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Overclocking K CPU and RAM

post #1 of 2
Thread Starter 
Ok, I'm a newbie at overclocking. I used to think that overclocking a K CPUs (by increasing the multipliers) and RAM has nothing to do with each other. However, I came across this post,
http://www.extremetech.com/computing/157125-haswell-review-intels-core-i7-4770k-takes-over-the-pole-position/3
It said while Ivy Bridge could hit 4.6 – 4.7GHz on air, Haswell struggles to reach 4.5GHz. Memory clock speeds are dicey at this speed, with very few chips capable of hitting DDR3-1866 or higher
I'm confused, so please help me:
1- So with K CPU, you can just overclock it and RAM separately right? I mean I can overclock my RAM to 3000 MHz (Of course I won't do it) and keep my CPU at stock speed with no problem, right?
2- If I was right at 1 then why non-K CPU needs bus adjustment ?
3- With ta G.skill RAM like this
http://www.gskill.com/en/product/f3-10600cl8d-2gbhk
Tested Latency 8-8-8-21-2N
What does "2N" mean? Does it really important? Because on some ASUS mainboards, I see "1N", not "2N"
    
CPUMotherboardGraphicsRAM
i7-4770K @ 4.1GHz 1.155V GigaByte GA-Z87M-D3H  HD 7770 GHz Edition G.Skill 8GB RipjawX bus 2133 MHz 11-11-11-30 
Hard DriveCoolingOSPower
Kingston HyperX SSD 120GB DeepCool Gamer Storm Assassin Window 7 Ultimate 64 bit Thermaltake Lite Power 430W OEM 
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CPUMotherboardGraphicsRAM
i7-4770K @ 4.1GHz 1.155V GigaByte GA-Z87M-D3H  HD 7770 GHz Edition G.Skill 8GB RipjawX bus 2133 MHz 11-11-11-30 
Hard DriveCoolingOSPower
Kingston HyperX SSD 120GB DeepCool Gamer Storm Assassin Window 7 Ultimate 64 bit Thermaltake Lite Power 430W OEM 
  hide details  
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post #2 of 2
Quote:
Originally Posted by dongbin2696 View Post

Ok, I'm a newbie at overclocking. I used to think that overclocking a K CPUs (by increasing the multipliers) and RAM has nothing to do with each other. However, I came across this post,
http://www.extremetech.com/computing/157125-haswell-review-intels-core-i7-4770k-takes-over-the-pole-position/3
It said while Ivy Bridge could hit 4.6 – 4.7GHz on air, Haswell struggles to reach 4.5GHz. Memory clock speeds are dicey at this speed, with very few chips capable of hitting DDR3-1866 or higher
I'm confused, so please help me:
1- So with K CPU, you can just overclock it and RAM separately right? I mean I can overclock my RAM to 3000 MHz (Of course I won't do it) and keep my CPU at stock speed with no problem, right?
2- If I was right at 1 then why non-K CPU needs bus adjustment ?
3- With ta G.skill RAM like this
http://www.gskill.com/en/product/f3-10600cl8d-2gbhk
Tested Latency 8-8-8-21-2N
What does "2N" mean? Does it really important? Because on some ASUS mainboards, I see "1N", not "2N"

1. You overclock the CPU and mem separately, although an overclock on one may affect the stability of the other.
2. Non K CPU's have locked multipliers.
3. The 2N represents the Command Rate of the memory, which can be tweaked. You don't need to worry about this.
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