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Used Dell Gaming PC Suddenly Has No Display After Windows Setup

September 21, 2026 2 answers
Asked by MellowPine47
I bought an older Dell G5 5000 for playing my Steam backlog and indie games. It originally displayed the Windows 11 setup screen and let me enter the BIOS, so the hardware appeared to be working. The system has an i7-10700K, GTX 1660 Super, 16 GB DDR4, a 256 GB NVMe SSD, a 1 TB SATA hard drive, a Dell 360 W power supply, and a Dell M6C7G motherboard. The motherboard has no video outputs, so the monitor must be connected to the dedicated graphics card. After completing the initial Windows setup, the computer stayed on a black "Just a moment" screen for more than 30 minutes. I forced it to power off, and since then the monitor wakes briefly but reports "No signal" and goes back to sleep. I tried HDMI and DisplayPort, moved the RAM, tested the system without RAM, reset the CMOS, confirmed the keyboard lock lights respond, and reseated the graphics card and its power cable. Ctrl+Esc restarts the tower, but there is still no picture. Win+Ctrl+Shift+B also has no effect. Could forcing the shutdown have damaged or corrupted the GTX 1660 Super? Before buying a replacement card, is there anything else I can test?
Dell G5 5000 graphics card GTX 1660 Super Hardware no display PC troubleshooting Windows 11

Answers

CobaltMango21
A Windows installation USB is only useful once the system can complete POST and show the boot menu. Since you can’t currently see the BIOS, creating an installer won’t solve the immediate problem. If possible, test the card with another known-good monitor and cable, and test another graphics card in this PC before spending money on a replacement.
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QuietHarbor8
The integrated graphics suggestion won’t help here because, even though the i7-10700K has an iGPU, this Dell motherboard doesn’t provide HDMI or DisplayPort outputs. The monitor has to stay connected to the GTX 1660 Super. Also, a forced shutdown during Windows setup could corrupt Windows, but it normally would not prevent the BIOS screen from appearing. If there is absolutely no BIOS display, focus on the GPU, its power connection, the cable, and the monitor rather than reinstalling Windows.
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