This is a Lenovo Thinkpad t61, where would the bios chip be? Why you ask? To reset the password : r/computers
IBM thinkpad t61 bios hacking [Sitemap] - Digital Kaos
Synergy Digital CMOS/BIOS Battery, Works with IBM ThinkPad T61 CMOS/BIOS, (Li-Ion, 3V, 200 mAh) Ultra High Capacity, Compatible with Evesham 02K6541 Battery - Walmart.com
Lenovo T61 Boot Menu || how to Lenovo T61 Pen Drive Boot ..!! - YouTube
Unlocking the ThinkPad T61 with Middleton's BIOS - YouTube