Salta al contenuto principale

Aggiusta la tua roba

Diritto alla Riparazione

Componenti & Strumenti

Aiuto

Versione corrente di: Lia Tomlinson ,

Titolo:

Can a dying PRAM battery cause display and clock issues?

Testo:

I purchased an iMac G3 a few days ago (for nostalgia reasons) and all seemed fine with it until last night when I booted it up again and the display was offset to the bottom of the frame, making it cut off. It also had these thin, shaking horizontal lines all the way down the display and when it completed booting up, the date and time was reset to 1902, I believe.

I first attempted resetting the PRAM to no success and then booted the iMac command line prompt to reset the NVRAM and the screen seemed fine in that mode. After it restarted, the screen seemed perfect again for a few minutes until the screen went offset again and the lines return. (The clock did not reset this time)

What could possibly have caused this and how can I fix it?

My theory so far is that it’s a result of the iMac being left unplugged for an extended period of time and has affected the PRAM battery somehow as that would explain the reset on the time and date. Would that also affect the display though?

Picture attached to show the horizontal lines and display alignment.

UPDATE: I left it on for half an hour this morning and the display keeps alternating between working normally and the offset resolution with the shaking lines again. Each switch lasting a couple minutes before going back to the other. Could this still be the PRAM still or would it be more graphics related?

Dispositivo:

iMac G3 Model M5521

Stato:

open

Risposta Accettata:

565397

Modifica di: Lia Tomlinson ,

Titolo:

Why did my iMac G3 boot up with horizontal linesCan a dying PRAM battery cause display and a reset dateclock issues?
Why did my iMac G3 boot up with horizontal linesCan a dying PRAM battery cause display and a reset dateclock issues?

Testo:

I purchased an iMac G3 a few days ago (for nostalgia reasons) and all seemed fine with it until last night when I booted it up again and the display was offset to the bottom of the frame, making it cut off. It also had these thin, shaking horizontal lines all the way down the display and when it completed booting up, the date and time was reset to 1902, I believe.
 
I first attempted resetting the PRAM to no success and then booted the iMac command line prompt to reset the NVRAM and the screen seemed fine in that mode. After it restarted, the screen seemed perfect again for a few minutes until the screen went offset again and the lines return. (The clock did not reset this time)
 
What could possibly have caused this and how can I fix it?
 
My theory so far is that it’s a result of the iMac being left unplugged for an extended period of time and has affected the PRAM battery somehow as that would explain the reset on the time and date. Would that also affect the display though?
 
Picture attached to show the horizontal lines and display alignment.
 
 
 
UPDATE: I left it on for half an hour this morning and the display keeps alternating between working normally and the offset resolution with the shaking lines again. Each switch lasting a couple minutes before going back to the other. Could this still be the PRAM still or would it be more graphics related?

Dispositivo:

iMac G3 Model M5521

Stato:

open

Modifica di: Lia Tomlinson ,

Titolo:

Why did my iMac G3 boot up with horizontal lines and a reset date?

Testo:

I purchased an iMac G3 a few days ago (for nostalgia reasons) and all seemed fine with it until last night when I booted it up again and the display was offset to the bottom of the frame, making it cut off. It also had these thin, shaking horizontal lines all the way down the display and when it completed booting up, the date and time was reset to 1902, I believe.
 
I first attempted resetting the PRAM to no success and then booted the iMac command line prompt to reset the NVRAM and the screen seemed fine in that mode. After it restarted, the screen seemed perfect again for a few minutes until the screen went offset again and the lines return. (The clock did not reset this time)
 
What could possibly have caused this and how can I fix it?
 
My theory so far is that it’s a result of the iMac being left unplugged for an extended period of time and has affected the 3.6 volt 1/2 AA batteryPRAM battery somehow as that would explain the reset on the time and date. Would that also affect the display though?
My theory so far is that it’s a result of the iMac being left unplugged for an extended period of time and has affected the 3.6 volt 1/2 AA batteryPRAM battery somehow as that would explain the reset on the time and date. Would that also affect the display though?
 
Picture attached to show the horizontal lines and display alignment.
 
 
 
UPDATE: I left it on for half an hour this morning and the display keeps alternating between working normally and the offset resolution with the shaking lines again. Each switch lasting a couple minutes before going back to the other. Could this still be the PRAM still or would it be more graphics related?

Dispositivo:

iMac G3 Model M5521

Stato:

open

Post originale di: Lia Tomlinson ,

Titolo:

Why did my iMac G3 boot up with horizontal lines and a reset date?

Testo:

I purchased an iMac G3 a few days ago (for nostalgia reasons) and all seemed fine with it until last night when I booted it up again and the display was offset to the bottom of the frame, making it cut off. It also had these thin, shaking horizontal lines all the way down the display and when it completed booting up, the date and time was reset to 1902, I believe.

I first attempted resetting the PRAM to no success and then booted the iMac command line prompt to reset the NVRAM and the screen seemed fine in that mode. After it restarted, the screen seemed perfect again for a few minutes until the screen went offset again and the lines return. (The clock did not reset this time)

What could possibly have caused this and how can I fix it?

My theory so far is that it’s a result of the iMac being left unplugged for an extended period of time and has affected the 3.6 volt 1/2 AA battery somehow as that would explain the reset on the time and date. Would that also affect the display though?

Picture attached to show the horizontal lines and display alignment.

Dispositivo:

iMac G3 Model M5521

Stato:

open