The FXN1 features four DDR2 DIMM slots.

This is a crucial detail in its story. By the time this board was relevant, the world was transitioning to DDR3 memory. However, the G31 chipset was built for the older, fatter DDR2 sticks.

The board supports Dual-Channel memory architecture. In a corporate setting, an IT tech would have populated two of those slots with 2GB sticks, giving the office worker a respectable 4GB of RAM—enough to run Outlook, Excel, and Internet Explorer without crashing. The maximum capacity is usually capped at 4GB or 8GB depending on the specific BIOS revision, but in the era of 32-bit Windows XP, 4GB was the ceiling anyway.

When searching for the keyword "HP FXN1 E93839 motherboard specs," you are likely either troubleshooting an existing HP desktop, looking to upgrade a system, or sourcing a replacement part. Unlike off-the-shelf retail motherboards from ASUS, MSI, or Gigabyte, the HP FXN1 is a proprietary board. Understanding its exact specifications is critical because it dictates what CPUs, RAM, power supplies, and cases are compatible.

The HP FXN1 (part number E93839) is primarily found in HP’s mainstream business desktops and all-in-one (AIO) PCs, specifically within the HP Compaq 6200 Pro, HP Compaq 8200 Elite, and select HP Pavilion series from 2011–2013.

Below is the complete technical breakdown of this motherboard.

The HP FXM1 / E93839 is a compact, soldered-CPU motherboard built for entry-level HP All-in-One PCs. It supports DDR4 SO-DIMMs, one SATA drive, and optionally one M.2 SSD (SATA preferred). It cannot be used outside its original AIO chassis without heavy modification, and its CPU is not upgradeable. Focus upgrades on RAM and replacing the HDD with an SSD for noticeable speed gains.

If you have the exact AIO model number (e.g., HP 24-f0028), I can give you CPU and BIOS specifics for your variant.

The HP FXN1 E93839 Go to product viewer dialog for this item.

is a proprietary motherboard primarily used in HP's business-class desktops, such as the HP Compaq 8200 Elite and EliteDesk 800 G3 series. Because "E93839" is a regulatory mark rather than a unique model number, specifications vary significantly depending on the specific HP generation it belongs to. Common Variations & Key Specifications

The most frequent versions of this motherboard are found in the following configurations: Version A: HP 8200 Elite / 6200 Pro Series Socket Type: LGA 1155 (Socket H2).

Processor Support: Intel 2nd and 3rd Generation Core i3, i5, and i7 processors (e.g., i5-2400, i7-3770). Memory: Typically 4 slots supporting DDR3 SDRAM.

Form Factor: Small Form Factor (SFF) or proprietary modified ATX. I/O Ports: VGA, DisplayPort, and multiple USB 2.0 ports. Version B: HP EliteDesk 705 / 800 G3 Series Socket Type: LGA 1151 or AM4 (for AMD variants).

Processor Support: Intel 6th and 7th Generation CPUs (e.g., i5-6500) or AMD Ryzen processors.

Memory: Supports DDR4 SDRAM (up to 64GB in some configurations).

Connectivity: Modern ports including USB-C, DisplayPort, and eSATA. Technical Details & Features

Expansion Slots: Includes at least one PCI Express x16 slot for low-profile graphics cards.

Integrated Graphics: Features an on-board video chipset (requires a CPU with integrated graphics).

Power Supply: Often requires proprietary HP power connectors rather than standard 24-pin ATX cables. Audio: Standard on-board high-definition audio. Important Considerations for Upgraders

Proprietary Design: These boards are often designed for specific HP cases. Mounting holes and power connectors may not align with standard aftermarket PC cases.

Power Limits: Small Form Factor (SFF) versions usually pair with 240W or 250W power supplies, limiting the type of dedicated graphics cards you can add. How to Check Your PC's Specs and What They Mean - HP

No upgrade possible – the CPU is soldered directly to the board.