Problems Starting Up; Server Does Not Power On - Sun Microsystems Sun Fire V60x Manual

2.2.1

Problems Starting Up

If the server does not start up properly, use the information in this section to
diagnose problems.
2.2.1.1

Server Does Not Power On

If the server does not power on, check the following:
Does the main server board have power? Open the chassis lid and check the 5V
■
Standby LED on the baseboard to see if it is illuminated. If your server is plugged
in, this LED should be green. See Figure 3-5, "Fault and Status LEDs on the Server
Board," on page 3-13 for the location of this LED.
Check the power cord connection. The Sun Fire V65x server allows the use of two
■
power supplies, and the system will not power on if one power cord is used and
it is plugged into the wrong power connector.
Is the flex circuit cable, labeled Floppy/FP/IDE, properly seated on the baseboard
■
and backplane? And are any retention clips used to hold the cable in place
properly installed?
If you are using a Sun Fire V60x server, make sure that the power supply is fully
■
seated in the power distribution board connector.
Remove all add-in cards and see if the server boots using just the on-board
■
components. If the server boots successfully, add the cards back in one at a time
with a reboot after each addition to see if you can isolate a suspect card.
Remove and reseat the memory modules. Ensure that you have properly
■
populated the memory modules. On the main board, memory is populated in
pairs. See "Memory" on page 5-9 for memory module installation and placement.
Refer to the silkscreen on the main board for proper memory module placement.
Try using memory modules from a known, compatible, server.
Remove the processor(s) and reseat as a last resort.
■
Caution – Removing and replacing the processors is not recommended and should
only be done as a last resort. This is a procedure that should be attempted by Sun
qualified service personnel. Instructions for removing and replacing processors are
given in the section titled "Replacing a Server CPU and Heatsink" on page 5-16.
Chapter 2 Troubleshooting Specific Problems 2-3