Can a atx motherboard fit into a hp omen 40L case

[Xavilezx]

Want to upgrade my motherboard to a atx

[NonSequitur777]

@Xavilezx,

Welcome to our HP Community forum!

Your PC is already powered by a 24-pin ATX power supply -albeit HP-branded no doubt.

Meaning, you can install any industry standard ATX power supply, as long as you check its dimensions (LxWxH) -which are also pretty standard, to make sure it will fit in your case.

Kind Regards,

NonSequitur777

[NonSequitur777 · Accepted solution]

@Xavilezx,

If you mean: can I install a non-HP gaming motherboard in my HP Omen 40L case, the answer is: yes, but with significant limitations and modifications. The HP OMEN 40L case is designed around HP’s proprietary motherboard layout, so replacing it with a standard non-HP gaming motherboard isn’t a straightforward swap. Here’s what you should consider:

Key Challenges & Workarounds:

1. Motherboard Standoffs & Form Factor:

   • The HP OMEN 40L uses a custom motherboard design that doesn’t follow standard ATX mounting points exactly.
   • Some standoffs may not align with a standard ATX motherboard, requiring new holes to be drilled or adapter mounts.

2. Front Panel Connectors:

   • HP uses proprietary front panel connectors for the power button, LED controls, and USB ports.
   • A non-HP motherboard may not have compatible headers, requiring an adapter or rewiring.

3. Power Supply (PSU):

   • If using the stock HP PSU, check if it has standard 24-pin and 8-pin power connectors. Some HP power supplies use proprietary pinouts, requiring an adapter or a PSU replacement.

4. Cooling & RGB Integration:

   • The HP OMEN 40L’s RGB lighting and fan controls are integrated with HP’s motherboard and software.
   • A non-HP motherboard won’t control these directly, so users may need third-party software, BIOS adjustments, or an external RGB controller.

5. BIOS & Fan Control:

   • HP’s motherboards have proprietary BIOS settings for cooling profiles.
   • A different motherboard will require configuring new fan control settings in BIOS or using a separate fan controller.

 

Bottom Line:

While it’s possible to install a non-HP gaming motherboard, it’s not plug-and-play. If you are comfortable with custom wiring, modifying the case, and potentially replacing other components (PSU, cooling, RGB controller), you can make it work. Otherwise, you might be better off using a standard aftermarket case for a smoother upgrade.

Kind Regards,

NonSequitur777