I have bought this memory for my laptop that does not work, the bios beeps. It appears the online shop has sent the wrong type. Can someone tell me the characteristics of this memory? It's got 8 pairs of ICs, the first one of each pair is labeled: PC312 -6A 0806 5HN2 (printed sideways) and the 2nd is labeled the same but it says this sideways instead: (same) 57JV (printed sideways) There is also a sticker on the board that says: PC2700 DDR SDRAM 128Mx64 1GB 1GBSJURVUNBA What is the voltage, parity, etc of this memory? PS. Laptop is an Acer Ferrari 4005wlmi.