Hi, I just bought a hp omen 880-150nz and it wont work with the 1080 it came with.Any help?

[sami213213]

I just bought a HP Omen 880-150nz and it came with a gtx 1080 wich works in a different pc but not in my omen.I tried swapping the gpu with a gtx 950 and a gtx titan wich works just fine.Why wont the 1080 work with my omen is it cause of incompatibility.Also tried sawpping the psu with a 1000watt still nothing.The wierd thing is when i install the 1080 and insert the hdmi into the integreated gpu and wait a bit than swap the hdmi back into the 1080 the pc displays like i did some kind of  bypass.Can anyone tell me what it is?

[NonSequitur777]

@sami213213,

Welcome to our HP Community forum!

Thank you for the detailed description -and you're absolutely doing the right kind of swap testing here.

So, let’s break this down logically:

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What We Know:

• Your OMEN 880-150nz (2XB65EA) originally shipped with a GTX 1060 and a 500-watt PSU (which would already support many GTX 1080s, depending on model).

• You've upgraded to a 1000-watt PSU, eliminating power constraints.

• The GTX 1080 works fine in another PC, so the card is not faulty.

• Other cards like the GTX 950 and GTX TITAN work in the OMEN, so the slot and system POST are functional.

• You’re seeing a display only after plugging HDMI into the integrated GPU, waiting, and then moving it back to the 1080. That’s a big clue.

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Hypothesis:

This behavior sounds like a UEFI/BIOS initialization conflict -not a hardware incompatibility.

Your OMEN BIOS may be defaulting to integrated graphics when it fails to handshake properly with the 1080 at boot, possibly due to a legacy vs. UEFI mode mismatch or improper display detection.

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Recommended Fixes:

1. Reset BIOS and Load Defaults:

• Boot into BIOS (F10 at startup)

• Load Setup Defaults

• Make sure "Secure Boot" is disabled

• Set "Legacy Support" to enabled

• Save changes and reboot

 

2. Re-seat and Check PCIe Contacts:

• Power down and unplug

• Reseat the GTX 1080 securely

• Use the top PCIe x16 slot (closest to your processor)

• Ensure both PCIe 6+2 power connectors are properly connected

 

3. Clear CMOS:

• Unplug the system and remove the CMOS battery for 5 minutes

• Reinsert and reboot

• Sometimes 'stale' BIOS settings can block GPU detection

 

4. Force Primary GPU in BIOS (if option available):

Some OMEN BIOS versions allow setting the Primary Display Adapter to PCIe instead of “Auto” -do that if available.

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Side Insight: Why Does HDMI Swap Trick Work?:

When you plug into the integrated GPU first and wait, the system boots using the iGPU (Intel), and Windows initializes all display adapters. Once drivers are loaded and the system is running, the GTX 1080 gets activated and output becomes available -but only after POST. This confirms the system sees the card, but isn't POSTing through it initially.

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Conclusion:

You're most likely dealing with a BIOS handoff problem, not a compatibility issue. GTX 1080 is absolutely supported -but BIOS defaults or secure boot/UEFI settings might be holding it back at startup. Follow the steps above and let me know how it goes -I have seen this exact behavior in several OMEN and Pavilion Gaming models before.

Kind Regards,

NonSequitur777