HP FXN1 E93839 is a proprietary motherboard commonly found in business-class desktops, such as the HP ProDesk 600 G3
series. It is designed for reliability in professional environments, offering a modified ATX form factor that fits specific HP chassis. Key Specifications
The FXN1 E93839 is built to support 6th and 7th Generation Intel technology, making it a solid choice for standard office tasks and moderate multitasking. Processor Support: Designed for the Intel LGA 1151
socket, supporting 6th Gen (Skylake) and 7th Gen (Kaby Lake) Core i3, i5, and i7 processors. 4x DDR4 DIMM slots
, typically supporting up to 64GB of RAM (Non-ECC, unbuffered). Expansion Slots: 1x PCIe x16 (for dedicated graphics) 1x PCIe x4 (open-ended or x16 physical) M.2 slots for NVMe SSDs and Wi-Fi cards Rear I/O Ports: 2x DisplayPort (some variants include VGA or HDMI) Multiple USB 3.0/3.1 Gen 1 ports and often 1x Networking: Integrated Gigabit Ethernet (RJ-45) Standard Line-in/Line-out jacks HP Support Community Usage and Compatibility Notes Proprietary Design: Because this is an HP OEM board, it uses non-standard power connectors hp fxn1 e93839 motherboard specs
(typically 6-pin or similar) rather than the standard 24-pin ATX connector found on aftermarket power supplies. Chassis Fit:
It is intended for HP's Small Form Factor (SFF) or Microtower (MT) cases. Due to the unique mounting hole patterns and front-panel headers, it is difficult to install in a standard third-party PC case without significant modification. Reliability:
As a business-grade component, it is engineered for long-term stability and 24/7 operation.
If you are looking to buy or sell this part, you can find listings on marketplaces like or specialized parts retailers. HP FXN1 E93839 is a proprietary motherboard commonly
RAM Compatibility with Motherboard - HP Support Community - 8643254
The HP BIOS (accessible by pressing F10 during boot) is locked down compared to retail boards.
HP does not publish a standalone manual for the FXM1. Instead, refer to:
Here is the complete breakdown of the HP FXN1 E93839 motherboard’s specifications. The HP BIOS (accessible by pressing F10 during
| Feature | Specification | | :--- | :--- | | Manufacturer | Hewlett-Packard (HP) | | Model / PCB | FXN1 | | Part Number | E93839 | | CPU Socket | LGA 1150 | | Chipset | Intel H87 Express | | Compatible Processors | Intel Core i7-4xxx, i5-4xxx, i3-4xxx, Pentium G3xxx, Celeron G18xx (Haswell & Haswell Refresh only — NOT compatible with Broadwell/6th gen) | | Memory Slots | 2 x DDR3 DIMM (240-pin) | | Memory Type | DDR3 (Non-ECC, Unbuffered) | | Memory Speed | 1333 MHz, 1600 MHz (downclocks to 1333 depending on CPU) | | Max Memory Support | 16 GB (2 x 8GB modules) | | Memory Architecture | Dual-channel | | Expansion Slots | 1 x PCIe x16 (v2.0/v3.0), 1 x PCIe x1, 1 x PCI (32-bit legacy) | | Storage Interfaces | 4 x SATA 3.0 (6 Gb/s), 1 x SATA 2.0 (3 Gb/s — often for optical drive) | | M.2 Slot | No | | Rear I/O | 1 x PS/2 (keyboard), 1 x VGA, 1 x DVI-D, 1 x HDMI, 4 x USB 2.0, 2 x USB 3.0, 1 x RJ45 Ethernet, 3 x Audio jacks | | USB Headers (Internal) | 2 x USB 2.0, 1 x USB 3.0 | | Audio Codec | Realtek ALC662 (5.1 channel HD Audio) | | LAN / Ethernet | Realtek RTL8111HSH (Gigabit) | | BIOS | AMI (American Megatrends) with HP UEFI interface | | Power Connectors | 1 x 24-pin ATX (proprietary pinout possible), 1 x 4-pin CPU (12V) |
The most important aspect of the FXN1 is its strict CPU support. It uses LGA 1150, which supports Intel’s 4th gen "Haswell" and 5th gen "Haswell Refresh" (not to be confused with 5th gen Broadwell).
Supported CPUs (Tested & Confirmed):
What does NOT work:
Pro Tip: The best upgrade for this motherboard is a used Core i7-4770 (non-K) or i7-4790. Pair this with 16GB of DDR3 RAM for a significant performance jump.