1 Reply Latest reply on Jun 19, 2013 8:29 PM by FaalKorum

    Corrupted BIOS screen/POST code 40 after memory upgrade

    FaalKorum

      Hey everyone,

       

      A couple days ago, I upgraded my memory from a kit of 16gb (4x4) G.Skill DDR3-1600 to a set of 32gb (4x8) Kingston HyperX DDR3-2400 and got some strange graphical corruption on my board splash screen (see below), plus a code "40" after booting into the OS under most circumstances. Apart from these two symptoms, I can't perceive any kind of performance issue or instability. The system does recognize all 32gb of memory, however CPU-Z has a blank memory timing tab.

       

      System:

      i7-3930k

      32gb DDR3-2400

      DX79SR

      Windows 8 Home

       

      Here's what I've tried so far:

      Reinstalled the old memory: no change in POST screens. Didn't boot to Windows to see if code appeared.

      Reinstalling the latest BIOS/downgrading to previous version: no change.

      Changed the overclock presets: POST screen was still screwy, but the code 40 DID NOT appear on the "Default" overclock preset. 1.00 and 1.25 presets still throw 40.

      Manually selecting board memory 1666mhz/Kingston 2133mhz XMP profile: System wouldn't complete POST.

       

      IMG_20130618_194326[1].jpg