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Double Data Rate 2 Synchronous Dynamic Random-Access Memory (DDR2 SDRAM) is a double data rate (DDR) synchronous dynamic random-access memory (SDRAM) interface. It is a JEDEC standard (JESD79-2); first published in September 2003. [2] DDR2 succeeded the original DDR SDRAM specification, and was itself succeeded by DDR3 SDRAM in 2007.
The ThinkPad T43 features an Intel Pentium M processor, ATI Mobility Radeon X300 or X300SE graphics, and a 14.1-inch TFT display. It supports up to 2GB of DDR2 memory and storage options ranging from 40GB to 100GB HDD.
Memory module slots Maximum memory Clock speed Video type Core Frequency Video controller Video memory Height Width Depth Weight 1000 2009 NVIDIA MCP61 Intel Pentium 3 DDR2 SDRAM 2 DDR2 SDRAM slots 4096 MB 800-MHz DDR2 unbuffered SDRAM Integrated NVIDIA GeForce 6150 SE VT1708B G PCI, PCI Express (x1, x16), SATA 38.6 cm 18.5 cm 41.5 cm
JEDEC has set standards for the data rates of DDR SDRAM, divided into two parts. The first specification is for memory chips, and the second is for memory modules. The first retail PC motherboard using DDR SDRAM was released in August 2000. [10]
The Mark 1, 2 and 3 used DDR RAM and the Mark 4 and 5 used DDR2. The Cf-29 Toughbook offered multiple configurations from the factory including backlit keyboard and touchscreen. Notably, from the CF-29 on, Panasonic changed the power supply connector previously used on the CF-25, CF-27, CF-28, etc. for a new connector.
1555: Newer Core 2 Duo and Pentium processors, 800 MHz DDR2 RAM and an ATI Mobility Radeon HD 4570 video card with 256 MB or 512 MB or dedicated memory. 1557: Intel Core i7 quad-core processor, 1066 MHz or 1333 MHz DDR3 RAM and standard ATI Mobility Radeon HD 4570 video card with 512 MB of video memory.