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Troubleshooting Your System
Troubleshooting the NVRAM Backup Battery
Each blade contains a battery that maintains the blade configuration, date,
and time information in NVRAM when you turn off the blade. You may need
to replace the battery if an incorrect time or date is displayed during the boot
routine.
You can operate the blade without a battery; however, the blade configuration
information maintained by the battery in NVRAM is erased each time you
remove power from the blade. Therefore, you must re-enter the system
configuration information and reset the options each time the blade boots
until you replace the battery.
1
Re-enter the time and date through the System Setup program. See "Using
the System Setup Program and UEFI Boot Manager" on page 137.
2
Remove the blade for at least one hour. See "Removing a Blade" on
page 155.
3
Install the blade. See "Installing a Blade" on page 158.
4
Enter the System Setup program.
If the date and time are not correct in the System Setup program, replace
the battery. See "Blade System Board NVRAM Backup Battery" on
page 265.
If the problem is not resolved by replacing the battery, see "Getting Help"
on page 361.
NOTE:
If the blade is turned off for long periods of time (for weeks or months), the
NVRAM may lose its system configuration information. This situation is caused by a
defective battery.
NOTE:
Some software may cause the blade’s time to speed up or slow down. If the
blade seems to operate normally except for the time kept in the System Setup
program, the problem may be caused by software rather than by a defective
battery.
Содержание PowerEdge M620
Страница 1: ...Dell PowerEdge Modular Systems Hardware Owner s Manual ...
Страница 39: ...About Your System 39 Figure 1 19 Identifying Midplane Version 1 1 1 midplane identification label 2 1 ...
Страница 40: ...40 About Your System Figure 1 20 Identifying Midplane Version 1 0 1 midplane identification label 2 1 ...
Страница 51: ...About Your System 51 Figure 1 23 CMC Daisy Chaining 1 management network 2 secondary CMC 3 primary CMC 1 2 3 ...
Страница 60: ...60 About Your System Figure 1 24 Example of PowerEdge M610x Port Mapping of Blade 2 ...
Страница 68: ...68 About Your System Figure 1 26 Example of Half Height Blade Port Mapping ...
Страница 136: ...136 About Your System ...
Страница 286: ...286 Installing Blade Components ...
Страница 308: ...308 Installing Enclosure Components ...
Страница 330: ...330 Running System Diagnostics ...
Страница 360: ...360 System Board Information ...
Страница 362: ...362 Getting Help ...
Страница 368: ...Index 368 V video controller installing 273 ...