Lenovo ThinkPad SL500 Series Intel Chipset GM45 Socket mPGA478 Laptop Motherboard 42W7891 11S42W7891.
Chipset: Intel GM45 (SLB94)
Socket: Intel mPGA478
Max Supported Memory: 4GB
Number of Memory Slots: 2
Memory Type: DDR2 SDRAM
Type: Laptop Motherboard