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Deze versie is geschreven door: oldturkey03 (stem details)

Titel:

New-to-me iMac with display and boot issues.

Tekst:

This machine sat unused for about a year.  The previous user had "tried to fix it", but I have no idea what he did or what problems he was trying to fix.

My experience;  First boot got to a login screen and there was obviously something wrong with the display.  It's hard to describe, but the splash screen showed random flickers and the color/contrast was obviously off.  I didn't have the keyboard handy, so only the mouse (from another PC) was plugged in. I have no passwords, but thought that I could get into the guest account.  Unfortunately, the only guest account was "guest1" and password protected.  I noticed that the machine is running OS X, though I have no idea which version, as I couldn't log in.

After the first 2-3 boots, the machine seemed to run into more problems.  Sometimes, after a soft-reset, the machine wouldn't get to the login screen.  Instead, I would see a black screen and after approx. 20 seconds, the fan would go to high speed and the machine appeared stuck.  Display problems persisted. After getting an Apple wireless keyboard, I tried "zapping the PRAM"and booting into single-user mode to bypass the login (with varying degrees of success, none of which got me to desktop.)  I then resigned myself to fixing the display and boot issues.

Using the guides here, I opened the case to check for obvious hardware issues.  Employing the typical precautions, I carefully checked for "bad caps" and LED status lights.  LED status showed nothing out of sorts and I could find no "bad caps".  I ran fsck from a "command t" prompt and the machine reported HD was ok.  In my admittedly ignorant assessment, the computer seems physically healthy.

What can I try next?

Thanks in advance.

Toestel:

iMac G5 17" Model A1058

Status:

open

Goedgekeurd antwoord:

+66421

Origineel bericht door: Joel

Titel:

New-to-me iMac with display and boot issues.

Tekst:

This machine sat unused for about a year.  The previous user had "tried to fix it", but I have no idea what he did or what problems he was trying to fix.

My experience;  First boot got to a login screen and there was obviously something wrong with the display.  It's hard to describe, but the splash screen showed random flickers and the color/contrast was obviously off.  I didn't have the keyboard handy, so only the mouse (from another PC) was plugged in. I have no passwords, but thought that I could get into the guest account.  Unfortunately, the only guest account was "guest1" and password protected.  I noticed that the machine is running OS X, though I have no idea which version, as I couldn't log in.

After the first 2-3 boots, the machine seemed to run into more problems.  Sometimes, after a soft-reset, the machine wouldn't get to the login screen.  Instead, I would see a black screen and after approx. 20 seconds, the fan would go to high speed and the machine appeared stuck.  Display problems persisted. After getting an Apple wireless keyboard, I tried "zapping the PRAM"and booting into single-user mode to bypass the login (with varying degrees of success, none of which got me to desktop.)  I then resigned myself to fixing the display and boot issues.

Using the guides here, I opened the case to check for obvious hardware issues.  Employing the typical precautions, I carefully checked for "bad caps" and LED status lights.  LED status showed nothing out of sorts and I could find no "bad caps".  I ran fsck from a "command t" prompt and the machine reported HD was ok.  In my admittedly ignorant assessment, the computer seems physically healthy.

What can I try next?

Thanks in advance.

Toestel:

iMac G5 17" Model A1058

Status:

open