the monitor shows no signal on the PC yet a yes signal appears on the laptop
the monitor shows no signal on the PC yet a yes signal appears on the laptop
Hello! I purchased a PC a few months ago in England and had to relocate to Mainland China, so it was shipped there. The case arrived slightly damaged but still functional—it powers on without a monitor. When I connected the monitor, it didn’t receive any signals. The PC runs normally otherwise, with only normal fan noise. I tested all three DP ports and the graphics card’s HDMI port, but nothing worked. The power cable and fans are secure, and it also works with my laptop. Now I’m puzzled about the issue. It might be related to the GPU, though I’m skeptical since I carried the graphics card in my luggage. The manual says it supports 100V-240V, so 220V in China shouldn’t be an issue, and I used an adapter. There’s another odd detail: the power button on the case blinks rapidly, which hasn’t happened before when the PC is working properly. I don’t have the tools or expertise to diagnose further, so I’m reaching out for advice. This PC holds a lot of important data, and replacing it would be costly. Here’s a summary of my setup: CPU – Intel i5 12400F; Motherboard – ASUS Z690 Prime; RAM – Kingston Fury Beast DDR4 16G*2; GPU – MSI RTX 3060Ti; PSU – Corsair TX750M; Storage – Samsung 970Evo Plus 1T + WD SN770 1T; Case – Lianli O11 Air Mini.
Typically around the area where the 24-pin power cable enters the motherboard, you'll find tiny LED indicators showing which component—CPU, RAM, GPU, or drive—is halting the PC's operation. During transit, the GPU might be pushed out of its PCI slot on the motherboard. I'd verify this is correct; sometimes it can harm the card, so removing the GPU and reinstalling might be necessary.
The blinking power button might simply indicate it isn't functioning correctly.
Also verify the RAM. It’s easy to pull out during shipping, so ensure the slots are completely secured—click at both the top and bottom when fully placed.
one of the RAM modules is actually loose, so I clicked it back in, turned the PC on and nothing happened. At that moment I thought it was wrong with the GPU, so I removed it and checked—nothing bent or broken. I put it back in again. Still nothing. This time the power button is blinking more slowly. I believe it’s trying to communicate something, so I need to get the manual.
Remove one RAM stick or install only two, test each slot with a single stick. A damaged RAM might show up this way. The GPU can appear fine even if it was jolted; tiny solder joints may crack. This isn't necessarily what you're seeing, but possible. If the RAM doesn't work after testing, assume it's faulty.
yeah I don't think its the GPU... I actually brought it with me on the plane, there could be possibility of damaging, but I don't think its likely. I just checked and I found out that the heatsink of the cooler is actually like really bent, but I don't see any damages to the motherboard, plus the system was able to boot there is just no output, so I don't think it was the motherboard(unless in some cases PCs can boot with a broken motherboard?) I just bought a new 4070 cuz I've been wanting to change GPU lately, It should be arriving in a few days so we'll see if the GPU is really broken. I will also try the memory thingy, thanks!