Upgrade Problem With Omen 880-117nz

[Myoubouh]

Hello everyone. 

I own the Omen 880-117 nz that was equiped with a GTX 1050 and I swapped it by a GTX 1080. I cleaned all the system, reseted windows 11 and installed the last version of it. The GTX 1050 was not powered directly by the power supply, but the GTX 1080 need it. I found the cables that were not used in the PC and plugged the GTX1080. Everything is working nearly fine but here is a problem. Take in account that I uninstalled the GTX1050 drivers correctly, and that I installed the last driver of the GTX 1080. 

The problem is that the PC don't want to boot when the HDMI or Display Port are connected to the GPU. The PC only boot correctly when one of the cables are connected to the motherboard. When the PC is really on when one of the cables is connected to the CPU to the screen, I can put the cable on the GPU and everything works just fine. If i restart the computer, it continues to work, but if I shut it down and launch it again... same problem, I have to do the same operation over and over. It's a shame because when it's working, it's just great ! 

I know the 500 Watts power supply of it's not perfect, but it is what NVIDIA recommands as minimum for the GTX 1080. 

I found on the internet that the this is maybe a problem from the bios that is launching the integrated GPU first, or that the PC is running on PCIe express 4.0 instead of 3.0, but there is no such options available in the BIOS settings. Seems that these options are locked by HP. 

What can I do ? I know that the PC can work like that, but I wanted to give it to people who are older and don't are used to do this kind of things. Wanted it to be the easiest possible to work with. 

Thanks a lot for the help if anyone has one idea. 

[Bill_To · Accepted solution]

Greetings @Myoubouh 

It sounds like the PC might be having a Secure Boot problem when the 1080 is installed in the MB.

Check This HP Site for instructions to disable Secure Boot and enable Legacy support. Look at : Secure Boot settings for Desktop computers".

Regards

[NonSequitur777]

@Myoubouh,

Welcome to our HP Community forum!

OK, this is what I would recommend you should try first -in order of likelihood/effectiveness:

1. Disable the integrated GPU in Windows Device Manager -often works:

This forces Windows to stop presenting the iGPU as an available output.

Although BIOS still initializes the iGPU, many systems fall back to the dGPU on cold boot after the iGPU is disabled at the OS level.

Steps:

• Boot with monitor connected to the motherboard.

• Open Device Manager → Display Adapters.

• Right-click the Intel GPU → Disable device.

• Shut down fully → connect monitor to the GTX 1080 → cold boot.

If the system POSTs directly on the GTX 1080 afterward, the issue is resolved.

2. Update to the latest BIOS for your OMEN by HP 880-117nz:

Even though HP BIOS options are limited, several updates improve PCIe initialization behavior and GPU compatibility.

The latest BIOS version depending on your motherboard's "SSID" -you can find out what your SSID is by typing System Information in your lower Windows search bar, clicking on the System Information app, and looking to the right of "BaseBoard Product":  OMEN by HP Desktop PC - 880-117nz Software and Driver Downloads | HP® Support.

3. Replace the OEM 500-watt PSU

Yes, a well-functioning 500-watt power supply should be sufficient to power a GTX 1080.  However, please note that a GTX 1080 is significantly more demanding than the original GTX 1050. A high-quality 650–750-watt PSU (80+ Gold or better) ensures stable power delivery during POST, which is often the root cause of "no video on cold boot."

4. Reseat GPU and PCIe power cable

 

Ensure:

• GPU is fully inserted in PCIe Slot 1.

• The PCIe 8-pin power connector is firmly attached.
  Loose power can cause intermittent cold-boot initialization failures.

Summarizing:

 

Your OMEN 880 should be able to run a GTX 1080 without issue, but the BIOS does not always initialize the card during cold boot. The most common and effective solutions are:

1. Disable the Intel iGPU in Device Manager.

2. Update the system BIOS.

3. Upgrade the PSU if symptoms persist.

Once the dGPU is consistently detected at POST, the system should boot normally every time with the monitor connected directly to the GTX 1080 -no cable-swapping required.

Kind Regards,

NonSequitur777

[Myoubouh]

Hello Bill_To and Nonsequitur777. Thanks a lot to both of you for your help !

I tried the first thing that was proposed by Hello_To and.... It was the good one !!! It worked !

I saw a lot of this problem over the internet and seems that people never find the solution, how did you found this ? And why is HP doing this in gamer PC's that should easy to upgrade ? The card was really blocked by this. If you have one idea why ?

Nonsequitur777 I let the pc running all day, played a bit Crash Bandicoot N.Sane trilogy at ultra settings worked great and no problem. Seems the 500 watts are working great with rhis pc model with and GTX 1080. =D ( p.s : I'm the Omen X owner, I picked up one of the two GTX 1080 of it to put into this one ahah) and I'll upgrade another Pc from a 1070 to the 1080)

Hope this post will help some people in the future.

[Bill_To]

Greetings @Myoubouh 

Good to see the 1080 is back in business.

Any of the suggestions provided by me or @NonSequitur777 could have been causing the problem.

I build, upgrade, and repair PCs.

I 've run into the Secure Boot enabled roadblock when doing many graphics card upgrades. You have to reinstall the old GPU (unless you have onboard graphics), disable Secure Boot, and then install the new graphics card.

I now use the BIOS custom Secure Boot keys option after getting the new graphics card working on the retail MBs I work with. I'm not familiar with your PC BIOS. So I don't know if you can do a custom key Secure Boot setting.

Then one can use an upgraded Graphics card and Secure Boot if desired.

Regards