After removing the motherboard, you can peel off the sticker with the QR code and attempt to read the tiny writing on the chip.
All I can see is that it is a Spansion chip, and Google tells me the company is now called Cypress Semiconductor.
Someone with better eyes can comment and tell me what theirs says.
crwdns2944171:0crwdnd2944171:0crwdnd2944171:0crwdnd2944171:0crwdne2944171:0
crwdns2931507:0crwdne2931507:0
crwdns2931509:0crwdne2931509:0
crwdns2931511:0crwdne2931511:0
crwdns2931513:0crwdne2931513:0
crwdns2931515:0crwdne2931515:0
crwdns2931517:0crwdne2931517:0
crwdns2931519:0crwdne2931519:0
crwdns2931521:0crwdne2931521:0
crwdns2931523:0crwdne2931523:0
crwdns2931525:0crwdne2931525:0