SO-DIMM DDR3RAM didn’t work iMac late 2009

dannydagranny

macrumors newbie
Original poster
Dec 7, 2018
2
0
My iMac 21.5” late 2009 didn’t accept a SO-DIMM DDR3 PC12800 4 GB from Team Group, it only beepeed when I tried to power on. Why?
 

nambuccaheadsau

macrumors 68000
Oct 19, 2007
1,743
409
Nambucca Heads Australia
4 - 204-pin PC3-8500 (1066 MHz) DDR3 SO-DIMM

Coz it is the wrong memory. Above is from Mactracker. Macs are very fussy about modules, especially older models. Crucial and OWC, both Mac specialists, recommended.
 

dannydagranny

macrumors newbie
Original poster
Dec 7, 2018
2
0
So even if the RAM I bought was backward compatible with PC3-8500 1066MHz it’s a no no?