Lenovo BIOS access key codes and BIOS access procedures. (formally IBM)

If your model is not listed try the link to Lenovo Support. Lenovo Support Web Site
ThinkPad Model Action
G40, G41, R40, R40e, R50/e/p, R51, T40, T40p, T41, T41p, T42/p, T43/p, X40, X41, X41 Tablet Press the blue Access IBM button when the message "To interrupt normal startup, press the blue Access IBM button" is displayed to enter the ThinkVantage Productivity Center, then select Start setup utility to open the BIOS Setup Utility.
Z60m/t, R51e Press the blue ThinkVantage button when the message "To interrupt normal startup, press the blue ThinkVantage" is displayed to enter the ThinkVantage Productivity Center, then select Start setup utility to open the BIOS Setup Utility.

240 series
390 series
570 series
i Series 1200
i Series 1300
i Series 1400
i Series 1500
i Series 172x
A20, A21, A22, A30, A31
R30, R31, R32,
S30, S31
T20, T21, T22, T23, T30

X20, X21, X22, X23, X24, X30, X31
TransNote

Pressing F1 during startup when the ThinkPad logo is displayed.

Older ThinkPad Systems 

ThinkPad model Action
310, 315
310E/ED
315ED
BIOS Utility is entered by holding F2 while the ThinkPad logo is displayed after power on.
365C/CS
365CD/CSD
365E/ED
Enter setup by pressing CTRL+Alt+F11 from a DOS prompt (you must be in DOS mode, not a DOS session under Windows).
365X/XD With the unit powered off, hold the F1 key and power the unit on. Keep F1 held down until Easy setup appears
360, 355 series
380, 385 series
560 series
600 series
701C/CS
75x series
76x series
770 series
With the unit powered off, hold the F1 key and power the unit on. Keep F1 held down until Easy setup appears.

Note: On the TP 701, you can also access the Configuration area on BIOS by pressing the Fn+F1 keys.
500, 510 Enter setup by pressing CTRL+Alt+F3 from a DOS prompt (you must be in DOS mode, not a DOS session under Windows).
700/C
720/C
Pressing CTRL+ALT+INS when the cursor moves over to the upper right hand side of the screen right after the memory count.
710T
730T
Hold the suspend/resume switch while powering on the computer.
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