Blank screen on monitor

nykorchuck

Honorable
Apr 20, 2013
2
0
10,510
Dell Optiplex gx620 mini tower - blank screen on monitor, no lights at all, checked hard drive on similar computer, checked out ok, everything seems all right but monitor is blank
 
You generally don't swap hard drives between PC's when troubleshooting the monitor.

When a MONITOR isn't working, the troubleshooting is this:
Try a different PC with monitor.

If the monitor works, the problem is the PC.

At this point, it's more difficult:
1. Does the PC even turn on?
2. If it turns on, is there an internal graphics card you can swap?

*There's not enough information provided for us to help. However, your model probably had both INTEGRATED graphics as well as addon graphic card options.

I also don't understand what you mean when you say "the PC checked out okay... the monitor wasn't working." ??? Was the monitor working with the other PC or not? If not, how did the other PC "check out"? So I'm a little confused here.