Signal loss on a friend's monitor is unexpected and needs attention.
Signal loss on a friend's monitor is unexpected and needs attention.
He recently installed an RTX 3060 Ti and noticed his monitor would shut down under certain conditions, even when using speakers off. This also occurred during light tasks like streaming or drawing. His tower stayed on normally, but the issue appeared with a 32" LG TV (non-OLED) and with a different HDMI cable. He tried lowering the resolution but didn’t see improvement. His previous GPU was an ASUS 1050 Ti 4GB, which worked fine. His current specs include 8GB RAM, two SSDs, and updated drivers. He suspects the problem might be related to the HDMI cable quality or a weak power supply affecting the monitor. He’s considering better cables and is unsure if his PSU could handle the load.
Consider using a different display cable, perhaps switching to a DisplayPort instead. HDMI to DP converter might work too. It could be a bad HDMI port on the card. The one you bought seems too big for the job. Your monitor supports HDMI 1.4 and is a 1080p 60Hz model that can handle as low as HDMI 1.1. Another chance is the driver crashing, which might force the GPU out and then reconnect quickly. It could also be a problem with the monitor itself. Ensure the power cable is securely connected to the monitor—loose connections sometimes cause shutdowns and restarts.
He now has no signal from his monitor and TV. He used a brand new 2m UGREEN HDMI 2.1 cable for possible future upgrades, but nothing changed. I advised him to check if the issue lies with his old GPU. He’s planning to replace the power supply unit—specifically a Corrair RMX 1000W, as there wasn’t a close 850W option nearby. I’ll keep you updated on what happens. After these attempts, I expect three possibilities: the 3000 GPU was deteriorating and failed, the PCI-E 4.0 card was installed in a PCI-E 3.0 slot (it might work but with reduced performance), or the GPU may have been improperly seated and triggered a beep from the motherboard. I’ll let you know the outcome once more. Thanks for your support so far.
Consider these actions before your friend brings it to a technician. First, run DDU - Display Driver Uninstaller (version 18.1.2.1) while in Safe boot (Win+R > msconfig > Boot Tab > Enable Safe boot). After that, install the newest drivers using the Nvidia app - Download NVIDIA App for Gamers and Creators | NVIDIA. Next, try reseating the GPU if possible. A PSU issue shouldn't be the problem, as shown by testing a 7800XT with a 550W power supply—it simply turned off.