![So... on my t430 i just found this on my 4mb bios chip and i have no clue of how to clean it neither what it is. Any help appreciate it... : So... on my t430 i just found this on my 4mb bios chip and i have no clue of how to clean it neither what it is. Any help appreciate it... :](https://preview.redd.it/9vmwketwb4d41.jpg?auto=webp&s=8b58cb7c8d69487c6ec8d5a4e21e4e573679618e)
So... on my t430 i just found this on my 4mb bios chip and i have no clue of how to clean it neither what it is. Any help appreciate it... :
![Amazon.com: Lenovo Thinkpad T430 Built Business Laptop Computer (Intel Dual Core i5 Up to 3.3 Ghz Processor, 8GB Memory, 320GB HDD, Webcam, DVD, Windows 10 Professional) (Renewed) : Electronics Amazon.com: Lenovo Thinkpad T430 Built Business Laptop Computer (Intel Dual Core i5 Up to 3.3 Ghz Processor, 8GB Memory, 320GB HDD, Webcam, DVD, Windows 10 Professional) (Renewed) : Electronics](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T2/images/I/51XHLaApHPL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Lenovo Thinkpad T430 Built Business Laptop Computer (Intel Dual Core i5 Up to 3.3 Ghz Processor, 8GB Memory, 320GB HDD, Webcam, DVD, Windows 10 Professional) (Renewed) : Electronics
![Bios Mods -The Best BIOS Update and Modification Source - [REQUEST] Lenovo Thinkpad T430 (G1ETxxWW) Whitelist Removal Bios Mods -The Best BIOS Update and Modification Source - [REQUEST] Lenovo Thinkpad T430 (G1ETxxWW) Whitelist Removal](http://i.imgur.com/CgkZLuD.jpg)