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z77 chipset questions
Hello i just bought a new pc with this parts :
psu: Corsair Builder Series CX600 V2 600W 12cm Fan 80+ Bronze CP-9020048-EU
gpu: Gigabyte ATI Radeon HD 7850 2GB GDDR5 GV-R785OC-2GD
ssd: Samsung 830 Series 128GB 2.5" Sata III Basic Drive MZ-7PC128B/WW
mobo : Gigabyte Z77-D3H
cpu : Intel Core i5-3570K 3.40GHz 6MB BX80637I53570K
ram : Corsair Vengeance 8GB (2x4GB) DDR3 1600MHz (PC3 12800) CMZ8GX3M2A1600C9B
As you can see the ram is 1600mhz and i had read that z77 and 3570k supports up to 1600mhz.
But when i enter the bios its says that the memory frequency is 1333mhz.
Can i change the memory multiplier so that i can get the 1600mhz ? or i did something wrong when intalled the memory ?
And can you tell about the AHCI mode ? its recomended to use it ? or not? and in what its help ? ( i also have one old hdd 160 gb as a second hard drive)