bsod 124 and freeze

bsod 124 and freeze while gaming

hi i have this problem about 2-3 months the first 2 months i had win vista 64bit now i have win 7 64bit but i have still the same problem

problem:
bsod - stop 124 when i was gaming (the game was aoe)
screen freeze also

suspicion:
dram only 8gb is reconized from the 16gb
sata
(i had also a problem whit the sata there was two vista's installed so the pc didnt started up)

things i recently installed:
new cpu cooler (cooler master v8)
new case fan

attachement:
win score
health reportFree Cloud Storage - MediaFire

minidump

system:
win 7 home preminium 64bit
asus sabertooth 990fx am3+
amd fx-8120 cpu
16gb (4*4gb) corsair 1600mhz
xfx (ati) radeon hd 7970 3gb
silverstone 1500w
sata 596gb and sata 232gb
onboard soundcard

what program i used:
3dmark (nothing strange happend)
memtestok 8gb of 16gb no error

Please follow the http://www.sevenforums.com/crashes-debugging/96879-blue-screen-death-bsod-posting-instructions.html to provide more information to help us help you.

Also, we should check the RAM issue more thoroughly.