I downloaded FreeNAS-9.2.1.9-RELEASE-x86.img and used Win32 Disk Imager to write the image file to a SanDisk 16 GB USB memory stick. I then rebooted my computer and received the following output:
Hardware:
* Motherboard: HP P4SD
* CPU: Pentium 4 processor 3 GHz
* RAM Size: 4 GB DDR/400 MHz/Dual Channel
* Hard Drives: Quantity 1, Western Digital WD800LB-60DNA1, no RAID
Attempting Boot From USB Device
F1 FreeBSD
F2 FreeBSD
F5 Drive 1
F6 PXE
Boot: F1
error 4 lba 158492101
Invalid format
FreeBSD/x86 boot
Default: 0:ad(0,a)/boot/kernel/kernel
boot:
error 4 lba 3239393099
Invalid format
FreeBSD/x86 boot
Default: 0:ad(0,a)/boot/kernel/kernel
boot:
F1 FreeBSD
F2 FreeBSD
F5 Drive 1
F6 PXE
Boot: F1
error 4 lba 158492101
Invalid format
FreeBSD/x86 boot
Default: 0:ad(0,a)/boot/kernel/kernel
boot:
error 4 lba 3239393099
Invalid format
FreeBSD/x86 boot
Default: 0:ad(0,a)/boot/kernel/kernel
boot:
Hardware:
* Motherboard: HP P4SD
* CPU: Pentium 4 processor 3 GHz
* RAM Size: 4 GB DDR/400 MHz/Dual Channel
* Hard Drives: Quantity 1, Western Digital WD800LB-60DNA1, no RAID