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The notch on DDR2 DIMMs is in a different position from DDR DIMMs, and the pin density is higher than DDR DIMMs in desktops. DDR2 is a 240-pin module, DDR is a 184-pin module. Notebooks have 200-pin SO-DIMMs for DDR and DDR2; however, the notch on DDR2 modules is in a slightly different position than on DDR modules.
A test with DDR and DDR2 RAM in 2005 found that average power consumption appeared to be of the order of 1–3 W per 512 MB module; this increases with clock rate and when in use rather than idling. [14]
It featured an Intel Pentium M processor in speeds ranging from 1.2 to 1.6 GHz in either Ultra Low Voltage (1.2 GHz) or Low Voltage (1.3 GHz and up), depending on mark of laptop. The laptop featured Intel Centrino technology for power saving ability. The Mark 1, 2 and 3 used DDR RAM and the Mark 4 and 5 used DDR2.
The laptops featured 14 inch and 15.6 inch widescreen displays respectively. [11] The G455 was released in China as the G455A; the United States received a later release – March 2010. [12] The additional features on the G555 laptop are as follows: [13] Memory: 3GB DDR2; Storage: 160GB hard disk drive; Web camera: integrated
The desktop contained an AMD Athlon II X4 640 processor, 4 GB of DDR3 RAM, a 500 GB hard disk drive, and ATI Radeon HD 3000 discrete graphics. [27] The desktop was indicated by Lenovo to be "multi-monitor friendly", with the capacity to power two displays even with the basic configuration. [ 27 ]
The 20-inch model has 2 GB of dual-channel DDR2 SDRAM at 667 MHZ, while the 24-inch model has 4 GB of dual-channel DDR2 SDRAM at 800 MHZ. The XPS One 20 has integrated Intel GMA 3100 graphics, while the XPS One 24 has integrated Intel GMA X4500HD graphics, and can be customized with an NVidia GeForce 9600M GT graphics card when chosen with ...
In computing, a memory module or RAM stick is a printed circuit board on which memory integrated circuits are mounted. [ 1 ] Memory modules permit easy installation and replacement in electronic systems, especially computers such as personal computers , workstations , and servers .
Notch positions on DDR (top) and DDR2 (bottom) DIMM modules. On the bottom edge of 168-pin DIMMs there are two notches, and the location of each notch determines a particular feature of the module. The first notch is the DRAM key position, which represents RFU (reserved future use), registered , and unbuffered DIMM types (left, middle and right ...