Apple Event: May 7th at 7 am PT
Symptoms: Pressing power button-get white power light on; hard drive starts; no startup chime; optical drive will not accept disk;
fans start and speed up after about a minute; two LEDs on mother board light, no video LED.
Any thoughts on problem and or remedy?
iMac
Hi
sorry to hear your Mac is not Booting up as expected
Sounds like it could be a Graphic or Ram issue
Have you upgraded or installed additional Ram
link explains the startup process for a Mac
About the screens you see when your Mac starts up - Apple Support
Do the Following
1. Shut Down Mac
2. Remove Power cord & usb connections
3.reconnect power cord after 30 seconds
4.reconnnect any essential usb devices (keyboard - Mouse)
5.when booting up
6. immediately after you press power button
7. press and hold , alt , command , P & R keys
8.only release after you hear startup sound for a second time
The about reset the (SMC) System Management controller and (PRAM)
below links explain
https://support.apple.com/en-ie/HT201295
OS X Yosemite: Reset your computer’s PRAM
Regards
Hi
sorry to hear your Mac is not Booting up as expected
Sounds like it could be a Graphic or Ram issue
Have you upgraded or installed additional Ram
link explains the startup process for a Mac
About the screens you see when your Mac starts up - Apple Support
Do the Following
1. Shut Down Mac
2. Remove Power cord & usb connections
3.reconnect power cord after 30 seconds
4.reconnnect any essential usb devices (keyboard - Mouse)
5.when booting up
6. immediately after you press power button
7. press and hold , alt , command , P & R keys
8.only release after you hear startup sound for a second time
The about reset the (SMC) System Management controller and (PRAM)
below links explain
https://support.apple.com/en-ie/HT201295
OS X Yosemite: Reset your computer’s PRAM
Regards
Tried your suggestion. No chime at all-not even one.
Thanks
Thanks for the reference.
I already had tried all the steps indicated in the reference, but to no avail.
I don't know why I don't even get a chime or "breaking glass" sounds.
The logic board obviously getting sustained power. Not clear to me why optical drive
wont accept disk-as if it getting no power.
Will your Mac boot to Recovery, ?
IF not then , contact Apple support
Your Mac may require service !
Reminder: no G5 can run a version of OS X that includes 'recovery'.
Thanks for your suggestions.
I solved the problem the problem by substituting the hard drive with one that had OS 10.5 already loaded.
It booted up instantly-chime, etc. At boot up I could hear the optical drive reset also so that the drive would accept a dvd.
I had tested the original hard drive using disk utilities while externally connected to another computer and it passed.
After I did the substitution, I retested the original hard drive and it wouldn't even spin up. I guess it was near "death'
when I first tested it.
Again thanks to all for the ideas.
hag
G5 iMac wont boot
