On 2/6/10 10:26 PM, Jim Scott wrote:
On Feb 6, 2010, at 10:12 PM, Clark Martin wrote:
On 2/6/10 12:52 PM, Kevin Avery wrote:
I have an indigo iMac 600 DV that I was recently given. There is not a
hard drive in it currently. I put an original iMac grey CD in it to
see if it would boot. I get the startup bong, but then it goes to a
white screen and just stays there.
I only tried to boot it off the CD to see if it would boot. Does it
require a hard drive to boot? I thought if it couldn't find a hard
drive it would get to a screen with the missing folder icon.
The guy who gave it to me said it was working before he pulled the
drive. I was hoping to set this thing up for my Mom to use.
No, without a harddrive and with or without a CD it should still boot to the
grey screen with the flashing question mark (and go on if a boot CD is in the
drive).
Startup bong - good
White screen - bad
That it bonged is a good sign. It says the CPU is up and running. That the
screen is white implies a video problem. I would try the usual, PMU reset or
at least a PRAM zap. You might also try reseating the RAM. I don't think
that's it but it's a good idea anyway.
Try an Open Firmware reset of the video RAM.
Press the power button. As soon as the iMac chimes/bongs, press and hold down
the Option, Command, O and F keys. When the light grey Open Firmware comes up
(it will take a while), take your fingers off the four keys.
At the prompt, type this series of three lines, hitting the Enter/Return key at
the end of each line:
set-defaults
reset-nvram
reset-all
As soon as you hit Enter/Return after the last line, the iMac will chime/bong
and restart. If corrupted nvram was the problem, or if parameter memory was
confused, this should get your iMac to boot to the desktop.
This has worked for me countless times in getting iMacs, iBooks and other Macs
with video-related startup issues/symptoms to boot. Good luck!
I was going to point out that this is going to be a bit tricky since
only a white screen comes up. It's possible but not likely that the OF
screen will appear. You can still try the above typing stuff in blindly.
But it did remind me of another trick to try. You can connect a VGA
monitor to the computer and see what you can see on that. It only
mirrors the built in screen so it may just show the white screen but it
might not.
--
Clark Martin
Redwood City, CA, USA
Macintosh / Internet Consulting
"I'm a designated driver on the Information Super Highway"
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