Dahua DHI-NVR5432-EI User Manual page 430

5.19.2.4 BPS
You can view current video bit rate (kb/s) and resolution.
Select Main Menu > MAINTAIN > System Info > BPS.
5.19.2.5 Device Status
You can view fan running status such as speed, CPU temperature, and memory.
Select Main Menu > MAINTAIN > System Info > Device Status.
Figure 5-299 BPS
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User's Manual