Hi Rudolf, "Rudolf" <drivers.be-hold@xxxxxxxxxxxx> wrote: > So I take it I should find that file and simply remove the switch > statement? Yes, that should work, it's in src/system/kernel/arch/x86/arch_cpu.c, line 455ff. :-) What's your exact system configuration, btw? > BTW: Cool we have MTRR support! I'll try it asap :) I haven't added VIA support yet, due to lack of testing possibilities. You had commented out quite some things in the MTRR driver you did, I didn't want to take them over without further investigation :-) Maybe you could add (or temporarily remove) a check for VIA processors in src/add-ons/kernel/cpu/x86/intel.cpp, line 138-139 and see if it just works there? Maybe I should just try to get their processor manual from somewhere, though :-) Bye, Axel.