noise

Hi. I read another thread on reducing fan noise on DS-7608NI-I2/8P and wanted to share some findings concerning POWER reduction as well as noise. Since the NVR is on 24/7 this is important to me. In my installation, I do not use the PoE since cameras are on my main LAN and powered from a...

I've got some old Dahua IPC-HDW4631C-A 's, and 3 of them stopped working within about a week or so's time. They are originally gray market cameras, and are a good 5 or so years old at this point. Up until failure (some months back at this point), they've worked as well as expected. The odd...