Lead-free 2LI/Pb-free 2LI Board

Intel Desktop Board DG35EC Product Guide

The electronics industry is transitioning to European Union (EU) Restriction of Hazardous Substances (RoHS)-compliant products. The RoHS legislation restricts the use of six materials. One of these restricted materials is lead. Lead is the most common and problematic of the RoHS restricted materials.

There are exemptions in RoHS that allow the use of lead in some very limited locations in electronic products. Maximum lead concentration values have been established for RoHS-compliant electronic products that allow up to 1000 ppm of lead.

Lead-free/Pb-free is a nickname that is often used (or misused) for RoHS-compliant products. In this case, the term "Lead-free/Pb-free" means that lead has been removed where required by the RoHS legislation but still may exist as an impurity below 1000 ppm.

The term "Lead-free 2LI/Pb-free 2LI" means lead-free second level interconnect (2LI). The balls, leads, or pads used to connect the component to a printed circuit board are lead-free, but the first level interconnect (FLI) is not lead-free. The use of lead in the FLI is acceptable because of the RoHS "flip chip" or "die bump" interconnect exemption.

Desktop Board DG35EC is a lead-free second level interconnect product. Table 17 shows the lead-free second level interconnect marks as they appear on the board and accompanying collateral. These marks are based on JEDEC standard J-STD-609, “Marking and Labeling of Components, PCBs and PCBAs to Identify Lead, Lead Free and Other Attributes.”

For more information concerning Intel’s lead-free initiatives, refer to http://www.intel.com/technology/silicon/leadfree.htm.

DG35EC, Intel Desktop Board specifications

The Intel Desktop Board DG35EC is a versatile and reliable motherboard designed for the Intel Core 2 Processor family. Launched in the mid-2000s, it became known for its solid performance and robust feature set aimed at both general computing and home entertainment needs.

One of the standout features of the DG35EC is its support for the Intel Core 2 Duo and Core 2 Quad processors. With LGA775 socket compatibility, it allows users to take advantage of the multi-core architecture for improved multitasking capabilities and overall performance. The board supports a maximum memory capacity of 8GB using DDR2 RAM, offering dual-channel architecture for enhanced memory bandwidth, which is crucial for tasks that require significant data processing.

The DG35EC is built with Intel's G35 Express chipset, which integrates several key technologies to enhance user experience. This chipset combines graphics and memory functionality, allowing for seamless multimedia playback and enabling support for DirectX 10. The integrated Intel Graphics Media Accelerator X3000 delivers decent graphics performance for day-to-day applications and light gaming, which was impressive at the time of its release.

This desktop board also boasts a suite of connectivity options. It features six SATA 3Gb/s ports for fast data transfer with compatible hard drives and SSDs, enhancing system responsiveness. Additionally, it includes a wide array of USB 2.0 ports, enabling users to connect multiple peripherals, such as external storage devices, printers, and keyboards without the need for expansion cards.

For audio capabilities, the DG35EC is equipped with Intel High Definition Audio, providing immersive sound quality for multimedia applications and improved audio fidelity for high-definition content. This feature was particularly appealing for users who enjoyed media consumption on their desktop systems.

The board is also designed with various expansion slots, including PCI Express x16 for graphics cards, and several PCI slots for legacy devices, thus ensuring compatibility with a wide range of hardware. The compact ATX form factor makes it suitable for a variety of cases while providing sufficient room for expansion.

Overall, Intel's DG35EC Desktop Board stands out for its reliable performance and feature set tailored for everyday computing and multimedia applications, making it a solid choice for users looking to build a functional and efficient desktop system.