thunderslainer :
luketexas :
Hi, first of all where have you seen 800mhz RAM advertised? Windows will show your 1600MHz RAM operating at about 800MHz, but 800MHz RAM hasn't existed since DDR2..
The faster the RAM speed, the better. Your system supports DDR3/DD3L 1600/1333/1066 non-ECC, un-buffered memory upto 16GB capacity.
If you need 16GB, then get 16GB @ 1333 or 1600 MHz. If only 8GB then get 8GB RAM @ 1333 or 1600MHz. The faster the speed, in theory the faster the RAM operates.
Oh really ? So my windows is showing me that i have 800 mhz but i actually have 1600?
Do you have a SINGLE STICK of memory?
A "1600MHz" stick of memory provides only HALF the bandwidth of memory to the CPU that a "1600MHz" kit does with two sticks of memory that are setup in Dual Channel.
If you have a single stick you should get another, IDENTICAL stick of memory then see the motherboard manual for the correct slots to use with two sticks.
CPUZ (from CPUID) for example on my system (2133MHz DDR3 memory) shows:
Memory-> Channel-> DUAL, and
Memory-> Dram Frequency-> 1067MHz
That is correct as it's reporting one stick. If it reported SINGLE though then adding another stick would again double the memory bandwidth (and "800MHz" is not enough for an i7-4770 in many situations).
Task Manager in Windows however shows 2133MHz. Also correct as it's reporting a different way. (though I bought another 2x4GB kit for a different PC of the EXACT same model but at different time and Windows shows 1866MHz even though it's actually 2133Mhz and tests show it's 2133MHz.)
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