Friends need your help. Was a fully working 2011 iMac 21.5 i5/2.5/12gb/ssd500
I decided to change the processor to i7 2600 and video rtx 880.
After careful disassembly and assembly, it did not turn on. I began to study the topic and saw diagnostic LEDs. I changed back the processor and video card to the one that was standing. When the cord is connected, one LED is constantly lit. When you press the power button, nothing happens. Meryl on the terminals of the power supply, there is 12v and there is 4.4.
I even tried to close two contacts on the power supply. The system one comes to life, all the LEDs are on, the cooler is spinning. The truth is going to the limit. Didn't keep it that way for a long time.
I decided to change the processor to i7 2600 and video rtx 880.
After careful disassembly and assembly, it did not turn on. I began to study the topic and saw diagnostic LEDs. I changed back the processor and video card to the one that was standing. When the cord is connected, one LED is constantly lit. When you press the power button, nothing happens. Meryl on the terminals of the power supply, there is 12v and there is 4.4.
I even tried to close two contacts on the power supply. The system one comes to life, all the LEDs are on, the cooler is spinning. The truth is going to the limit. Didn't keep it that way for a long time.