Ram speeds Question

speedrookie

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Feb 9, 2014
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So most MOBO's have there speed limitations in there specs.

3000(OC)/2800(OC)/2666(OC)/2600(OC)/2400(OC)2200(OC)/2133(OC)/2000(OC)/1866(OC)/1600/1333/1066

as for this one it says 1600/1333/1066 non Over Clocked.

Now does this mean i can not just buy 3000Mhz RAM or is that only what it can be running Over Clocked
 
Solution
DRAM is dependent on what the MC (memory controller) in the CPU can handle, a typical 4670K can handle up o 2133 (some 2400) with no real changes, to go higher it often takes a small OC to the CPU, which with the CPU running a little faster adds to the MC, another way to push the MC faster is to add voltage to the DRAM itself as well as to the MC, though this tends build up more heat, both in the DRAM and can unselttl the CPU a bit as more voltage being sent to MC, much easier and safer to do a slight OC to the CPU, i.e. again 4670K or 4770K can generally be OCed straight to 4GHz with nothing more than a CPU multiplier change, auto will handle the voltage as it basically already is set for it if turbo boost is on - which generally...

Gate9er

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Feb 15, 2012
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Well the reason why they define those speeds as OC is because most of the users buy 1600Mhz RAM and then overclock them to higher speeds. The price/performance ratio for buying 1600Mhz + RAM sticks is really ridiculous so no one is really bothered with them. Overclocked or not, the motherboard will still support those speeds.
 

Tradesman1

Legenda in Aeternum
What mobo? if 1600 is the highest listed it may well be a mobo that won't OC, and NO people don't buy 1600 and OC them to things like 3000, the OC indicates that a CPU OC may be required for DRAM to run at those freqs. DRAM is made and specced to a wide variety of freqs up through 3000+, and is made to run at that freq
 

Gate9er

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Feb 15, 2012
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Well I didn't say that anybody is overclocking their RAM to 3000Mhz.. I just said they overclock them to speeds higher than 1600Mhz. So is RAM frequency somehow depended on the CPU??
 

Tradesman1

Legenda in Aeternum
DRAM is dependent on what the MC (memory controller) in the CPU can handle, a typical 4670K can handle up o 2133 (some 2400) with no real changes, to go higher it often takes a small OC to the CPU, which with the CPU running a little faster adds to the MC, another way to push the MC faster is to add voltage to the DRAM itself as well as to the MC, though this tends build up more heat, both in the DRAM and can unselttl the CPU a bit as more voltage being sent to MC, much easier and safer to do a slight OC to the CPU, i.e. again 4670K or 4770K can generally be OCed straight to 4GHz with nothing more than a CPU multiplier change, auto will handle the voltage as it basically already is set for it if turbo boost is on - which generally always is, have no idea why anyone would turn it off
 
Solution