My Mac have 2x4 (8GB) of ram but after installing Lion os x I can see 2x2 (4GB) or Ram only, I have tried every slot with swaping all the slots.

Friends I have upgraded my SL to Lion after installing I see only 4 GB of ram out of 8 gb (2gb x 4), I have tried all the options changing slots and swaping ram to different slots and card also.
V' Sam.

Hi,
Thanks for your reply... I just downloaded your recomended software, this software test the memory which is in the list of system, which system says these memory slots are availble. but the issue with my system is different. My all ram slot are working well on both memory slot cards, but in actuall I have 4 memory sticks of 2gb each (8gb) which was installed on one card and when I installed Lion OS X it is showing only 4 GB of memory 2 memory sticks are showing only other 2 memory sticks are not showing in machine when we start and see in system information. I replaced 2 memory sticks with other they were also working and I even tried placing all memory sticks on other memory slot card they were also working but only 2 slots are showing... only 2 memory sticks of 2 gb - 4 GB out of 8 GB.

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