2–4 DDR3 slots (depending on specific revision), supporting up to 16GB.
Click on "Update" in the left-hand menu. If a BIOS update is available for your specific hardware ID, it will appear under the "System BIOS Update" section. samsung b75s1 bios free
Native USB 3.0 and SATA III (6Gb/s) support provided by the B75 chipset. How to Get the Latest BIOS Update samsung b75s1 bios free