Need advice on testing/overclocking Corsair RAM


I have an i7 MSI 55 motherboard, that has run 2 sticks of Corsair 2gb DDR3 1600 1.65v XMS3.I just bought on sale at Frys 2 Corsair 4gb DDR3 VengenceLP 1333 1.5v Ram (CMX8GX3M2A1333C9).

I read a lot of complaints about this ram on Amazon.

So far I just installed them with the other two dimms. Things are running fine. I have 15 days to return if there are problems.

1) I'd like to test them with MEMTEST+. Should I test them with my old RAM or should I just have the two new installed? I'll ge gone most of the day, is it okay to leave it running for 8 hours?

Should I run any other tests?

2) My old Ram was 1600Mhz, and this is 1333Mhz. In my start-up I noticed I was running at 1333.

Will there be much of a speed difference between 1333 and 1600?

Should I overclock the new ram to 1600?

How should I do that?

I just want to be thorough that this is good ram.

My after rebate cost for the 8gb is $25. (I'm poor right now, so its cheap RAM or no new ram unfortunately)

Thanks for any advice.
4 answers Last reply
More about need advice testing overclocking corsair
  1. Well, check this first.

    There is virtually no gain in performance

    RAM speed comparison - We're looking at a less than 2% difference from the fastest to the slowest.

  2. U have to go in the BIOS and overclock it there.

    U have probably second gen. Sandy Bridge and it runs native @ 1333MHz.

    So, BIOS is your answer.
  3. Whats your mobo model?

    Whats the CPU model?
  4. i7 860 and MSI P55-GD55 Motherboards

    So I wont worry about overclocking 1333 is fine. But any tips on testing the new ram for defects within my return period?
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