Cheap And Discounts Applicable to G70-70 notebook motherboard I5-4210U UMA number NM-A331 FRU 5B20G89582 5B20G89500 5B20G89506 Wholesale. Buy Directly From Merchant For-Lenovo PC Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.