i purchased this imac g5 dec 2005 and it worked perfectly for 4 month.
Machine Name: iMac G5
Machine Model: PowerMac8,2
CPU Type: PowerPC G5 (3.0)
Number Of CPUs: 1
CPU Speed: 2 GHz
L2 Cache (per CPU): 512 KB
Memory: 512 MB
Bus Speed: 667 MHz
Boot ROM Version: 5.2.5f1
about 2 weeks ago i started experiencing mainly start up and occasionlally switch of problems.
during start up I will get to grey screen with apple logo and then the start up wheel turning eternally. i've tried the different ways of start ups ( safe mode etc) but none of them will work.
mac starts with install disc. volume/permissions repairs (although not always necessary) don't solve the problem.
the only way to get it fixed is to reinstall os x. it then will work for a while but eventually it will happen again.
typical scenario: itunes or iphoto runs and all of a sudden a command will bring up the coloured spinning wheel. application can't be shut then via forced shut. wheel will disappear after a while and application will continue working. but next start up will end up in problem mentioned above. or twice switch off problem: icons disappear after switch off but background screens stays and mac will not switch off.
problem started with os x 10.4.3. mac is running on 10.4 now because its the version on my start up disc. at somme stage i installed mac os x from scratch without securing previous settings. after that i've been using only disc software. external devices: ipod nano and speaker system logitech Z4(added recently).
hardware test: passed
neverhteless problem occured again.
is it a software problem or could it be a hardware problem?
every kind of help or suggestions highly appreciated