Hp Fxn1 E93839 Motherboard Specs
The Ghost in the Grey Box: A Story of the HP FXN1 E93839
To understand the HP FXN1 E93839 motherboard, you have to picture the environment it was born into. It wasn’t created for the flashiness of a gaming rig or the silence of a home theater PC. It was forged in the fires of the corporate millennial boom—a time when tower PCs hummed beneath desks in cubicles across the world, running Windows XP or Windows 7.
Here is the detailed story of this specific piece of hardware, broken down by its anatomy, its purpose, and its modern legacy.
Critical note: The FXN1 does not support ECC (Error-Correcting Code) memory. Installing ECC DIMMs will result in a failed POST or beeping error codes.
While the board measures roughly 9.6 x 9.6 inches (Micro-ATX), the mounting holes are shifted by approximately 0.5 inches compared to standard cases. It will not screw directly into a retail ATX case without drilling or using standoff adapters. The I/O shield is also integrated into the backplate of HP’s original chassis.
With these upgrades, the HP FXN1 E93839 can still run Windows 11 (with bypass), office suites, 1080p video, and esports titles like League of Legends or CS:GO comfortably.
However, for modern AAA gaming or video editing, this platform is obsolete. The LGA 1150 socket reached end-of-life in 2015. If you are building from scratch, look for used Ryzen or 8th-gen Intel systems instead.
Spec sheet summary for quick reference:
Use this guide to make informed decisions about repairing, upgrading, or replacing your HP FXN1 motherboard.
Report: HP FXM1 (E93839) Motherboard – Specifications & Analysis
1. Executive Summary The HP FXM1 (part number E93839) is a micro-ATX motherboard manufactured by Pegatron (a common HP OEM supplier). It was predominantly used in the HP Pavilion p6-2xxx and HP Compaq Presario CQ-2xxx series desktops produced around 2011–2012. This board is based on the Intel H61 chipset, designed specifically for Intel’s 2nd generation (Sandy Bridge) processors, with limited support for 3rd generation (Ivy Bridge) CPUs after a BIOS update.
2. Key Specifications at a Glance
| Category | Specification | | :--- | :--- | | Model | HP FXM1 (FOXCONN / Pegatron) | | Spare Part # | E93839 (common), also E93789, E94937 (variants) | | Form Factor | micro-ATX (24.4 cm x 24.4 cm approx.) | | Chipset | Intel H61 Express | | CPU Socket | LGA 1155 | | CPU Support | Intel Core i7 / i5 / i3 (Sandy Bridge), Pentium, Celeron | | Memory | 2 x DDR3 DIMM slots (max 8GB or 16GB depending on BIOS) | | Memory Speed | DDR3-1066 / 1333 / 1600 (1600 runs at 1333 on Sandy Bridge) | | Expansion Slots | 1 x PCIe x16, 1 x PCIe x1, 1 x PCI (legacy) | | Storage | 3 x SATA 3Gb/s (SATA II), 1 x SATA 6Gb/s (SATA III) | | Back I/O | PS/2 keyboard, PS/2 mouse, 4 x USB 2.0, VGA, RJ45, 3 audio jacks | | Internal Headers | 2 x USB 2.0 (4 ports), front audio, COM port header | | Audio | Realtek ALC662 (5.1 channel) | | Ethernet | Realtek RTL8105E (10/100, not Gigabit) | | Power Connectors | 24-pin ATX + 4-pin CPU |
3. Detailed Component Analysis
3.1 Processor (LGA 1155)
3.2 Memory
3.3 Storage & SATA Issues
3.4 Graphics
3.5 Power & Cooling
4. Known Issues & Limitations
| Issue | Detail | | :--- | :--- | | BIOS lock | HP OEM BIOS locked to certain CPU microcode; unsupported CPUs cause black screen. | | No UEFI | Legacy BIOS only – no Secure Boot, no boot from GPT drive without CSM. | | 4-pin CPU fan warning | Board may fail POST if fan RPM too low (common with third-party coolers). | | Capacitor aging | Known for failing electrolytic caps near VRM and RAM slots (bulging/leaking). | | Slow Ethernet | Realtek 8105E is Fast Ethernet (100Mbps) – not Gigabit. | | USB 3.0 absent | No internal or rear USB 3.0 headers/ports. |
5. Typical System Configuration (as sold) hp fxn1 e93839 motherboard specs
6. Upgrade Recommendations
7. Conclusion The HP FXM1 (E93839) is a legacy entry-level LGA1155 board with severe limitations (no USB 3.0, slow LAN, VGA only, weak power delivery). It is usable today only as a basic office PC or retro gamer (Windows 7/Linux) after adding an SSD, 8GB RAM, and a low-end GPU. It is not suitable for modern gaming, media center use (no HDMI), or high-performance tasks. Any investment should be minimal due to capacitor failure risks and proprietary BIOS constraints.
End of Report
The FXM1/E93839 board exists in two main platform variants. Check your exact model number on the sticker.
Known limitations:
If you own any of these desktops, you likely have this motherboard:
You can verify by opening the case and looking for “E93839” printed in white near the 24-pin area or between the PCIe slots. The Ghost in the Grey Box: A Story