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Mac Forum / General / Portable Macs / January 2006Pismo refuses to wake up
From a few days my pismo refuses to boot ..... when I press the startup button I can hear the hard drive spinning and then nothing more .... black screen .... I have tried a reset but no success ... Yesterday I succeeded to boot and working for the whole day. But today again impossible to boot .... I've tried and tried .... Any idea ? Thanks for any Jo > From a few days my pismo refuses to boot ..... when I press the startup > button I can hear the hard drive spinning and then nothing more .... > black screen .... I have tried a reset but no success ... > Yesterday I succeeded to boot and working for the whole day. But today > again impossible to boot .... I've tried and tried .... Probably the PRAM battery is finally gone. It's an easy replacement. m.  Signaturematt neuburg, phd = matt@tidbits.com, http://www.tidbits.com/matt/ Tiger - http://www.takecontrolbooks.com/tiger-customizing.html AppleScript - http://www.amazon.com/exec/obidos/ASIN/0596005571 Read TidBITS! It's free and smart. http://www.tidbits.com > From a few days my pismo refuses to boot ..... when I press the startup > button I can hear the hard drive spinning and then nothing more .... [quoted text clipped - 6 lines] > > Jo Try resetting the PMU. This is done differently on different PB models. Put "reset PMU" in the search box at Apple's support site and you'll get an article explaining how to do it on various models. You may need to replace the logic board battery - the Wallstreet won't wake up with a dead PRAM battery. Cathy Signature"there's a dance or two in the old dame yet." - mehitabel C.Stevenson, M.D. cats1921@invalidsonic.net Thus spake Cathy Stevenson: > Try resetting the PMU. This is done differently on different PB > models. Put "reset PMU" in the search box at Apple's support site and > you'll get an article explaining how to do it on various models. Press and hold down the power button. The Pismo will show some sign of life for a second and go silent again. The PMU has been reset. Press once to see if it will now boot. > You may need to replace the logic board battery - the Wallstreet won't > wake up with a dead PRAM battery. Most likely. SignatureDaveC, Pismo owner, original PRAM battery... me@privacy.net This is an invalid return address Please reply in the news group First of all I want to thanks anyone who answered here .... it's always a pleasure to receive your advice :) > Thus spake Cathy Stevenson: > [quoted text clipped - 5 lines] > for a second and go silent again. The PMU has been reset. Press once to see > if it will now boot. Yes my pismo boot again .... I have tried this But I had to go further in investigation because one time it refuses to boot and one other it did .... As I have two pismos here (one is G4 600 upgraded and this is the faulty one) ... I removed all the main parts from it to the other .... making some kind of exchnage between both machines; hard drives, processors because I needed to retriove some important mails Then both machines booted without any problems ...; I worked with the G4 upgraded pismo all the day and booted successfully more than ten times ... After that I tried to put back all the "genuine components" to the corresponding computer .... and miracle everything worked like before .... I will see if I can continue to boot again and again ... And yes I have tried to reset the PMU ... soi it seems to work again > > >>You may need to replace the logic board battery - the Wallstreet won't >>wake up with a dead PRAM battery. I don't think this the problem because I replaced both in both pismos last year ... Another problem I have is that my wireless mouse refuse sometimes to work correctly on the pismo, sometimes it looses control; - no reaction on elements when clicking - crossing above the dock doesn't magnify it as usual - being in the center of the desktop opens spotlight - ..... very strange behaviour Do you think there is some related problem with this ? Anyway thanks for your advices my friends Yours Jo > Most likely. > Then both machines booted without any problems ...; I worked with the G4 > upgraded pismo all the day and booted successfully more than ten times ... > After that I tried to put back all the "genuine components" to the > corresponding computer .... and miracle everything worked like before > .... I will see if I can continue to boot again and again ... When you push down the daughterboard into place, if it isn't fully seated, the computer won't start up. So it may be that swapping components simply caused you to reseat everything properly. m. Signaturematt neuburg, phd = matt@tidbits.com, http://www.tidbits.com/matt/ Tiger - http://www.takecontrolbooks.com/tiger-customizing.html AppleScript - http://www.amazon.com/exec/obidos/ASIN/0596005571 Read TidBITS! It's free and smart. http://www.tidbits.com |
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