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Ram Overclock

post #1 of 19
Thread Starter 
hey everyone, i would like to know a little about overclocking my ram, i currently have this one Corsair Core i7 Dominator 6GB PC12800 DDR3 RAM - Tri Channel, 1600MHz, 6144MB (3 x 2048MB) what do i need to do to overclock this ram it say 1600mhz and my bios allows me to get that number higher what does that mean? what should i set it to?
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post #2 of 19
I don`t really understand that question. If you got 1600ish RAM of course you have to up the frequency to overclock it. If your Bios allows you to change that value to sa 1866MHz you would have overclocked your RAM by 266MHz. Then you maybe have to raise the voltage for the RAM. You could also tighten the timings (later, if you found your desired frequency).
How far do you want to o.c. the RAM?
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post #3 of 19
Thread Starter 
Quote:
Originally Posted by Mr.Eiht View Post
I don`t really understand that question. If you got 1600ish RAM of course you have to up the frequency to overclock it. If your Bios allows you to change that value to sa 1866MHz you would have overclocked your RAM by 266MHz. Then you maybe have to raise the voltage for the RAM. You could also tighten the timings (later, if you found your desired frequency).
How far do you want to o.c. the RAM?
i want to overclock the ram to a stable clock i just re check my bios and the next number from 1600 is 2000, if i set it there i think it will be to much would it?
my volt on the ram is 1.65.

i am really new to OC the ram.
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post #4 of 19
When you increase the BCLK to increase the speed of the CPU, the memory also is increased. That's why we have a BCLK to memory ratio. Say the BCLK is set to 100 and your ratio is set to 1:1, this means the memory will also run at 100 in terms of speed (mhz) now let's run a 1:2 ratio. This means whatever the BCLK is, the memory will be double the speed and so on. By defualt, the memory runs at 1600mhz only if the CPU is at stock multiplyer and stock BCLK. You want to find a ratio that will allow a high overclock on the CPU but not overboard on your memory! I would try not to go about 1700mhz with your memory. The bios will tell you what the RAM is running at once you set the BCLK, Ratio and CPU multi speed to.

Good Luck
P.S. i would imagine your RAM is already overclocked as your CPU is overclocked, unless you are running a low ratio!

Go and download CPU-Z and find the memory tab. it will tell you the speed of the RAM. Whatever number is displays, double it for the normal amount. If your over 1700mhz, download memtestzx86, burn to CD and boot from it and let it run tests on the memory automatically for several hours. if you get no issues, your RAM is overclocked and stable

If your RAM is too low in terms of speed, change the BCLK to Memory Ratio. Play around with it and get a balanced setting.

I hope you find this useful

Edit: Maybe your RAM could handle higher than 1700mhz, i really don't know. Test it with memtestx86..
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post #5 of 19
Try to lower the BCLK and change the ratio again and see if you can get it down from 2000mhz!
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post #6 of 19
Thread Starter 
Quote:
Originally Posted by BradleyW View Post
When you increase the BCLK to increase the speed of the CPU, the memory also is increased. That's why we have a BCLK to memory ratio. Say the BCLK is set to 100 and your ratio is set to 1:1, this means the memory will also run at 100 in terms of speed (mhz) now let's run a 1:2 ratio. This means whatever the BCLK is, the memory will be double the speed and so on. By defualt, the memory runs at 1600mhz only if the CPU is at stock multiplyer and stock BCLK. You want to find a ratio that will allow a high overclock on the CPU but not overboard on your memory! I would try not to go about 1700mhz with your memory. The bios will tell you what the RAM is running at once you set the BCLK, Ratio and CPU multi speed to.

Good Luck
P.S. i would imagine your RAM is already overclocked as your CPU is overclocked, unless you are running a low ratio!

Go and download CPU-Z and find the memory tab. it will tell you the speed of the RAM. Whatever number is displays, double it for the normal amount. If your over 1700mhz, download memtestzx86, burn to CD and boot from it and let it run tests on the memory automatically for several hours. if you get no issues, your RAM is overclocked and stable

If your RAM is too low in terms of speed, change the BCLK to Memory Ratio. Play around with it and get a balanced setting.

I hope you find this useful

Edit: Maybe your RAM could handle higher than 1700mhz, i really don't know. Test it with memtestx86..
i had my cpu at 4.2 and my ram was 1682mhz now i was playing with the bclk and was trying to still have 4.2 but the ram at 1700 or 1800.....right?
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post #7 of 19
Thread Starter 
the closes i was able to set it playing with the bclk was at cpu at 4212mhz and ram 1876. should i see what happen?
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post #8 of 19
what ratio did you use when you ran at 4.2Ghz to get 1682?
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X79-GCN
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post #9 of 19
Quote:
Originally Posted by -javier- View Post
the closes i was able to set it playing with the bclk was at cpu at 4212mhz and ram 1876. should i see what happen?
Your memory will most likely be unstable. What CPU multi do you use? I might have a solution!
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X79-GCN
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post #10 of 19
Thread Starter 
Quote:
Originally Posted by BradleyW View Post
what ratio did you use when you ran at 4.2Ghz to get 1682?
sorry i meant to say 4.2 and ram 1603

cpu ratio 21.0 bclk freq 200
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SSD Corsair Force Series 3 120GB 500GB Window 7 Pro 64 bit SamSung 26' 1920x1200 
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