According to Dell, the PP18L laptop was used as the basis for the Dell Latitude D620 and Latitude D630 models, both of which were targeted as business class thin and light notebooks at their introduction in the first half of 2007. Line refreshes kept this laptop model on the market through 2009.
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Processor and RAM
The Latitude D620 came with a wider array of processors. Its initial configuration included a Core Solo CPU running 1.83 GHz and a Core Duo CPU running at 1.66 GHz. A product refresh included a faster CPU and dropping the Core Solo CPU fairly early on. These refreshed configurations all ran Core Duo processors, with CPU speeds covering 1.83, 2.0 and 2.16 GHz, respectively. A second line refresh upped the CPUs to Core 2 Duo processors, running at the same spread of CPU speeds--1.83 GHz, 2.0 GHz and 2.16 GHz. The Latitude D630 laptop had a faster front side bus speed (800MHz), allowing a general performance increase in accessing RAM, and a faster range of processors--the Latitude D630 a Core Duo running at 1.83 GHz and Core Duos running at 2.0 and 2.16 GHz. Both machines can accommodate up to 2GB RAM cards for a maximum of 4GB total; if upgrading the RAM make sure the speed of the RAM matches the speed of the front side bus for maximum compatibility.
Hard Drive Type and Capacity
Both models of PP18L laptops use SATA connectors on 1.8-inch hard drives; over the lifetime of these computers, the hard drives increased in size from 40 GB to 160 GB, all running at 5,400 RPM. A reasonably common aftermarket upgrade on these laptops was a larger hard drive, as this computer was one of the first laptops to adopt the SATA standard.
Display and Graphics Cards
These laptops were built for business use. Either model might have the integrated Intel 945G graphics chipset, which used a portion of system RAM for graphics rendering. A few models were built with a secondary graphics controller by Nvidia, which offered better performance, but still had no specific dedicated on-board RAM for the video card.
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