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- Disable IOMMU on OMEN

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05-19-2025 06:25 AM
Hello community,
I'm wondering how can I disable IOMMU on an HP OMEN as I get an error message "An input-ouptut memory management unit (IOMMU) appears to be enabled on this system" when I tried to install a well known software.
I tried to look into BIOS (actually "OMEN Setup Utility") but I can't find any options related to IOMMU.
I also find the question on reddit and appearently I'm not the only one with the problem.
Thank you very much in advance
05-21-2025 02:51 AM
@yangcyself, Welcome to HP Support Community.
Thank you for posting your query, I will be glad to help you.
We see that you are trying to disable IOMMU on your OMEN by HP 45L Gaming Desktop PC GT22-2000i (83N29AV), this can be bit tricky.
Please try these steps,
Option 1: Try Unlocking the Advanced BIOS Menu
Some HP motherboards have hidden advanced BIOS settings (including IOMMU options), which can sometimes be accessed via a key combo at boot:
- Turn off your PC completely.
- Power it on and immediately start pressing:
F10 to enter BIOS.
Once in BIOS, try pressing Ctrl + F10 or Ctrl + A or Fn + Tab (three times) and then F10 again to reveal hidden settings. - Look for an "Advanced" or "Chipset" tab — if it appears, you may find an IOMMU setting there (can also be called Intel VT-d, AMD-Vi, or DMA Remapping).
Option 2: Disable IOMMU via Boot Parameters (Linux Only)
If you're using Linux, you can disable IOMMU using kernel parameters instead of BIOS:
- Edit your GRUB config:
sudo nano /etc/default/grub
- Add the following to the GRUB_CMDLINE_LINUX_DEFAULT line:
iommu=off
- Save and run:
sudo update-grub
- Reboot your PC.
This method works without touching BIOS and is suitable if your IOMMU issue is only affecting Linux-based tools.
Unfortunately, On most OMEN systems, IOMMU can't be disabled via the default BIOS UI. Consumer (models) BIOS is limited.
I hope this helps.
Take care and have a good day.
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Max3Aj
HP Support