Sykulski
Member
Hi.
This is an iMac 21-inch (slim version).
Came in with the 3 RAM beep issue. Replaced RAM still beeping three times. Checked DDR PWR 1.5V and 0.75V OK.
Then i replaced the CPU. Now it starts but if I make PRAM reset the 3 beeps return. If I then take out power cord for a while and put it back again it starts normally but the 3 RAM beeps return after each time I PRAM reset.
I then tried putting the original CPU back in. With this CPU it cannot even start. It is beeping three times from beginning.
Any clues?
This is an iMac 21-inch (slim version).
Came in with the 3 RAM beep issue. Replaced RAM still beeping three times. Checked DDR PWR 1.5V and 0.75V OK.
Then i replaced the CPU. Now it starts but if I make PRAM reset the 3 beeps return. If I then take out power cord for a while and put it back again it starts normally but the 3 RAM beeps return after each time I PRAM reset.
I then tried putting the original CPU back in. With this CPU it cannot even start. It is beeping three times from beginning.
Any clues?