Making Additional Adjustments to System Time
To make an additional adjustment to system time, do the following:
1.Wait 24 hours—or a multiple of 24 hours if necessary—since the last time adjustment was made, and then compare the system time displayed on any monitor in the system with the RTC time. Note the difference in time for a 24-hour period and whether the system time is ahead of or behind RTC time.
2.Using the CM9760-KBD, set system time at the top of the hour in 24-hour format when the RTC reaches the top of the hour.
3.At the CM9700-NW1 diagnostic screen, press Alt+L.
The screen displays the latest time adjustment that was made. For example, if a time adjustment of –2:30.0 was entered to slow system time 2 minutes and 30 seconds, the screen displays the following:
**********TIME ADJUSTMENT*********
Last Time Adjustment –2:30.0
Total Time Adjustment –2:30.0
Format Example | | | |
+10:20.5 | Adds | 10 | min | 20.5 seconds per day |
-5:10.61 | Subtracts 5 | min | 10.61 seconds per day |
***********ESC TO CANCEL********** =>
4.At the => system prompt, enter a new time adjustment based on adding or subtracting time from the original time adjustment. For example, when comparing system time with RTC time after five 24-hour periods have passed since the original time adjustment was made and determining that system time is running 10 seconds slow—an average of 2 seconds slower for each 24 hours of elapsed time—you can change the original time adjustment by adding 2 seconds. If the original time adjustment was –02:30.00, the following time adjustment must be entered as follows to add 2 seconds:
–02:28.0
Note that –02.28.0 is derived from the following equation: [(–02:30.0) + (00:02.0)] = –02.28.0
5.Press Enter.
The adjustment is displayed. For example, for the adjustment of –02.28.0 that was made in step 4, the following line appears: Last Adj. –2:28.0 Total –4.58.0
Note that the total time adjustment is –4.58.0.
6.If desired, press Alt+N to check the system time.
The line containing the system time appears similar to the following:
Sat June 25 15:40:18 2005 CM9700 NIU Ver xxx xxx Setup file:2nodes.niu
7.If necessary, continue to make additional time adjustments until the system clock and RTC are synchronized.
NOTE: The time adjustments that are made to system time are temporary time adjustments. If you reboot the CM9700-NW1 by pressing Ctrl+Alt+Del or stop operation of the CM9700-NW1 by pressing Ctrl+Q, the time adjustment values revert to 0:0.0. As a result, you must edit the net.bat file to permanently program the total time adjustment indicated on the diagnostic screen after the final time adjustment is made. Instructions for editing the net.bat file are provided in the Editing the Net.bat File to Permanently Adjust System Time section.
