Supported Boot Devices

The following tables headings shell designate the following meanings...

• Internal FD = Internal/Ultrabay Diskette ("Floppy") drive (also called "Legacy FDD")
• Internal CD = Internal/Ultrabay CD/DVD(-R/-RW/-RAM) drive
• Network = any type of network boot support (such as PXE)
• Cardbus = any memory device connected via the PCMCIA/CardBus port
• USB HD = any hard drive/flash drive/pen drive connected via the USB port
• USB FDD = Diskette ("Floppy") drive connected via the USB port
• USB CD = CD/DVD(-R/-RW/-RAM) drive connected via the USB port
• FireWire = any memory device connected via the FireWire (i.Link/IEEE 1394) port

The fields should be filled with one of the following:

•  ? = unknown / untested
• yes = supported (may be selected from the BIOS)
• no = not supported (BIOS incapable of booting to this type of device)
• part = partially working (configuration not retained on reboot/requires firmware workaround/only on some devices/USB1 only). Please add footnote/link documenting the specifics.¹
• v#.## = only with BIOS versions ≥ #.##

Model	Internal FD	Internal CD	Network	CardBus	USB HD	USB FDD	USB CD	FireWire HD
Numbered Series
570	?	yes	?	?	?	?	?	no
570E	?	yes	?	?	?	?	?	no
600	?	yes	?	?	?	?	?	no
600E	?	yes	?	?	?	?	?	no
600X	?	yes	?	?	?	?	?	no
755CD	?	?	?	?	?	?	?	no
755CDV	?	?	?	?	?	?	?	no
755CV	?	?	?	?	?	?	?	no
755CX	?	?	?	?	?	?	?	no
770	?	?	?	?	?	?	?	no
770E	?	?	?	?	?	?	?	no
770X	?	?	?	?	?	?	?	no
770Z	?	?	?	?	?	?	?	no
A Series
A20m	?	?	?	?	?	?	?	?
A20p	?	?	?	?	?	?	?	?
A21e	?	?	?	?	?	?	?	?
A21m	?	?	?	?	?	?	?	?
A21p	?	?	?	?	?	?	?	?
A22e	?	?	?	?	?	?	?	?
A22m	?	?	?	?	?	?	?	?
A22p	?	?	?	?	?	?	?	?
A30	?	?	?	?	?	?	?	?
A30p	?	?	?	?	?	?	?	?
A31	?	?	?	?	?	?	?	?
A31p	?	?	?	?	?	?	?	?
G Series
G40	?	?	?	?	?	?	?	?
G41	?	?	?	?	?	?	?	?
R Series
R30	?	?	?	?	?	?	?	no
R31	?	?	?	?	?	?	?	no
R32	?	?	?	?	?	?	?	?
R40	?	?	?	?	?	?	?	?
R40e	?	?	?	?	?	?	?	no
R50e	?	?	?	?	?	?	?	no
R50p	?	?	?	?	?	?	?	no
R51	?	yes	?	?	?	?	?	?
R52	?	?	?	?	?	?	?	?
T Series
TransNote	no	no	yes	no	?	?	yes	no
T20	?	?	?	?	?	?	?	no
T21	yes	yes	yes	no	no	no	no	no
T22	?	?	?	?	?	?	?	no
T23	yes	yes	?	?	?	?	?	no
T30	yes	yes	yes	?	?	yes	?	no
T40	?	?	?	?	?	?	?	no
T40p	?	?	?	?	?	?	?	no
T41	?	?	?	?	?	?	?	no
T41p	yes	yes	yes	?	?	yes	?	no
T42	?	?	?	?	?	?	?	no
T42p	?	yes	?	?	yes	?	?	no
T43	?	?	?	?	?	?	?	no
T43p	?	?	?	?	?	?	?	no
X Series
X20	yes3	yes3	?	?	?	?	?	no
X21	yes3	yes3	?	?	?	?	?	no
X22	yes3	yes3	yes	?	?	yes	?	no
X23	yes3	yes3	?	?	?	?	?	no
X24	yes3	yes3	?	?	?	?	?	no
X30	?	yes	?	?	part2	?	?	?
X31	?	?	?	?	?	?	?	?
X32	?	?	?	?	?	?	?	?
X40	?	?	?	?	?	?	?	no
X41	?	?	?	?	?	?	?	no
X41 Tablet	?	?	?	?	?	?	?	no

FOOTNOTES [Δ]

1. Note specific partial functionality of ThinkPads here.
2. Choosing USB Boot and booting with a USB flash drive plugged in makes boot procedure extremely long (1m30 just to pass the IBM splash screen). However, it ends up booting the OS in the USB drive (assuming one is indeed present).
3. Internal CD/FD means the ones in the UltraBase for X series models.