power supply replaced but still unable to power up.
After the power supply replaced. Plug in power cord the LED #1 is on. Press power button the LED #2 lit momentary follow by rectangular shape LED lit momentary & left lower fan turn on momentary, then the LED #4 Amber light up and stay. Reset SMU by re-plug power cord while pressing the power button no help.
Hardware Overview:
Model Name: iMac G5
Model Identifier: PowerMac12,1
Processor Name: PowerPC G5 (3.1)
Processor Speed: 2.1 GHz
Number Of CPUs: 1
L2 Cache (per CPU): 512 KB
Memory: 2.5 GB
Bus Speed: 700 MHz
Boot ROM Version: 5.2.6f1
Serial Number (system): W85479ANTAR
Hardware UUID: 00000000-0000-1000-8000-001451277FC6
Esta é uma boa pergunta?
1 comentário
Once restored all parts, the iMac back to normal & functional. iMac run for 20 minutes latter it switched to sleep mode automatically, and I noticed the back panel very warm, few minutes later it quit. Suspect the cheap heatsink compounds that I applied is not good enough to transfer heat from CPU, may need to use "Cooler Master" compound instead. Anyway let the iMac cool down for 30 minutes then turn it on with an stand fan blow air from the side, now it works for hours with no problem. End up I put one fordable notebook cooling pad aim at iMac bottom grill to help cooling and it works fine even I removed the stand fan away. Through this event I learned always leave the headsink devices and the MCB as one unit, don't disturb it. iMac G5 got cooling issue need to address. Put one notebook cooling pad ( 5VDC / USB ) underneath the iMac it really help. iMac G5 is built with simplicity, so it's easy to T/S and rebuild. I enjoy the process, and thanks all your help.
por DINO WU