Features: Notebook memory is designed compatible with DDR2 PC2-6400 laptops and is fit compatible with intel/ AMD motherboard. With frequency up to 800MHz, it ensures high percompatible withmance and improves the fluency of system. 2GB - Large capacity provides powerful percompatible withmance and storage space compatible with daily reading and writing. Built-in high quality chips compatible with stable percompatible withmance and high speed operation. High-quality circuit module board, effectively avoiding corrosion and wear, durable and easy to carry. Specification: Model: DDR2 Memory frequency: 800MHZ Memory capacity: 2G Compatible: Fully compatible (compatible with intel / AMD ) Bandwidth: PC2-6400 Voltage: 1.8V Pin number: 200Pin Product size: about 6.7 * 3 * 0.3cm Weight: Approx. 12.8g Package list: 1 * DDR2 Memory Notes: 1. Please check the memory type of your computer below to choose the best one compatible with your computer. 2. Please note that memory models is divided into SD, DDR, DDR2, and DDR3. You can refer to the following table, and if you still don't know which memory is right compatible with your computer, use the software test to see what memory your computer needs, to protect the CPU and your computer. T ype Suitable memory PC2100 DDR 266 memory PC2700 DDR 333 memory PC3200 DDR 400 m emory PC 4200 DDR2 533 m emory PC530 0 DDR2 667 m emory PC6 400 DDR2 800 memory PC8500 DDR3 106 6 memory PC1070 0 DDR3 1333 memory PC1 2800 DDR3 1600 mem ory 3. If the memory appears below situations: blue screen, crash, restart, alarm sounds, please follow the following methods one by one, if not, it is sure that it is not compatible. 3.1. The memory is not inserted, or the gold finger is oxidized. Wipe the memory gold finger with an eraser and reinsert it, or change the slot; 3.2. The memory slot is dusty or oxidized. Wash it with a brush by the water. 3.3. Memory is not compatible, try to change the memory. 3.4 CMOS does not discharge and restore the factory settings, maybe it is normal (the motherboard battery is taken down, and then installed back). 3. 5. The motherboard is not compatible with the CPU, change the CPU test.