On a Thinkpad T61 I had to program bios with programmer. Everything is fine but in bios posts internal MAC is ff ff ff ff ff ff. Thinkpad Hardware Maintenance Disk does not have dmi tools for loading MAC address back onto chip unlike hp dmi tools which have the option. I have original MAC address on the bottom of my laptop. Could someone please tell me how to update MAC? (It is a Intel PXE 1.2.45 version- It is controlled by system bios) Suggestions like location where it is stored in uncompressed bios FL1 or LOM file to add to phlash16, Thinkpad HMM dmi tools, etc.