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Thread: RAM issue at First Boot?

  1. #1
    Join Date
    Sep 2012
    Hamilton, ON

    Default RAM issue at First Boot?

    I'm probably asking a silly question....but here goes.
    At first boot up, everything goes well aside from the fact that the BIOS screen tells me the 8 GB of Corsair Vengeance 1866Mhz memory is set to 1333Mhz. If I change the frequency to 1866, the system becomes unstable, and freezes up. Is the memory bad/broken or am I doing something wrong? The operating system is not yet installed, but it will be Windows 7, 64 bit.
    Here is what its installed on:
    AMD X8 FX8150
    ASUS M5A99X Evo

    Is this something that will work properly once the OS is installed?
    Please help! Thanks!

  2. #2
    Join Date
    Aug 2007
    South Carolina


    Make sure the ram voltage is set to 1.5 volts. Other than that, I'm not sure.
    I found this on the Asus website for your motherboard.
    "* Due to CPU spec., AMD 100 series CPUs support up to DDR3 1066MHz. With ASUS design, this motherboard can support up to DDR3 1333MHz."
    My Rig:
    Corsair Obsidian 450D | EVGA SuperNova G3 650W | Asus Prime Z270-A | Intel i7-7700K | Cryorig H7 | G.Skill TridentZ 16gb (2x8gb) DDR4 3200 | MSI GTX1070 Gaming X 8G | Crucial MX300 SSD | Windows 10 Pro 64-bit | Asus VW246H

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