Video Problems; No Video Appears On The Screen - Sun Microsystems Sun Fire V60x Manual

2.2.3

Video Problems

This section gives help on how to isolate and solve video problems.
2.2.3.1

No Video Appears on the Screen

Check the following:
The server board accommodates two processors. If only one processor is installed,
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it must be placed in the CPU 1 socket. The system will not boot if only one
processor is installed and it is in the CPU 2 socket.
Are there any beeps coming from the board and is the floppy drive being
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accessed? If so, your system may have been put in the BIOS recovery mode. This
mode is used to reflash the BIOS in the event it gets corrupted. To enter this
mode, the RCVR\BOOT jumper located along the edge of the board must be set
on the two pins nearest the front of the server. For normal operation, this jumper
must be set on the two pins nearest the back of the server. See Figure 1-1 on
page 1-5 for the location of the RCVR\BOOT jumper.
Make sure the monitor is turned on and the video cable is plugged in completely.
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If you are using a switch box to share a monitor between multiple servers, ensure
that you have switched to the proper server.
Is a video cable plugged into the front panel video connector? If so, the rear video
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connector will be disabled.
Is there an add-in PCI video card? If so, on-board video will be disabled.
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Remove all add-in cards and retry booting with just the on-board components. If
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this is successful, try plugging in the add-in boards one at a time with a reboot
between each addition to isolate a suspect card.
As a last resort, remove and reseat memory modules and processors. Try using
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memory and processors from a known working system.
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.
Video can be disabled on the server by means of the BIOS setup. If you are using
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an add-in video card, make sure your monitor is plugged into the add-in video
card. If you suspect that your video controller may be disabled through the BIOS
setup, you can attach to the system through a server management connection
(either through the serial COM2 port or the LAN connector) and redirect the BIOS
setup screen to a remote console to check. For details on how to do this, refer to
"Configuring an External Serial Console" on page 4-17.
2-10 Sun Fire V60x and Sun Fire V65x Servers—Troubleshooting Guide • November 2003