The HP FXN1 E93839 is a motherboard commonly found in Hewlett-Packard’s business-class desktop computers, specifically within the Compaq and ProDesk series. Manufactured by Foxconn (indicated by the FXN1 designation), this board was designed for reliability and office productivity during the early-to-mid 2010s.

Key specs

3. Memory (RAM)

• Type: DDR4 SO-DIMM (260-pin)
• Speed: 2400 MHz or 2666 MHz (runs at CPU-supported max)
• Slots: 2 (non-ECC, unbuffered)
• Max supported: 16 GB (2 x 8 GB) – officially, but 32 GB (2x16) may work with latest BIOS.
• Dual-channel: Yes, if both slots populated with matched modules.

Where to find more:

• Look for HP Pavilion 23-1020 or 21-a010 service manuals – they use this board.
• Search "HP E93839 schematic" for pinouts.