HP E93839 FXN1 is a proprietary motherboard most commonly found in business-grade systems like the HP Compaq 8200 Elite

Memory: The board includes four DIMM slots supporting DDR3 SDRAM.

HP FXN1 E93839 is a proprietary motherboard primarily used in business-class desktops like the HP Compaq 8200 Elite series. It features an LGA 1155 socket and uses the Intel Q67 Express chipset HP Support Community Core Specifications Socket Type : LGA 1155 (Socket H2). : Intel Q67 Express. Form Factor

Form Factor: Modified Micro-ATX or Proprietary SFF (Small Form Factor), designed specifically for HP chassis. Connectivity & Expansion

The most widely documented version of this board, found in the 8200 Elite series, features the following:

• OEM HP ATX (proprietary) motherboard used in HP Compaq/Elite series (8200/8300/Pro/EliteDesk families). Typical revision: FXN1 / Rev. A (model E93839 / SP/PN variants).
• Target: business desktops; not a consumer/gaming board. Strengths: reliability, compact integration, decent I/O for office use. Limitations: proprietary layout, older LGA1155 platform, limited upgrade path.