Switches and Buttons Reference

The server front panel and back panels provide access to the following switches and buttons.

Button	Description	Links
Two front panel On/Standby buttons	Press On/Standby button A to control server power on System A SMOD0 while local to (at) the server FIM. Press On/Standby button B to control server power on System B SMOD1 while local to (at) the server FIM. Caution: Exercise caution on dual systems.	Power On the Server Powering Down the Server
Two front panel Locate Buttons/LEDs	Press the buttons on the server front panel FIM to manage the SMOD0 or SMOD1 Locate Button/LED indicator locally. To deactivate (or activate) the Locate Button/LED, press and release the button.	Managing the Locate Button/LED
Two back panel Locate Buttons/LEDs	Press the buttons on the server back panel SMODs to manage the SMOD0 or SMOD1 Locate Button/LED indicator locally. To deactivate (or activate) the Locate Button/LED, press and release the button.	Managing the Locate Button/LED
SP Reset	Service processor (SP) pinhole reset button located on the server back panel The SP reset button allows you to manually reset the SP. Use the reset button if the SP becomes unresponsive, requires a reset, or fails to boot into standby power mode (activating the button requires the use of a stylus).	Back Panel Pinhole Switches
Host Warm Reset	Recessed pinhole button located on the server back panel The Host Warm Reset button allows you to perform an immediate reboot of the server (activating the button requires the use of a stylus).	Back Panel Pinhole Switches
NMI pinhole button	Non-maskable Interrupt recessed pinhole button located on the server back panel The NMI button is used by Service personnel only. Do not press.	Back Panel Pinhole Switches
CMOD internal Fault Remind button	Each CMOD has a motherboard-mounted Fault Remind button. The button is part of the CMOD Fault Remind circuit. The circuit is charged and allows you to identify a failed DIMM or CPU after the CMOD has been removed for the server. You must remove the CMOD from the front panel to access the button.	Servicing CPU Module (CMOD) Components (FRU) CPU Module (CMOD) Overview Troubleshooting Using a CMOD Fault Remind Test Circuit
Sixteen (16) recessed ATTN (attention) buttons (two on each DPCC)	The ATTN buttons are used to initiate DPCC removal and install. Before removing a DPCC, use a stylus to press both ATTN buttons. After installing a DPCC that contains a PCIe card, press the buttons again.	Servicing PCIe Cards and Carriers (CRU) Dual PCIe Card Carrier (DPCC) Indicators Back Panel Components