The GPU is brand new but isn't displaying any video output.
The GPU is brand new but isn't displaying any video output.
Hi there, I was searching through forum pages but didn’t find anything matching my problem, so I wrote this new message. The main issue was assembling my first PC and installing the Galax RTX 3070 LHR GPU. Even though the fans are spinning, no video appears on the screen. The VGA indicator shows white light, which according to the manual suggests a graphics problem. I attempted several reinstalls of the GPU and all components—SSD, RAM, fans, CPU—but nothing resolved it. Everything else seems fine: chassis fans, CPU cooler, motherboard LEDs, and even the GPU fans are active. When I connected the monitor to my laptop, it worked perfectly, ruling out a display or cable issue. I confirmed the 8-pin PCIe connector is properly plugged in, along with the ATX power and data cables. Upon inspecting the GPU, I noticed some pins appear shorter than others. While some forums mention this as normal, I’m unsure if it’s the root cause. Could you share any advice? Also, could there be other reasons for no video output and VGA issues? My specs are: CPU i5-12400f, GPU GALAX GeForce RTX 3070 LHR (1-Click OC), motherboard Asus TUF Gaming B660m-Plus, Wi-Fi RAM Corsair Vengeance LPX 16GB DDR4-3200, SSD Crucial P2 NVME m.2 1TB, PSU Corsair CV650 80+ Bronze, CPU cooler. I’m really disappointed and this project cost a lot of money. Any suggestions would be greatly appreciated. Thanks.
It might also be RAM, you need two 8-inch units instead of one 16-inch. Verify your motherboard manual to confirm the correct placement, typically near the CPU in the second slot for single-channel setups. Also, is your board compatible with DDR4? You didn’t mention that.
Ensure the display cable connects to the graphics card, not the motherboard. Usually, these ports are laid out side by side, while motherboard ports sit upright. Explore alternative ports on your graphics card if needed. Consider switching between HDMI and DP for better compatibility. Verify that your monitor is set to the correct port—HDMI input should be selected, though auto-detection may require adjustment. Allow the PC a few minutes after startup; new or second-hand graphics cards might take longer to initialize.
Thank you, I checked everything except the DP port since I don’t have a DP cable right now. No display appears.
Hey everyone! Thanks for your feedback. After researching, I discovered that clearing the CMOS can resolve similar problems. It worked for me—my PC booted up and I successfully installed Windows 10. Now, to confirm the fix, would you mind testing the system further? This helps ensure the issue is truly resolved and not just a one-time success. Appreciate your help!
It's worth noting that time will reveal the truth. It might be challenging to determine if your GPU is stable by tackling tough tasks. A heavy stress test, like Furmark, can help assess its performance.