After several years using the integrated graphics on my Ryzen 5 5600G system, I'm trying to add an Intel Arc B580 Challenger 12GB. My setup includes an Asus Prime B450M-K II motherboard, a be quiet! Pure Power 12 1000W power supply, a 1TB Samsung SSD, 16GB of G.Skill Ripjaws RAM, and Windows 10. The card powers on, its fans spin, and the RGB works. The Intel graphics driver only recognized it after I manually added it through Device Manager, but I get no display from either HDMI or any of the three DisplayPort outputs once Windows starts. I can access the motherboard BIOS through the GPU's HDMI output, so the card appears to work before the operating system loads. I have already updated the BIOS and confirmed the power supply and physical connection seem fine. Is there a compatibility setting or component upgrade I'm missing, or could the card or driver be defective?
3 Answers
There shouldn’t be a special hardware upgrade required for this combination. The 5600G’s PCIe 3.0 support can reduce peak performance slightly, but it is still electrically compatible with the B580. If UEFI mode, Resizable BAR, Above 4G Decoding, and the proper Intel driver are all configured and Windows still gives no output, test the card in another system or try another known-good cable and monitor. At that point, a defective GPU becomes more likely than a missing component upgrade.
A bottleneck only describes a component limiting performance in a particular game or application; it wouldn’t cause all display outputs to stop working. Since the card works in the BIOS, Windows may be switching back to the integrated graphics or loading an incorrect driver. Temporarily remove the old graphics drivers with a clean-driver utility, connect the monitor to the B580, and reinstall the Intel driver from scratch. Also verify that Windows 10 is fully updated and that the card is seated correctly with its required power connector attached.
Your parts should be compatible, and this doesn’t sound like a normal performance bottleneck. The Ryzen 5 5600G and B450 board may limit the card to PCIe 3.0, but that should not prevent it from displaying an image. First check that Resizable BAR is enabled in the BIOS, since Intel Arc cards can perform very poorly without it. You may also need to disable CSM and use full UEFI mode, then set the PCIe graphics card as the primary display. In Windows, install the current Intel Arc driver cleanly rather than manually adding the device in Device Manager.
GPU-Z can confirm whether Resizable BAR and Above 4G Decoding are active. If the BIOS shows video but Windows does not, I’d focus on UEFI/CSM settings and a clean driver installation rather than replacing the motherboard or power supply.
I can reach the motherboard BIOS through the B580, but Windows still gives no image. I haven’t been able to find the PCIe settings yet, so I’ll check the UEFI, CSM, and ReBAR options before assuming the card is faulty.