Update the serial number of the system using the ASU (see below)
IBM article on how to use the utility:
http://systemx.lenovofiles.com/help/index.jsp?topic=%2Fcom.lenovo.sysx.7147.doc%2Fnn1en_t_pdch6updatebiosdata.html&cp=0_1_15_3_6 Link for the download which also has instructions (up to version 9.63): https://www-947.ibm.com/support/entry/portal/docdisplay?lndocid=tool-asu
If you are looking for ASU for new Lenovo Products, please refer to the following link: http://www.ibm.com/support/entry/portal/docdisplay?lndocid=LNVO-ASU
To change the serial number information, use the following syntax:
ASU set SYSTEM_PROD_DATA.SysInfoSerialNum SN_info
where SN_info is the serial number of the system.
ASU set SYSTEM_PROD_DATA.SysInfoSerialNum 1234567