Product Details

Best selling product ram ddr2 4g notebook factory in China

Product Description

Joinwin 4GB with DDR2 PC2-6400 memory standard features numerous memory components attached to PCB. Pins at the bottom enable connection between module and socket on larger PCB.

for laptop
4GB (1 x 4GB)
DDR2 (240-Pin DIMM)
DDR2 800 (PC2 6400)
CAS latency: CL6
Compatibility: all motherboards
Signal processing: Unbuffered
Capacity: 512mb*8/8c
Supply voltage: 1.8 V
DDR2 is the latest generation of memory with an improved architecture that allows it to transmit data more quickly
Gold pins on the bottom of the DIMM provide a connection between the module and a socket on a larger printed circuit board
Pins on the front and back of a DIMM are not connected to each other
Dual inline memory module (DIMM) consists of a number of memory components (usually black) that are attached to a printed circuit board (usually green)

Joinwin Services

1. Poor contact

Remove the memory, wipe the golden finger with eraser. then put into the motherboard to further check. If still does not work after memory been wiped for times and memory slop replaced. the momory should be deffective in this case then. You can take another memory stick to try again, or put the memory into another motherboard to further test.

2. Boot up failure

Turn off the computer, check the memory carefully to see if any defect on surface like golden finger, chips and boards, If no damage found. then should be install issue. So take out the momory. wipe the golden finger with eraser or alcohol carefully. after the alcohol evaporate, put the memory into the slot correctly. Also the defected memory slot will aslo lead to boot up failure.

3. Windows often switched to safe mode automatically

Mainly because the motherboards and memory are not compatible, high frequency of the memory does not support on the motherboards, should try to slow down the written speed in the CMOS. if still does not work. then plese replace the memory.

4. Computer random crash

Mainly as a result of the adoption of different chips of memory, the speed of memory differences a time lead to the crash, this can be solved in the CMOS setup by reducing the memory speed, otherwise, can only use the same memory. Another possibility is memory do not compatible with the mainboard,this rarely happens. poor contact also might lead to random crash.

5. High temperature on the memory

Under this condition. you can add a fan in it to improve the air flowing. Or you can add aluminium or cooper heatsink on the memory for better heat dissipation.