No signal from any GPU. Tags: Motherboards GPUs Last response: February 2, 2012 2:18 PM in Motherboards Share imarex February 1, 2012 6:52:05 PM Hello. I'm helping a friend with his PC trouble. Basically, I start up the PC. There is no signal. No response whatsoever. No beeping no anything. All the fans are on, but there is no signal from GPU. I tested the gpu on my own pc and it works. I tested my gpu on this pc and it still didn't work. So. I guess it's something with the motherboard. (which has no integrated graphics) I put in Ubuntu live cd, just to test for any response, got nothing. I think this might be the motherboard, but I'm not sure. Any help would be appreciated. More about : signal gpu mhokett February 1, 2012 7:54:40 PM We need a little more info to be helpful. What Motherboard, GPU and powersupply are in your friends PC? imarex February 2, 2012 10:32:55 AM MB: Biostar NF520-A2. CPU: Either AMD Athlon or Phenom. Don't know. I don't really want to remove the heatsink. PSU: Chieftec ANP-405A12 405W GPU: GIGABYTE GeForce 8400GS Related resources New gpu , windows 8, no signal - Forum Sudden "No Input Signal " on old GPU - Forum No signal to monitor when using discrete GPU - Forum No signal to monitor after installing GPU - Forum Getting No Signal & no Post, after installing gpu drivers - Forum Can't find your answer ? Ask ! Get the answer totalknowledge February 2, 2012 10:53:19 AM Its sounds like its not even posting. Try reseating everything, and start with the bear minimum. Motherboard, CPU, 1 stick of Ram, external video only if there is no onboard video. imarex February 2, 2012 1:05:01 PM I reseated the CPU. It's all good now. I should have tried that earlier. Thanks. This can be closed now. geekapproved a b V Motherboard February 2, 2012 2:06:59 PM How could the cpu get unseated???? It's locked down and the heatsink is locked down... imarex February 2, 2012 2:18:18 PM I have no idea. But I removed it. Put it back. Reapplied thermal grease and it works. Can't find your answer ? Ask ! Publish Related resources: ForumMonitor gets no signal but not a bad gpu ForumGetting no dvi signal but gpu is good ForumMonitor no signal when gpu is plugged in ForumNo signal problem when GPU is connected ForumNew GPU , No Signal ForumNo output signal from gpu to monitor ForumErratic display signal turned to no display, even with new GPU . ForumComputer freezes, video signal drops, and GPU fan jumps to max speed. Forum(Fixed!) Sudden No Signal on monitor, suspect GPU ForumFirst GPU bootup, no signal ForumNo signal to monitor and possible PSU issue or gpu ForumIntel i5 3550p & AS Rock Z77 PRO 3 ForumHDMI sound from Asus Mobo ForumHow do we recover information from hard ! HELP ForumUSB3 PCIX USB2 HD AutoPlay from sleep mode More resources Read discussions in other Motherboards categories BIOS Boot Chipsets ASRock Asus Chaintech DFI Elitegroup FIC Foxconn Gigabyte Intel MSI-Microstar !