I used the recommended 2x2gb to up grade my 20” iMac 2GHz core duo early 2006. Unfortunately the iMac would not start up with the 4 GB of RAM installed. I took out one 2 GB SO-DIMM’s and it worked.
I then swapped the 2 GB SO-DIMM’s over and it still worked so I proved both replacement SO-DIMM’s are working.
Then I slotted in the old 512 SO-DIMM into the spare slot and it did start up.
So I’m now thinking maybe controller to your advice the motherboard cannot handle the extra 1 GB of RAM?
My other alternative is to return one of the 2 GB SO-DIMM to the supplier and swap it for a 1 GB SO-DIMM any thoughts.
Cheers Ed
+
+
P.S. The cost of the 4 GB of RAM was less than £10 so it’s not the end of the world. I can swapout one of the 2 GB SO-DIMM for 1GB SO-DIMM giving 3GB in total. The speed has improved with just the 1GB increase so I’m happier than it was before.
I used the recommended 2x2gb to up grade my 20” iMac 2GHz core duo early 2006. Unfortunately the iMac would start up with the 4 GB of RAM installed. I took 2 GB SO-DIMM and it worked.
+
I used the recommended 2x2gb to up grade my 20” iMac 2GHz core duo early 2006. Unfortunately the iMac would not start up with the 4 GB of RAM installed. I took out one 2 GB SO-DIMM’s and it worked.
-
I swapped the SO-DIMM over and it still worked so I proved both replacement SO-DIMM’s worked.
+
I then swapped the 2 GB SO-DIMM’s over and it still worked so I proved both replacement SO-DIMM’s are working.
Then I slotted in the old 512 SO-DIMM into the spare slot and it did start up.
So I’m now thinking maybe controller to your advice the motherboard cannot handle the extra 1 GB of RAM?
My other alternative is to return one of the 2 GB SO-DIMM to the supplier and swap it for a 1 GB SO-DIMM any thoughts.
Hi I used the recommended 2x2gb to up grade my 20” iMac 2GHz core duo early 2006. Unfortunately the iMac would start up with the 4 gb of ram installed. I took 2 gb card and it worked. I stopped the cards over and it still worked so I proved both replacement cards worked. Then I slotted in the old 512 card into the spare slot and it did start up? So I am now thinking maybe contri to your advice the motherboard cannot handle the extra 1gb of ram? My other alternative is to return one of the 2gb cards to the supplier and swop it for a 1gb card....ant thoughts. Cheers Ed
+
Hi,
+
+
I used the recommended 2x2gb to up grade my 20” iMac 2GHz core duo early 2006. Unfortunately the iMac would start up with the 4 GB of RAM installed. I took 2 GB SO-DIMM and it worked.
+
+
I swapped the SO-DIMM over and it still worked so I proved both replacement SO-DIMM’s worked.
+
+
Then I slotted in the old 512 SO-DIMM into the spare slot and it did start up.
+
+
So I’m now thinking maybe controller to your advice the motherboard cannot handle the extra 1 GB of RAM?
+
+
My other alternative is to return one of the 2 GB SO-DIMM to the supplier and swap it for a 1 GB SO-DIMM any thoughts.
Hi I used the recommended 2x2gb to up grade my 20” iMac 2GHz core duo early 2006. Unfortunately the iMac would start up with the 4 gb of ram installed. I took 2 gb card and it worked. I stopped the cards over and it still worked so I proved both replacement cards worked. Then I slotted in the old 512 card into the spare slot and it did start up? So I am now thinking maybe contri to your advice the motherboard cannot handle the extra 1gb of ram? My other alternative is to return one of the 2gb cards to the supplier and swop it for a 1gb card....ant thoughts. Cheers Ed