Can I add 4gb + 8gb RAM

crackerfile

Reputable
Oct 20, 2015
2
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4,510
My desktop Motherboard (GA-F2A58M-S1) has 2 RAM slot and came with
ADATA 4GB (1 x 4GB) 240-Pin UDIMM DDR3L 1600 MHz PC3-12800 CL11 V1.35 in one slot.
Is it possible to add
Crucial 8GB (1 x 8GB) 240-Pin UDIMM DDR3L 1600 MHz PC3L-12800 CL11 V1.35 in 2nd slot, without removing the 4GB. So that 4GB+8GB=12GB.
Will it work fine? will it be detected as 12GB and i'll be able to use it without any problem?