DVR surveillance does not appear and prompts camera mask

• If it is a better camera, the lens would normally be masked responsive and intuitive display on the screen, if it is a poor disk video recorder, it will shown all the No screen display as the lens mask, that is camera mask. Therefore, we need to judge according to the device you used.

  Monitor screen prompts camera mask mainly caused by your computer configuration and system settings. First you need to determine whether the CPU and graphics card is quite good. In general, the relatively new CPU be able to meet the requirements, it is best to use dual-core. Memory shall be not less than 1G in XP system; VISTA and WIN7 do not recommend installing monitoring system, because the compatibility of the two systems is not very good. Graphics card should be independent, at least 256 M of dedicated graphics memory. Hard disk space should not less than 30G.

  When meet these conditions, you need to see the number of video channel and video capture card, video capture card is a hard compression or soft compression. If you are using hardware compression video capture card, it should be basically meet the requirements of the hardware. If you are using a soft compression card, then a pause, or a little more than 8-way image frame-dropping is normal. You just open the Task Manager to see if CPU load is not more than 90%, and then would know.

  Apart from this, you have to readjust the virtual memory, as far as possible adjusted to the actual physical memory two times and fixed use, not dynamically allocated. Also check your video card drivers, motherboard driver is installed completed. These software factors could seriously affect the assembly of the DVR device you used.
  If your DVR is always full screen disappears, only displayed each screen camera mask information, then please check your power, including the camera power supply and the DVR power supply. If the camera is focused on supply may be too low voltage or the connection is bad, if not focus on power supply, please replacing a number of transformers.
  If the video capture card you insert more than one, computer power will increase a lot.