Acer Altos R710 - Manual (Page 161)

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• Remove the memory DIMMs and re-seat them.
• Make sure the processor(s) comply with the system requirements.
• Make sure the processor(s) have been populated according to the system
requirements.
• Remove the processor(s) and re-seat them.
• Make sure the chassis standoffs are installed only below mounting holes.
Misplaced standoffs can contact the pins on the bottom of the server
board and cause a short.
No Characters Appear on Screen
Check the following:
• Is the keyboard functioning? Test it by turning the “Num Lock” function
on and off to make sure the Num Lock light is functioning.
• Is the video monitor plugged in and turned on? If you are using a switch
box, is it switched to the correct system?
• Are the brightness and contrast controls on the video monitor properly
adjusted?
• Is the video monitor signal cable properly installed?
• Does this video monitor work correctly if plugged into a different system?
• Is the onboard video controller enabled in the BIOS?
• Remove all add-in cards and see if the video returns. If successful, add the
cards back in one at a time with a reboot between each addition.
• Make sure the memory DIMMs comply with the system requirements.
• Make sure the memory DIMMs have been populated according to the
system requirements.
• Remove the memory DIMMs and re-seat them.
• Make sure the processor(s) comply with the system requirements.
• Make sure the processor(s) have been populated according to the system
requirements.
• Remove the processor(s) and re-seat them.
If you are using an add-in video controller board, do the following:
1 Verify that the video works using the onboard video controller.
2 Verify that the video controller board is fully seated in the server
board connector.
3 Reboot the system for changes to take effect.