Intel DZ77RE-75K Technical Product Specification - Page 42
Power Supervisor, 12.2.11, 5 V Standby Power Indicator LED, CAUTION - specs
View all Intel DZ77RE-75K manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 42 highlights
Intel Desktop Board DZ77RE-75K Technical Product Specification 1.12.2.10 Power Supervisor The Power Supervisor actively monitors the input voltages from the power supply and protects the board and any attached peripherals from electrical overstress and possible physical damage. The Power Supervisor will activate if it detects the power supply voltage rails have deviated outside the current ATX power supply specification and safe operating levels. If the Power Supervisor detects an out of spec voltage, the following will happen: 1. The board will be powered down immediately to protect circuits from electrical overstress and possible physical damage. 2. A red warning LED (see Figure 1, Y) on the board will activate as a visual cue. 3. During the next power on, a message will be displayed on the screen to notify the user that the power supply voltage rails have deviated outside the current ATX power supply specification and safe operating levels. 4. A message will be added to the BIOS Event Log for each event that takes place until the BIOS Event Log is cleared. 1.12.2.11 +5 V Standby Power Indicator LED The +5 V standby power indicator LED shows that power is still present even when the computer appears to be off. Figure 10 shows the location of the standby power LED. CAUTION If AC power has been switched off and the standby power indicator is still lit, disconnect the power cord before installing or removing any devices connected to the board. Failure to do so could damage the board and any attached devices. Figure 8. Location of the Standby Power LED 42