From: Joe Reid (jreid@vnet.net)
Date: Wed Mar 09 2005 - 23:13:26 EST
I wrote last week that I have a SunBlade 1000 that I put into high
diagnostics by setting diag-switch? to true and diag-level to max. Now
that I've set those nvram variables the machine powers on and fails
POST. According to sunsolve this is the procedure to reset the nvram
parameters to their default is:
http://docs.sun.com/source/805-4496-10/chap10.htm
After power on, wait for the led to blink and the speaker to beep. Can
anyone confirm this procedure works? My led only blinks once and the
speaker never beeps.
Some questions related to the procedure and the boot process of a
working SunBlade 1000:
Should the led blink more than once during power up normally? Does the
speaker beep? Does this procedure bring up the mentioned menu on the
sunblade? Does it show up on the frame buffer and/or the serial console?
Either way that does not solve my problem since it only forces
diag-switch? to true, POST still runs and fails.
I get this menu after the system fails POST:
-----
0:0>ERROR: No good CPUs left! Calling debug menu.
0:0> 0 Peek/Poke interface
0:0> 1 Dump CPU Regs
0:0> 2 Dump BBC Regs
0:0> 3 Dump Mem Controller Regs
0:0> 4 Dump Valid DMMU entries
0:0> 5 Dump IMMU entries
0:0> 6 Dump Struct Info
0:0> 7 Dump Mailbox
0:0> 8 Dump IO-Bridge regs unit 0
0:0> 9 Dump IO-Bridge regs unit 1
0:0> a Allow other CPUs to print
0:0> b Do soft reset
0:0> ? Help
0:0>
0:0>Selection:
-----
From here how can I set diag-level back to min, and maybe even set
diag-switch? to false. I think my problem is power supply related and
not system (m/b, cpu or mem) related. I have a new power supply coming
but it is not here yet. Until I get past this debug menu my machine is
dead in the water -- and it worked before I set diag-switch? and diag-level.
I ended up in this state because I have 3 cpus, all work singly but none
work in any paired combo with different failures for all combos. The
system is a Tatung clone and the power supply is MUCH smaller than the
OEM Sun power supplies for either the 280R or the SB1000. With 2 900MHz
cpus and 8 512mb DIMMS I would guess power, especially 3.3v and 5V,
becomes critical.
The Tatung clone is a Sun motherboard wand CPU's in a different case and
power supply. Would someone look inside their 1000 and confirm which
wires are used on the large black power connector (J3601) from the power
supply, does it use all 14 pins or less, are they all double wired?
Also, does anyone know if the IDPROM could be moved to a fully working
machine, have those NVRAM variables reset and then reinstall the chip to
get back to the OK prompt?
-- Joe Reid jreid@vnet.net http://www.singlewhitemale.net ?c=a=rb=sc=fd=te=wf=zg=porh=n? _______________________________________________ sunmanagers mailing list sunmanagers@sunmanagers.org http://www.sunmanagers.org/mailman/listinfo/sunmanagers
This archive was generated by hypermail 2.1.7 : Wed Apr 09 2008 - 23:30:19 EDT