Most boards bearing this marking use the LGA 1155 socket. They typically support 2nd and 3rd Generation Intel Core i3, i5, and i7 processors, such as the Intel i5-2300 or i7-2600 .
The identifier 21-B6-E1-E2 does not represent a specific Intel model name but is a marking often found on labels or silk-screened on older Intel-manufactured motherboards. Motherboards with this marking are typically older "legacy" systems, often identified by their AA (Altered Assembly) number (e.g., AAD53350-205).
Typically supports up to 8 GB (for older chipsets like G41) or up to 16 GB / 32 GB (for newer chipsets like H61/B75). intel desktop board 21 b6 e1 e2 specification
If you are currently setting up or diagnosing a computer system using this hardware, let me know:
. Because these markings are shared across different products, they cannot be used to identify a specific board's unique features. Most boards bearing this marking use the LGA 1155 socket
Restart your computer and enter the BIOS setup (usually by pressing F2 or Del) to see the model name (e.g., DH61WW , DG41RQ ).
: Typically includes 1x PCIe x16 slot for graphics and legacy PCI slots. How to Find the Exact "Proper Paper" Intel provides detailed Technical Product Specifications (TPS) Motherboards with this marking are typically older "legacy"
: Primarily Micro-ATX (mATX) , though standard ATX variants exist for media center builds. PCB Color : Classic Intel deep blue or emerald green. Core Architecture & CPU Sockets 3rd-gen-core-desktop-vol-1-datasheet.pdf - Intel