Clearing Cmos - Intel SR870BN4 - Server Platform - 0 MB RAM Product Manual

Clearing CMOS

WARNING
Make sure that the rack is anchored securely so it will not tilt forward
when the server chassis is extended. A crush hazard exists should the
rack tilt forward which could cause serious injury.
The user must clear CMOS after the user completes the IFlash64 BIOS update. Clearing CMOS
involves changing a jumper setting on the I/O riser card, restarting the server with the new jumper setting,
restoring the jumper setting to its original position, and restarting the server a final time.
To clear CMOS follow these steps:
(Clearing CMOS by DIP switch)
1. Power down the server by pressing and holding the power button on the front control panel.
The user might have to hold the power button down for several seconds.
2. Remove standby power from the server by unplugging both power cords from the system and
removing them from the server.
3. Remove the screw that secures the non-hot-plug I/O cover over the I/O riser card and slide the
cover off.
4. Remove the I/O riser card by following the procedure described in "Removing the I/O Riser
Card" on page 187.
5. Position switch #3 on the five-position DIP switch at location S8A1 to the ON position as
shown in Figure 137 on page 265.
6. Replace the I/O riser card by following the procedure described in "Replacing the I/O Riser
Card" on page 187.s
7. Reinstall the server's power cords and plug them into the power source.
8. Power on the server by pressing the power button on the front control panel.
9. Wait for the message 'NVRAM cleared by jumper' to appear. When the options 'Hit <F1> to
load defaults or <F2> to run SETUP or <ESC> to continue, hit <F1> to load the defaults.
After the user clears CMOS, the switch setting must be restored to it's "OFF" position and the
server restarted. Follow these steps to return the switch to the default position and reboot the
system.
1. Power down the system by pressing and holding the power button on the front control panel.
The user might have to hold down the power button for several seconds.
2. Remove standby power from the server by unplugging both the power cords from the power
source and removing them from the server.
3. Remove the I/O riser card by following the procedure described in "Removing the I/O Riser
Card on page 187.
4. Reposition jumper switch #3 on the 5-position switch at location S8A1 so that it is in the
"OFF" position. See Figure 137 on page 265 for the default position.
5. Replace the I/O riser card by following the procedure described in "Installing the I/O Riser
Card" on page 189.
6. Close and secure the rear part of the top cover.
7. Reinstall the power cords and plug them into the power source.
8. If the chassis is rack mounted, push the system back into the cabinet rack.
9. Power on the server by pressing and holding the power button on the front control panel.
72 Intel® SR870BN4 Server System Product Guide