I'm not sure wich TPM chip they use, but that is not relevant. Because I need answer for any TPM chip Lenovo uses.
We have some customers that use Bitlocker with PIN, and is wondering how many times can you try before the TPM is not answering more before a certain time?
From this site: http://technet.microsoft.com/en-us/library/ee449438%28WS.10%29.aspx#BKMK_LongEncrypt from Microsoft they recommend to ask this question:
Is there a place where I can find this information?