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MTRR: CPU 0: SYSCFG[MtrrFixDramModEn] not cleared by BIOS, clearing this bit



I bought a used Dell Latitude D531 laptop on eBay.  I installed Debian to it.  I'm getting this error everytime on boot, and waking up out of suspend mode.  I would like to know how to fix or troubleshoot the problem.

Output of "dmesg |grep MTRR":
[    0.000000] [Firmware Warn]: MTRR: CPU 0: SYSCFG[MtrrFixDramModEn] not cleared by BIOS, clearing this bit
[    0.000000] MTRR default type: uncachable
[    0.000000] MTRR fixed ranges enabled:
[    0.000000] MTRR variable ranges enabled:
[    0.068000] [Firmware Warn]: MTRR: CPU 0: SYSCFG[MtrrFixDramModEn] not cleared by BIOS, clearing this bit
[    0.156611] [Firmware Warn]: MTRR: CPU 1: SYSCFG[MtrrFixDramModEn] not cleared by BIOS, clearing this bit
[    0.169782] mtrr: your CPUs had inconsistent variable MTRR settings
[    0.169787] mtrr: probably your BIOS does not setup all CPUs.
[    0.169789] mtrr: corrected configuration.

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