Dell PowerEdge R510 - Front Panel View and Features; NMI Button; System ID Button; Figure 4. Poweredge R510-4 HDD Configuration

Dell
PowerEdge R510 Technical Guide 17
4.3 Front Panel View and Features
Figure 4. PowerEdge R510–4 HDD Configuration
Figure 5. PowerEdge R510–8 HDD Configuration
4.3.1 NMI Button
The Non-Maskable Interrupt (NMI) button can be accessed through a pin hole with a thin object (e.g., the end
of a paperclip). Pressing this button results in a Non-Maskable Interrupt to the CPU, which halts all CPU
operations.
4.3.2 System ID Button
There are 2 System ID buttons—one on the front panel of all servers and one on the back panel of rack-dense
and rackable tower servers. When the System ID buttons are pressed, the System Status/ID LED in the front
and in the back blink, identifying the particular server in a rack full of servers. This button remains functional
during non-operational (that is, standby and shutdown) modes.