I tried to upgrade Imac but Monitor went dead

7 posts / 0 new
Last post
Offline
Last seen: 19 years 5 months ago
Joined: Feb 5 2005 - 12:19
Posts: 2
I tried to upgrade Imac but Monitor went dead

I changed my hard drive, and tried to upgrade my imac 350 OS 9 to X,
and my monitor just went dead. I hear the machine (hrad drive)working but the screen is black.

does anyboby know if this problem is fixable?

I noticed I forgot about the jumpers on the new hard drive, i fixed it but with no luck, monitor is still dead...
any help? thanks.

token's picture
Offline
Last seen: 2 years 11 months ago
Joined: Dec 20 2003 - 10:38
Posts: 231
Try zapping the pram.

Try zapping the pram.

martakz's picture
Offline
Last seen: 13 years 2 months ago
Joined: Dec 20 2003 - 10:38
Posts: 634
Have you got the latest firmw

Have you got the latest firmware?

Offline
Last seen: 17 years 9 months ago
Joined: Dec 26 2003 - 16:21
Posts: 584
Uh oh...

If you didn't update the firmware before the OS X installation, DO NOT ZAP THE PRAM.

Cue someone who posts several useful links...

macintoshme's picture
Offline
Last seen: 9 years 1 week ago
Joined: Sep 19 2004 - 20:55
Posts: 150
Same problem

I have a iMac 400 that I am upgrading to X and my problems started when I first booted from the OS x.2.7 disc. The computer started acting as if it had bad power circuits. After much fiddling I got it to boot a couple times (pure luck) and discovered that to install the os I needed to upgrade the firmware. When the computer did boott it used the external monitor port only. I upgraded the firmware (which took forever due to the random power problem) and it the power issues seem to be solved. I just need to get the internal monitor to work again.

Any help would be appreciated!

Macintosh me

Zydeco's picture
Offline
Last seen: 3 years 5 months ago
Joined: Dec 26 2003 - 16:21
Posts: 48
update firmware

it is a problem on some old iMacs, they require a firmware upgrade for to run OSX but the installer doesn't notice, so it installs correctly and the video goes dead.
i heard some people fixed it booting off a hard disk with mac os 9 and timbuktu installed, and updating the firmware, controlling it with another mac, but i'm not sure about it, i thought firmware updaters required you to start up without extensions

can you boot from a Mac OS 9 cd?

macintoshme's picture
Offline
Last seen: 9 years 1 week ago
Joined: Sep 19 2004 - 20:55
Posts: 150
see if this helps

If you can get it to boot without video that is the first step. Then press the power on the front once. Once the orange light flashes, hit a key and wake up the computer. Now install the firmware update. It took me a while because of the power problems, ut be persistent, it will eventually install the firmware. It took me about a half hour because the power problem would kick in and I would end up unpluging the machine and the update would be lost from the ram before it could upgrade the firmware.

mac me

Log in or register to post comments