Ram Question

[croc1977]

http://www.gigabyte.us/Motherboard/GA-890FXA-UD5-rev-20#ov

old board but thinking upgrade to 16gb ram ....


but what does this means?

(Note 2) To reach DDR3 1866MHz or above, you must install two memory modules and install them in the DDR3_3 and DDR3_4 memory sockets.

so if ...( if only) i want to buy 1866 ram x4 only slot 3 and 4 can clock to 1866 while others is 1600?

 

[MrMundy]

http://www.gigabyte.us/Motherboard/GA-890FXA-UD5-rev-20#ov

old board but thinking upgrade to 16gb ram ....


but what does this means?




so if ...( if only) i want to buy 1866 ram x4 only slot 3 and 4 can clock to 1866 while others is 1600?

the mobo will auto down clock the rams to the highest speed it can run
i.e assuming u buy 4 sticks of ram running at 1866mhz, u install 4 sticks of ram into all 4 slots, because slot 1 and 2 cannot run higher than 1866mhz, all 4 rams will run at the highest speed slot 1 and 2 can run (should be 1333mhz based on the spec sheet)
if u want to run 16gb at 1866mhz, go buy 2 sticks of 8gb ram at 1866mhz

just fyi real world can't feel the difference between 1333mhz or 1866mhz... all same same 1, unless u running some server or some super software then maybe got difference..

btw 8gb should be more than enough... and if u really want to upgrade, get same brand same model safest

 

[Koenig168]

want to buy 1866 ram x4 only slot 3 and 4 can clock to 1866 while others is 1600?

Nope, all 4 sticks will be at the same 1600.