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RAM uograde issue, please help!

Last response: in Memory
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November 2, 2012 6:53:31 PM

Hello.

I have the -G.SKILL Ripjaws Series 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model F3-12800CL7D-4GBRH-

I want to add some more memory to my system (i5, hd4870, intel dp55wb, win8 64bit) and I do not find this kind of memory in stores.
my question is what other kind of memory from the same series I can use?

For example, will -G.SKILL RIPJAWS F3-12800CL9D-8​GBRL 8GB 2x4 DDR3 1600 - be good?

And what the different between -F3-12800CL7D-4GBRH and F3-12800CL9D-4GBRL?

Thanks.

More about : ram uograde issue

November 10, 2012 9:29:26 PM

Those memory modules have two completely different timings. The First one is CL 7, which is 7-7-7-24 timing and the other one is 9-9-9-24. They are both at the same speeds (1600 Mhz) but if you use them as is, they will not work for each other as one uses a aster time then the other. When considering using more memory channels, or expansion, you should always use identical RAM.As far as I can tell however, these modules are identical other than the timing, and even though the chipsets listed on the manufacturers websites do no match, it should not matter. If you were to use the two different types, you would have to manually input identical timings into the bios to the slower RAM's speed so that they would work.
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November 11, 2012 9:08:31 AM

Thanks.
Can you suggest me something please?

When I asked this q in other forums they told me that the only thing I need to care about is that the new memory will be a ddr3 1600 MHz.
Is it true?

Thanks.
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!