Kingston DDR3 HyperX 1800mhz RAM on an Asus P7P55D?

Dear community,

I've recently purchased an awesome i5+P7P55D+arctic 7 freezer pro bundle from one of my friends, but oddly enough, he wasn't able to sell me his RAM.... However, I managed to pick up a Kingston 2GB DDR3 HyperX 1800mhz 2GB stick for an unbeatable and unresistable price, but upon doing some research and a bit of reading on the manufacturer's website, the Asus P7P55D doesn't seem to state memory support of 1800mhz RAM (only 1600 or 2200?).

Here is Kingston's product page for the RAM: http://www.valueram.com/datasheets/KHX1800C8D3K2_4G.pdf
The mobo (Asus' site seems down for me): http://www.newegg.com/Product/Product.aspx?Item=N82E16813131404

Will the RAM still work with the motherboard? If so, would it still work if I was to stick another 2GB HyperX on it, but at 1600mhz instead? Many thanks in advance.
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  1. First, without some BIOS work, the i5 only "supports" 1333MHz ram. Also, it can only use 1.65V ram (that ram says 1.7 to 1.9V). However, this is fine because you can easily run the ram under spec. It will default to some low (1066 or 1333) speed and 1.5V for compatibility. You could leave it there, or try a setting like 1333, 8 8 8 24, and 1.5-1.65V. You may have to do a lot of guess and check (and BIOS resets) but you should be able to get it working. As you can see, I am running my 1600 speed ram at 1333 and at tighter timings and lower voltages, so it is quite doable.
  2. Hi newcomer and welcome to the Tom's hardware forum.

    For the 1800MHz you need set all the specifications of your RAM manually in the BIOS, the CL and voltage. And as EXT64 says, the voltage is very high, even is the same voltage that DDR2 use.
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