Dell POWEREDGE 1855 - Manual (Page 42)

The server module board contains up to two microprocessors, six memory modules, interface connectors for the hard drives, interface connectors for a
daughter card, and a dual-Gigabit NIC. Up to two SCSI hard drives connect to a controller on the server module board. If two hard drives are installed, you
have the option of enabling integrated mirroring. See the Configuration Guide. This feature enables you to have RAID 1 capabilities.
During an installation or troubleshooting procedure, you may be required to change a switch setting. For more information, see " DIP Switch Settings and
Connectors ."
Troubleshooting Server Module Memory
Problem
l Faulty memory module
l Faulty server module board
Action
1. Restart the server module.
a. Press the power button once to turn off the server module.
b. Press the power button again to apply power to the server module.
If no error messages appear, go to step 8 .
2. Enter the System Setup program and check the system memory setting. See "Using the System Setup Program" in your User's Guide.
If the amount of memory installed matches the system memory setting, go to step 8 .
3. Remove the server module. See " Removing a Server Module " in "Installing System Options."
4. Open the server module. See " Opening the Server Module " in "Installing System Options."
5. Reseat the memory modules in their sockets. See " Installing Memory Modules " in "Installing System Options."
6. Close the server module. See " Closing the Server Module " in "Installing System Options."
7. Install the server module. See " Installing a Server Module " in "Installing System Options."
8. Run the system memory test in the system diagnostics. See " Running System Diagnostics ."
If the test fails, see " Getting Help ."
Troubleshooting Hard Drives
CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as
authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not
authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product.
NOTE: Before performing the following procedure, ensure that you have installed the memory modules according to the " General Memory Module
Installation Guidelines " in "Installing System Options."