Since this was never a retail product, in 2021 you found the HP FXN1 via:
The HP FXN1 E93839 is a motherboard designed for HP's business-class desktop computers. It can be identified by various part numbers depending on the specific HP system and form factor.
8GB sticks of DDR3 have become very cheap. Upgrading from 4GB to 16GB requires a 64-bit operating system.
The HP FXN1 is a reliable, OEM-specific motherboard designed for the HP ProDesk 600 G7 Desktop Mini (DM). It offers excellent 10th Gen Intel performance in a tiny footprint, but it suffers from the typical limitations of proprietary boards: non-standard power connectors and limited expansion slots.
If you own one of these, you have the FXM1 board:
The primary variant of this board is built on the to support professional environments.
The motherboard is a proprietary component primarily designed for the HP Compaq 8200 Elite series, including the Small Form Factor (SFF), Minitower (MT), and Convertible Minitower (CMT) configurations. It is built around the Intel Q67 Express chipset and utilizes the LGA 1155 socket . Core Specifications
It uses SO-DIMM slots (laptop-style RAM) rather than standard DIMMs. This saves space but limits you to standard JEDEC speeds. While the board can handle 3200MHz RAM, it will often downclock to 2666MHz or 2933MHz depending on the specific CPU installed (i5 vs i7).
The foundational architecture of the HP FXN1 E93839 relies on strict OEM design parameters that diverge significantly from standard off-the-shelf consumer motherboards. HP motherboard E93839 FXN1 With Intel I5-6500 - eBay
The rear I/O of the FXN1 E93839 provides robust connectivity options typical of the 2021 office standard:
