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I have lost two rj45 jacks to rust. They can be repaired but it's painful. I'm assuming you are using poe 1. Cut the wire to the rj45 with enough space to trace the pins 2. Use a continuity tester to trace colors to pins. There are wiring diagrams online but I found it easier to trace. 3. Wire...

Thanks. I appreciate the help.

I baught a used system off the list, optiplex 7400 with an i7. Motherboard is 2 channel. I'm expecting to run 7 cameras (some of this is a guess) 1 x 4k at 30 fps 1 x 4mp at 25 mp2 3 x 4k at 20 fps 2 x 4 mp at 20 fps Looks like 16 gb, 2x8gb would be my useful cap. Worth upgrading or should I...

My first build. I picked up an i76700 and I'm thinking I should upgrade the existing 8gb memory. Is their value in going to 32 gb (4x8 gb)? Or is 16 (4x 4gb) enough? Thanks in advance.