FreeBSD Handbook
: PC Hardware compatibility
: Core/Processing
: * Memory
Previous: CPUs/FPUs
Next: * BIOS
12.3.3. * Memory
The minimum amount of memory you must have to install FreeBSD is 5 MB.
Once your system is up and running you can
build a custom kernel that will use less memory.
If you use the boot4.flp you can get away with having only 4 MB.
FreeBSD Handbook
: PC Hardware compatibility
: Core/Processing
: * Memory
Previous: CPUs/FPUs
Next: * BIOS