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‎01-31-2022 05:26 PM

HP Recommended
Product: OMEN by HP Desktop PC - 870-210se CTO
Operating System: Microsoft Windows 11

Installed a new Samsung Odyssey G9 monitor, and it works fine except when restarting the computer. If the monitor is powered on at restart, I get 3 long beeps and 3 short beeps and it does not boot up. If I power off the monitor and then wait until past boot time and then power it on, it's fine.

Things I've tried:

1. HDMI works fine - this only happens with DP. However, I can't use the HDMI cable or I won't be able to use the full resolution and refresh rate.

2. The previous monitor works fine and was using DP without any issues, but at a lower resolution.

3. BIOS is up to date.

4. Reseated the graphics card (GTX 1080). It is the original card that came installed with the PC.

5. I checked with NVidia before buying the monitor and they said the card would support 5120x1440 at 60Hz, but it is detecting and using 120Hz. I tried lowering it to 60Hz but it had no effect on the boot issue.

6. I also toggled the "integrated video" option in the BIOS, but that also had no effect.


Most of the references I've seen indicate a faulty or poorly seated video card, but that seems unlikely since I reseated it, it works fine once Windows is up, works fine with HDMI, and the prior monitor worked fine using the DP cable.

I'm thinking that maybe something at boot time just can't handle the resolution at 5120x1440.

Any ideas?

thanks.

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