Acer Aspire Timeline 4820TG-6847 Intel Motherboard. Acer P/N: MB.RDC06.002 / MBRDC06.002 RAM (Memory) support: Up to 8GB (2 sockets) DDR3 soDIMM (removable, not included) Check Compatibility. Match Motherboard "MB" P/N. Refurbished. Fully Tested. 30 day warranty. IMPORTANT TECH NOTE: there may be several different (and non-interchangeable) motherboards available for this notebook series, so prior to placing your order, locate your motherboards "MB" part number and then order that exact number. P/N is usually located on the memory slot.