fix it

da

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Here's Apple explanation of the different startup beeps: http://support.apple.com/kb/HT1547

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Good info + Ralph

da

right, but can the 4 beep problem be fixed ?

da

First thing I would do is zero out the hard drive to eliminate boot block problems

da

I replaced the hdd - same beeping

there is nothing on the screen, wont boot from the setup disk (optical drive is ok, took one of my spare drives)

da

What's your status on ASD issues? I have the 3S123 with updates 2005.06.07 & 08. Have anything to trade? Contact at mayer@door.net

da

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markus weiher sarà eternamente grato.
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