Dahua DVR - HDCVI Locking up

Tondar · 2025-02-27T01:42:54+00:00

Hey all, I have an older Dahua HDCVI DVR that I got in 2014. It ran great for the last 10 years but is now having problem after problem. The main CPU fan started making noise and right before I had the parts to replace it was the first time the DVR locked up. It just seemed to be offline but the fans were still on and the TV hooked to the HDMI port was showing a single camera feed but the mouse was frozen and it wouldn't respond. I had to turn off/on the power to get it back up and running. Since that time I have replaced all the fans cleaned out the dust and cleaned the contacts on the purple WD hard drive. (I'll have a separate post on the Noctua fans I installed... interesting observation). Now, it will run fine for a couple days to a week but then locks up. Some times it locks up with the buzzer on solid - this happened at 4 in the morning:angry:. Other times I don't even notice until I try to check the cameras on my phone or through PSS and there's no connection to the DVR, I go to the DVR and look at the TV connected to the HDMI port and there's nothing there like no signal to the TV and the DVR has to have the power cycled to get it back. At this point it's not a reliable system I just don't know how to find out what is happening.... any ideas/thoughts? Thank you for any help provided!!