Chapter 4
Diagnostics
30
•
Power-on self test (POST) codes - These display in normal video (white text on black
background) and may be a text message or an alpha numeric code. If an error with a text
message occurs during the POST, details of the error are displayed. Follow the instructions on
the screen. If an alpha-numeric code appears, refer to Table 4-2 later in this chapter
.
•
Beep Codes – These are series of audible beeps, which occur during the boot process before
the video display can initialize allowing the visual messages of the POST routines to appear.
Refer to the Table 4-3 later in this chapter
No Error Messages Displayed On Screen
General Checks:
1. Listen for beep codes.
If you hear a series of beeps refer to Beep Codes in Table 4-3 later in this chapter.
If no beep codes are heard, continue with the next step.
2. Verify all external cables and power cables are firmly plugged in.
3. Verify the power outlet is working.
4. Verify the Netserver and monitor are turned on.
The power-on indicator should be illuminated.
5. Verify the display's contrast and brightness settings are correct.
6. Verify all internal cables are properly connected and all boards firmly seated.
7. Verify the processor and its heatsink are fully seated in its socket on the system board.
8. Verify the DIMMs are installed correctly and fully seated.
9. Verify the DIMM notches are aligned to the keys in the DIMM connector.
After Installing an Accessory:
1. Turn off the monitor, the Netserver, and any external devices.
2. Unplug all cables from the power outlet.
3. Remove the cover.
4. Check the following:
◊
If you have installed an accessory board, verify the board is firmly seated in its slot and any
switches or jumpers on the accessory board are properly set.
Refer to the documentation provided with accessory board.
◊
Check all internal cabling and connections.
◊
If you have changed any switches on the system board, verify each one is properly set.
NOTE
Only two of the eight switches on configuration switch are used.
5. Replace the cover and connect all cables.
6. Turn on the monitor and Netserver.
7. If the Netserver still does not work:
◊
Repeat steps 1, 2, and 3 of this section.
