Originally Posted by unekmike
oh ok i see. and will these sticks be compatible with my mother board and processor? i am using an AMD A10 5800k trinity 3.8ghz
and the ASRock FM2A85X Extreme6 FM2 AMD A85X (Hudson D4) SATA 6Gb/s USB 3.0 HDMI ATX AMD Motherboard
will this work properly? and will i be able to OC the sticks. this motherboard supports RAM that is up to 2600. all i need is the 2133 but i heard that some boards are set to 1600 by default. so since im going to buy 2133 id like to get that much out of it.
i dont want to spend the money for a 2133 kit if im only going to get 1600 lol
**ALL** DDR3 motherboards will only AUTO default to DDR3-1600 CL11 max. For anything higher, you must enable the DOCP./EOCP enhanced performance profile in order for the motherboard to automatically detect and configure memory settings in BIOS. Otherwise, if you do not enable it, or if the motherboard was not designed with the memory, you must manually input DRAM Frequency, timings, and voltage in BIOS. Depending on CPU capabilities, for DDR3-2133, you may need to boost A/CPU-NB Voltage to boost the memory controller. Especially 16GB+, the A/CPU memory controller will be overloaded, thus needing more voltage to be able to stabilize DDR3-2133 RAM. Once you do that, the system will be fast and smooth.
Again, if you purchase RAM better than DDR3-1600, you should NEVER expect it to automatically run at the the rated specifications unless you have the enhanced performance profile enable in BIOS. This is a common misconception people have, thinking performance RAM will just boot at the high speed values. FALSE.
Side note: motherboards may state DDR3-2400++, but that is for extreme overclocking. First, a very good CPU that is tested for the high frequency is necessary, and overclocking experience is necessary. More voltage boosting is required, so simply because the motherboard says it can support DDR3-2600, DDR3-2800, doesn't mean you can just buy RAM, put it in, and BAM fly away into gaming. Extreme frequency is not easy to achieve.