Intel Desktop Board 21 B6 E1 E2 Manual Info

"21 B6 E1 E2"

The identifier (often preceded by /21 ) is a regulatory marking found on several vintage Intel motherboards, most commonly associated with the LGA 1155 socket generation

Because this identifier is a common regulatory string, it often appears on several different boards from the 2nd Generation Intel Core processor era. This article will help you identify your actual board model, find the correct manual, and understand the technical specifications common to this family of hardware. Identifying Your Actual Board Model Intel Desktop Board 21 B6 E1 E2 Manual

| Pin | Signal | Pin | Signal | | :--- | :--- | :--- | :--- | | 1 | HDD LED (+) | 2 | Power LED (+) | | 3 | HDD LED (-) | 4 | Power LED (-) | | 5 | Ground | 6 | Power Switch (+) | | 7 | Reset Switch (+) | 8 | Power Switch (-) | | 9 | +5V (spare) | 10 | No pin (key) | "21 B6 E1 E2" The identifier (often preceded

Practical installation checklist

• Processor Socket: LGA775 (Supports Intel Core 2 Quad, Core 2 Duo, Pentium D, Celeron D).
• Memory Slots: 2 or 4 DIMM slots. Check your revision: "E1/E2" might indicate voltage support. Older = DDR2 (1.8V). Newer = DDR3 (1.5V). Do not mix voltages.
• Expansion Slots: 1 x PCI Express x16 (for graphics), 1 x PCIe x1, 2 x PCI.
• Rear I/O: PS/2 mouse/keyboard, 4x USB 2.0, LAN, VGA (on G31/G33), audio jacks.

DH61WW

Since "21 B6 E1 E2" is not a specific model, you must find the actual board name (e.g., , DH67BL , or DZ68BC ) printed directly on the PCB, usually between the PCI slots or near the RAM, to find the correct manual. Processor Socket: LGA775 (Supports Intel Core 2 Quad,