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    RAM timings in Bios?

    Discussion in 'Alienware M15x' started by bartuc66, Aug 5, 2016.

  1. bartuc66

    bartuc66 Notebook Enthusiast

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    Is it possible to adjust the CAS timings for RAM in the bios? I believe I am unable to do so with the RAM I have installed. So I was wondering if the M15X even has the capability to do so or if I am just not using the advanced bios options correctly.

    One a secondary note, does any RAM manufacture produce laptop DD3 memory with either 1600 cas 8 timings or 1333 cas 7 timings? I was browsing different manufactures and the best I was able to find was a DDR3 laptop 1600 with cas 8 timings. I also had difficult time finding such timings for the Desktop versions. Are those latencies just hard to manufacture for? I am just curious and have no actual interest in trying upgrade my RAM unless doing so would actually increase the performance of my system.

    So hypothetically speaking, what would be the absolute "best" RAM that can be equipped on the Alienware M15x be? This includes adjusting the performance of any RAM through bios (if such a thing is even possible).
     
    bartuc66, Aug 5, 2016
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  2. kosti

    kosti Notebook Virtuoso

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    The fastest speed supported is DDR3 1333MHz in the M15X. Higher speed DDR3 RAM should work, but it will run at 1333MHz. Not sure about RAM timings being adjustable but there is an unlocked A09 BIOS that you can try. It may have timing adjustments. Not sure how much of a performance gain you'll see if you can adjust timing, but you're going to want to run some stability tests after making such changes, if possible.

    I'm currently running Hynix 16GB 1600MHz RAM which runs of course at 1333MHz speeds and CAS 9. It has been stable for months now and I honestly don't notice any difference with the CAS 8 RAM I had previously.

    Here's a thread with the unlocked A09 BIOS. Use it at your own risk.

    https://www.bios-mods.com/forum/Thread-Alienware-M15x?page=4
     
    kosti, Aug 6, 2016
    #2