Rank: 1Rx8 (Single Rank x8 based). GIGABYTE GA-990FXA-UD3 R5. GIGABYTE GA-990XA-UD3. ECC Type: ECC Unbuffered. Capacity: 4GB. Kit Capacity: 4GB. Your computer loads a program or file you select from the hard drive in to your computers RAM, then it will access each bit of data from there.
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