Bottom of [31:24] IO space
Possible values of an option:
From  to [FF]
The option description:
Together with an option [Auto Optimize Bottom IO] specifies layout of address space of expansion cards. If to be more exact, this option sets seniors — with 24 on 31 — address bits with which the address space of expansion cards begins. In most cases it is possible to leave value offered by default (normally [D0] — all addresses will look like D0xxxxxx), to be engaged in optimization there is a sense, only if at you is installed 4 and more Gbytes of a random access memory, but you for any reasons use 32 bit operating system. Then it is possible to try, gradually increasing value of an option, to transfer the beginning of address space of expansion cards as it is possible above, tracking that there were no conflicts. It increases the volume of a random access memory accessible to an operating system.
Other options identical to destination: