Asus UX31E Intel Core i5-2557M 1.7GHz SR0CS Processor 4GB Laptop Motherboard 60-N8NMB4F01-C02.Asus Part Number: 60-N8NMB4F01-C02Compatible Part Numbers: 69N0LYM1GC02CPU: Intel Core i5-2557M 1.7GHz SR0CS ProcessorCompatible Models: Asus UX31E Series