gocarlo
Well-known member
Hey there. I've had this iMac G3 is perfect working order since it arrived in August of 1998. I've kept it running since then - boot it up a few times a year and keep it in a temp controlled space in my home. I've made minor upgrades to RAM and VRAM in the 20+ years since then. Machine works beautifully still. This weekend I installed some upgrades that just arrived from OWC: New PRAM battery, two sticks of 256MB RAM, and the OWC Legacy SSD. Installing the hardware was easy. But now the machine doesn't make the startup chime, and won't boot. It just sits there w/ light on, fan running, CD-ROM drive makes a little noise, but not like it's booting.
Here's what happens when I hit the power switch:
I've read the tech manual for this iMac, and have tried:
The iMac still turns on without a chime, blank screen, fan running, power button light is on. I can see the little light on the logic board is on too.
Any thoughts on what I might've missed? Thanks!
Here's what happens when I hit the power switch:
- Never makes this startup chime.
- The light comes on in the power switch.
- The fan starts running.
- I hear the monitor power on (but no signal, stays dark)
- I hear the CD-ROM drive come alive (sounds like it spins a little, but not spinning like it would if it was booting from CD)
- Because its an SSD, no HD noises, as expected
I've read the tech manual for this iMac, and have tried:
- Pressing the CUDA button
- Resetting the logic board
- Resetting the RAM
- Putting the original memory back inside.
- Installing a backup processor card I have.
- Re-inserted all the internal connectors
- Connected an old 14" Apple Multiple Scan external display to see if it was a display issue.
The iMac still turns on without a chime, blank screen, fan running, power button light is on. I can see the little light on the logic board is on too.
Any thoughts on what I might've missed? Thanks!
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