Features:

Notebook memory is designed for DDR2 PC2-6400 laptops and is fit for / motherboard.

With frequency up to 800MHz, it ensures high performance and improves the fluency of system.
2GB - Large capacity provides powerful performance and storage space for daily reading and writing.
Built-in high quality chips for stable performance 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 (for / )
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 for your computer.

2. Please note that memory models is divided into , DDR, DDR2, and DDR3. You can refer to the following table, and if you still don't know which memory is right for your computer, use the software test to see what memory your computer needs, to protect the CPU and your computer.

Type	Suitable memory
PC2100	DDR 266 memory
PC2700	DDR 333 memory
PC3200	DDR 400 memory
PC4200	DDR2 533 memory
PC5300	DDR2 667 memory
PC6400	DDR2 800 memory
PC8500	DDR3 1066 memory
PC10700	DDR3 1333 memory
PC12800	DDR3 1600 memory

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.

4. DDR2 2G 800Mhz memory were only applicable to mainstream brand laptops with DDR2 slots during 2008-2010. Including fit for ThinkPad, fit for  , fit for  dv series, etc. Before purchasing, please confirm that the model clearly supports DDR2 and a single slot can accommodate 2GB.