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Aktuelle Version von: Adam O'Camb ,

Titel:

LED Lights on Logic Board- 1 & 2 not on?

Text:

I replaced a bad logic board and only 3 & 4 LED lights are on...1 & 2  are off. Also when I try to start I get 3 beeps.  I have replaced the RAM with known working ram and tried only one stick at a time in different slots..same results!  I also replaced the power supply...same results.

Any ideas on what to check next?

Gerät:

21.5 Imac (mid 2011)iMac Intel 21.5" EMC 2428
21.5 Imac (mid 2011)iMac Intel 21.5" EMC 2428

Status:

open

Ursprünglicher Beitrag von: dstine ,

Titel:

LED Lights on Logic Board- 1 & 2 not on?

Text:

I replaced a bad logic board and only 3 & 4 LED lights are on...1 & 2  are off. Also when I try to start I get 3 beeps.  I have replaced the RAM with known working ram and tried only one stick at a time in different slots..same results!  I also replaced the power supply...same results.

Any ideas on what to check next?

Gerät:

21.5 Imac (mid 2011) EMC 2428

Status:

open