Dell Dimension 3100 Motherboard Specs

Written by andy josiah
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Released in 2006, the Dell Dimension 3100 -- also known as the Dimension E310 -- is a desktop personal computer that belongs to a now-defunct, budget-oriented PC brand offered by technology company Dell Inc. Its "heart," the motherboard, is Dell's JC474, which is still available at some online retail stores with a £32-to-$100 price range as of 2011.

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Processor Support

One of the motherboard's chief functions is to provide physical, mechanical and electrical support for the computer's processor (or central processing unit) via the CPU socket. Regarding the Dell JC474, it has the Land Grid Array. Released in 2004, and also known as Socket T or Socket 775, the LGA775 is chiefly meant to accommodate semiconductor company Intel Corp.'s Pentium 4 CPUs with Hyper-Threading Technology to boost multitasking. Some Dimension 3100/E310s, however, come with a processor from the low-end Celeron brand instead. Each CPU must have at least a 16-kilobyte Level 1 cache and 256-KB Level 2 cache, which are small memory banks that it uses for high-speed access to the desktop's most frequently used data.

Memory Support

Each Dell Dimension 3100/E310 motherboard has two dual inline memory module slots, one of which has pre-installed 256 megabytes, 512 MB or one gigabyte of system memory. Users, however, can install the maximum 2 GB capacity by placing a 1 GB memory module in each slot. Dell bases the system memory on second-generation Double Data Rate Synchronous Dynamic Random Access Memory, or DDR2 SDRAM, and sets its access speed at 400 or 533 megahertz.


The Dell JC474 has an Intel 915GV chipset, a collection of integrated circuits that performs some of the functions of the motherboard. This includes providing the Dell Dimension 3100/E310's audio and video/graphics via the integrated high-definition sound driver and graphics controller, respectively. It also contains the desktop's Ethernet driver, which can provide up to 100 megabits per second in data transmission.

Expansion and Connectivity

For expansion, the Dell JC474 offers two 120-pin Peripheral Component Interconnect slots with a maximum 32-bit connector data width and 33MHz data transfer speed; and a 36-pin PCI Express slot with a 500 MB bidirectional speed. Also included are a RJ-45 jack for the Ethernet, six USB 2.0 ports, floppy disk connector, and two Serial Advanced Technology Attachment interfaces and one 66/100/133-MB/s Integrated Drive Electronics interface for the hard disk and optical drives.

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