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Corsair 4GB DDR3 1600Mhz Vengence RAM shows 1333Mhz in BIOS

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August 29, 2012 2:05:42 PM

I have set up a CPU with i5 3570K, P8Z77V-LX Board, Corsair 4GB vengence RAM, Asus GT560 Graphics, Corsair 500W PSU, ITB HDD.

The Corsair Vengence 4GB RAM shows 1333Mhz speed on the BIOS which I checked for the first time, remembering its a 1600Mhz RAM not sure how to enabled it to its original speed.

Is the XMP provile needs to be changed or it can be done by only changing the DRAM voltage ?
August 29, 2012 3:49:33 PM

The 1333MHz is probably the standard JDEC for the memory. You need to enable XMP in the BIOS and the memory will automatically adjust to its XMP profile. Alternatively, you can manually adjust the speed, timings, and voltage.

Either way, you have to do a little adjusting in the BIOS to get your memory to run at its full rated speed.
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August 29, 2012 4:07:32 PM

msathis4 said:
Is the XMP provile needs to be changed or it can be done by only changing the DRAM voltage ?

Yep, BIOS AI Overclock Tuner -> XMP, by default use the Profile 1 (F10 Save & Exit = Yes) which will set the DRAM Frequency, CAS Timings, DRAM Voltage and some kits also set the VCCIO/VCCSA Voltage.
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September 22, 2012 1:15:42 PM

Hi, I have the same problem. Will it mean that the RAM will overclock and it actually is 1333 mhz? Do I risk anything with the overclock?
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