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

I'm getting this message on boot. Does anybody know how to fix it?

dmesg output:

[ 102.138276] [Firmware Warn]: MTRR: CPU 0: SYSCFG[MtrrFixDramModEn] not cleared by BIOS, clearing this bit

[ 102.151634] [Firmware Warn]: MTRR: CPU 1: SYSCFG[MtrrFixDramModEn] not cleared by BIOS, clearing this bit

[ 0.000000] MTRR default type: uncachable

[ 0.000000] MTRR fixed ranges enabled:

[ 0.000000] 00000-9FFFF write-back

[ 0.000000] A0000-BFFFF uncachable

[ 0.000000] C0000-CFFFF write-protect

[ 0.000000] D0000-EFFFF uncachable

[ 0.000000] F0000-FFFFF write-protect

[ 0.000000] MTRR variable ranges enabled:

[ 0.000000] 0 base 0000000000 mask FF80000000 write-back

[ 0.000000] 1 base 0078000000 mask FFF8000000 uncachable

[ 0.000000] 2 base 0077F00000 mask FFFFF00000 uncachable

[ 0.000000] 3 disabled

[ 0.000000] 4 disabled

[ 0.000000] 5 disabled

[ 0.000000] 6 disabled

[ 0.000000] 7 disabled

Output of /proc/mtrr:

reg00: base=0x000000000 ( 0MB), size= 2048MB, count=1: write-back

reg01: base=0x078000000 ( 1920MB), size= 128MB, count=1: uncachable

reg02: base=0x077f00000 ( 1919MB), size= 1MB, count=1: uncachable