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sun ultra 10 with sun monitor blank screen on powerup

Posted on 2006-11-15
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Last Modified: 2013-12-27
i recently received a sun ultra 10. i have powered it up with a sun monitor plugged into the on board video port
and the green light on the sun monitor blinks the machine seems to whirr and run with nothing onscreen.
i have tried the stop+A key combination to go into obd to no avail.
any ideas what im doing wrong?
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Question by:ahriman8
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Expert Comment

by:yuzh
ID: 17953603
turn off the monitor and unplug the power cable, and reconnect the monitor, then
try again.

If it doesn't work,  try to use a different monitor to see if there is a problem with the
monitor itself.

The next thing you can try is to reset the NVRAM, by try in <Stop> N key

hold down <Stop> N keys while you turn the power on for a few seconds, see if it can help.
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by:ahriman8
ID: 17953660
thank you for responding!
well i tried the monitor on another ultra 10 that i have and it functions on that one.
i tried the stop+n key combination while it powered up and the screen is blank with green power light blinking as before.
??
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by:ahriman8
ID: 17953772
help?
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yuzh earned 500 total points
ID: 17954206
It could be memory, or CPU or mainborad or graphic card or NVRAM chip problem.

try to re-sit the memory to see if it can help.

if you have another Ultra 10 or Ultra 5, you can try to move the HD to the Ultra 10/5
boot it up and check /var/adm/messages file to see if any error messages.

You can also swap the NVRAM chip to see if you need a replacement.
(ps: the NVRAM in Ultra 5 also works with Ultra 10)

Please read the Ultra 5/10 service manual:
http://docs.sun.com/app/docs/prod/1938#hic

Before open the box.
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Expert Comment

by:yuzh
ID: 17962741
So what was wrong with your Ultra 10?
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by:ahriman8
ID: 17966052
the memory!  i reseated the memory and held my breath...on powerup i had video.

thank you!

i had no idea...the manual states that there could be a ´hardware problem´ which leads to a conundrum of which where and what.

thanks again for directing me in a good direction
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