help still needed, more data sparc 10 crash - help needed

help still needed, more data sparc 10 crash - help needed

Post by awou » Thu, 17 Jul 2003 07:17:24


In article < XXXX@XXXXX.COM >,

:Hello,
:
:> my sparc 10 crashed today. the main symptom is a lack of symptoms.
:>
:> i removed the keyboard and monitor, attached them to another
:> sparcsattion and it boots just fine.
:>
:> if i tip to the dead sparc 10, i connect but get no response when i
:> power reset.
:>
:> when i reattach the monitor and keyboard, and power on with stop-d
:> keys held down, the leds on the keyboard go on and off two times, then
:> everything halts with only the caps lock key illuminated. thus the
:> POST does not run. the monitor's signal light keeps flashing - it is a
:> GM 20D10.
:>
:> is this a power supply failure, a boot prom failure or an nvram
:> failure? any clues as to how to test?
:>
:
:Try to remove all internals HD... It could be an hd controler failure
:that shortcut the main power supply. I've experienced this some months
:ago in my SS20 with a 4,5 Gb Seagate drive.
:
:Hope this will help :)
:--
:@+ Yann Marigo
:Le mirroir officiel de obsolyte.com : http://www.yqcomputer.com/


for the following reasons, i do not believe it is the power supply:

i reported the crash a few days ago. i now have the maintenance
manual, and it confirms that the power supply is fine: both test
criteria are satisfied: the led on front of the case lights up, and
the keyboard emits its desired aqueak.

however, there is no output either to the monitor or to serial port A
when i power on while holding down stop-d. the heyboard LEDs go on and
off twice, and then i am left with the cap locks led on permanently,
and no other signs of life.

this leads me to think that the boot PROM is fried. would a fried boot
prom cause a crash in mid-operation? a fried boot PROM would fail in a
manner similar to what i have described.

--
a wise person once said "what good is a smart bomb if you have a dumb
president?" - aaron mcgruder

to email me, delete blackhole. from my return address
 
 
 

help still needed, more data sparc 10 crash - help needed

Post by Yann Marig » Thu, 17 Jul 2003 21:25:25

Hello,


Perhaps, but i think it could be a bruned hd controler. Do you try to
remove them ?
--
@+ Yann Marigo
Mini_howto : "Apache + mod_ssl + mod_PHP + mod_caucho + resin" :
http://www.yqcomputer.com/

 
 
 

help still needed, more data sparc 10 crash - help needed

Post by awou » Mon, 21 Jul 2003 07:26:51

In article < XXXX@XXXXX.COM >,

:Hello,
:
:> :
:> :Try to remove all internals HD... It could be an hd controler failure
:> :that shortcut the main power supply. I've experienced this some
:> months:ago in my SS20 with a 4,5 Gb Seagate drive.
:> :
:> :Hope this will help :)
:> :--
:> :@+ Yann Marigo
:> :Le mirroir officiel de obsolyte.com : http://www.yqcomputer.com/
:>
:>
:> for the following reasons, i do not believe it is the power supply:
:>
:> i reported the crash a few days ago. i now have the maintenance
:> manual, and it confirms that the power supply is fine: both test
:> criteria are satisfied: the led on front of the case lights up, and
:> the keyboard emits its desired aqueak.
:>
:> however, there is no output either to the monitor or to serial port A
:> when i power on while holding down stop-d. the heyboard LEDs go on and
:> off twice, and then i am left with the cap locks led on permanently,
:> and no other signs of life.
:>
:> this leads me to think that the boot PROM is fried. would a fried boot
:> prom cause a crash in mid-operation? a fried boot PROM would fail in a
:> manner similar to what i have described.
:
:Perhaps, but i think it could be a bruned hd controler. Do you try to
:remove them ?
:--
:@+ Yann Marigo
:Mini_howto : "Apache + mod_ssl + mod_PHP + mod_caucho + resin" :
: http://www.yqcomputer.com/

i picked up a functioning ss10 for $20. it lacked a hard drive.

i moved the old machine's hard drive to the new machine and it booted
just fine. i put the drive back in the old machine and switched, one
at a time, the mbus/cpu and the frame buffer. no change. i can't
work it the other way (putting things into the new machine) because
the the new machine has the 2.12 prom, the old one has a hypersparc
and the 2.25R prom.

tonight i will perform a complete transplant, including the 2.25R prom
to the new machine and give up on the old one. the odds seem to favor
a mainboard defect.
--
a wise person once said "what good is a smart bomb if you have a dumb
president?" - aaron mcgruder

to email me, delete blackhole. from my return address