dd if=debian-7.0.0-amd64-DVD-1.iso of=/dev/sdX

BIOS → Main → Boot Features → UEFI Boot

BIOS → Boot → move "USB CD" above "ATA HDD0: AFAYA MDS 1GB"

... on Wheezy:

adding ThecusOS to grub

menuentry 'Thecus Normal' --class gnu-linux --class gnu --class os {
        insmod gzio
        set root='(hd0,1)'
        linux /boot/bzImage ro root=/dev/ram0 max_loop=210 console=ttyS1,115200n8 mem=4G
        initrd /boot/ramdisk
}
menuentry 'Thecus Backup' --class gnu-linux --class gnu --class os {
        insmod gzio
        set root='(hd1,1)'
        linux  /boot/bzImage ro root=/dev/ram0 max_loop=210 console=ttyS1,115200n8 domb
        initrd /boot/ramdisk
}

controlling fan

echo "it87 fix_pwm_polarity=1" >> /etc/modules
rmmod it87
modprobe it87 fix_pwm_polarity=1

apt-get install fancontrol lm-sensors hddtemp
pwmconfig # follow instructions
invoke-rc.d fancontrol start