Lenovo Z61t - Manual (Page 60)

If you are unable to access these instructions or if you have difficulty
replacing a CRU, you can use either of the following additional resources:
v The Online Hardware Maintenance Manual and Online Videos available
from the Support Web site
http://www.lenovo.com/think/support/site.wss/document.do?lndocid
=part-video
v The Customer Support Center. For the telephone number of the Support
Center for your country or region, see “Worldwide telephone list” on page
46.
52 ThinkPad ® Z61 Service and Troubleshooting Guide