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1333 MHz to 1600 MHz

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August 9, 2010 4:00:08 PM

I just put together a new build. The RAM I am running is:
G.SKILL Ripjaws Series 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600

My motherboard has it running at 1333MHz by default, and I want to push it up to the RAM's standard of 1600 MHz. I have never done this before, and I was hoping someone could guide me through the process of how to change it in BIOS.

Thanks

More about : 1333 mhz 1600 mhz

a b } Memory
a c 100 K Overclocking
August 9, 2010 4:33:30 PM

Please list your specs, as the method is different depending on your set up.
What CPU and motherboard, specifically?
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August 9, 2010 6:09:42 PM

CPU: AMD Phenom II X4 955

Motherboard: MSI 890GXM-G65

BIOS: American Megatrends Version 1.6
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a b } Memory
a c 100 K Overclocking
August 9, 2010 6:37:46 PM

Ok well your FSB is probably 133, so the easiest way is to just bump that up to 160. You'll then have to make sure you set the RAM to the right voltage and timings and also by boosting the FSB it will OC the CPU a bit, so you'll also have to make sure that everything is good in that regards as well. I'm not sure how much leeway you have in the FSB:RAM ratio, I'm assuming it tops at 1:10 but if it goes higher you can set a lower FSB.

The other thing is, let's say your ram is rated 1600mhz CL8 (CL8 is the timings, ie: 8-8-8-24). You can run it at 1333mhz CL6 or CL7 (I know 1400mhz CL7 would work, so you might shave another notch off the timings at 1333mhz) to do this just make sure to run the ram at it's proper voltage (usually 1.65V) and then you won't need to OC the CPU at all.
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August 9, 2010 8:42:44 PM

FSB is going to be 200 stock....you should be able to change your FSB:RAM ratio to 1:4 to get it to 1600 (with will be at like 1:3.33 or something right now)
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August 9, 2010 8:44:33 PM

you then need to up your voltage and maybe loosen your timings to get it to run stable if you are OCing it above rated...but if it is rated at 1600, you should be able to set your ram at 1600 and the timings at the rated timings and the voltage at the specified voltage.
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August 9, 2010 8:44:50 PM

it may help to tlel us what ram you have too
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August 9, 2010 9:05:51 PM

so it should work at the timings it says (9-9-9-24-2N; 1.5 Volts).
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August 9, 2010 9:09:54 PM

But if you can get it to run at 8 or 7 CL at 1333 timings, I might suggest that because it seems that you will get better performance out of the tighter timings than you will from the higher clock
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