12gb ram installed only showing as 8gb

Jackie69

Reputable
Apr 26, 2017
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We have a gigabyte FGA85X-UP4 motherboard. We had 8gb of ram and installed another 4gb the other day but only 8gb shows in windows 7. Speccy shows 12gb installed. What can be our problem here? He put the ram in as follows; The first 4gb stick is in the fourth slot then empty slot then the new 4gb in the third slot and other 4gb in fourth slot (slot closest to the CPU Heatsink. Are we doing it wrong? Also noticed that the computer slowed down a bit after installing new ram. It seems to me it is doing the opposite than it's suppose to! Can someone please help us out here? Do we need to update Bios or what do we need to do. Frustrated!
 
Solution
Try clear the CMOS by the jumper, make sure unplug the power core from the wall outlet. After that reboot the PC, if the RAM work, they will show up in 12GB.