DDR2 RAM chips are usually 240-pin Dual Inline Memory Modules. These modules are physically very different to DDR DIMMs, which usually use a 184-pin connector.

Micron Technology Inc., Samsung Electronics Co., Elpida Memory Inc., Hynix Semiconductor Inc. and Infineon Technologies AG are all currently shipping DDR2 memory chips at 400- and 533-MHz data rates.

DDR2 memory, for instance, first appeared in 2004. But only in the last 12 months has DDR3 taken over as the mainstream memory type for most new PCs. If you factor in existing systems, DDR2 is ...

More RAM reduces the amount the page file is used, speeding up programs and allowing you to run more applications simultaneously. ... DDR / DDR2 memory. by Parm Mann on 2 July 2008, 00:00 ...

I've got a friend who's motherboard died and who is looking to buy a new mobo. He's currently looking at the ASUS M3A78-EM, which is a DDR 1066 motherboard. His current RAM is two 1GB sticks of ...

It will not work. DDR2 and DDR3 are electrically incompatible. Not to mention while they both are 240 pin connectors the key slots are in different places so the memory will not physically fit either.

After a much longer-than-expected delay, double data rate, second generation (DDR2) has finally taken over as the most popular memory chip used in PCs. The crossover to DDR2 from the previous ...

I took my main desktop machine - quad-core Intel Core2 Extreme QX9650 3.0GHz system, 8GB RAM DDR2 800, Vista Ultimate 64-bit - and ran different tests with different memory configurations.

BOSTON – With so much emphasis placed on processors, memory chips often get overlooked as an integral component of system performance. DRAM (dynamic RAM) vendors will start the transition to a ...

Great article! Now I have a question: I have a couple of DDR2 PC4300 modules at 1 GB per module installed on my computer, which gives it 2 GB of total RAM. I took the old modules that I had (256 ...