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Someday (i don't know exactly when) My Z68 Extreme4 Gen3 MB stops to recognizes all RAM installed. But cpu-z does. Even memtest see 4 sticks, but summary show only 2 of them. I try to check sticks one by one, the all working, but somehow when i inserts one the others disappears. I updated the bios, i reseted the bios many times, but it wasn't helpful.
I have 4 stick - 2x2GB and 2x4GB.
one sticks
https://www.corsair.com/eu/en/Categories/Products/Memory/High-Performance-Memory/Vengeance®-Low-Profile-—-8GB-Dual-Channel-DDR3-Memory-Kit/p/CML8GX3M2A1600C9#tab-tech-specs
other sticks
https://www.corsair.com/ru/ru/?????????/????????/??????-??????/??????-??????-???????-??????????????????/Vengeance®-Low-Profile-Blue-—-4GB-Dual-Channel-DDR3-Memory-Kit/p/CML4GX3M2A1600C9B#tab-tech-specs
On the site i see identical specs, but cpu-z shows that sticks has different timings...
Setting lower mem freq doesn't help too.
I have 4 stick - 2x2GB and 2x4GB.
one sticks
https://www.corsair.com/eu/en/Categories/Products/Memory/High-Performance-Memory/Vengeance®-Low-Profile-—-8GB-Dual-Channel-DDR3-Memory-Kit/p/CML8GX3M2A1600C9#tab-tech-specs
other sticks
https://www.corsair.com/ru/ru/?????????/????????/??????-??????/??????-??????-???????-??????????????????/Vengeance®-Low-Profile-Blue-—-4GB-Dual-Channel-DDR3-Memory-Kit/p/CML4GX3M2A1600C9B#tab-tech-specs
On the site i see identical specs, but cpu-z shows that sticks has different timings...
Setting lower mem freq doesn't help too.