[rescue] Sun Blade 150

Halford Johnson halfordjohnson at gmail.com
Tue Jul 8 21:32:16 CDT 2008

On Tue, Jul 8, 2008 at 10:12 PM, Lionel Peterson <lionel4287 at verizon.net>
HAve you tried stop-N? That would reset the NVRAM to default values, that

> helped me revive a couple systems...
> To review, you would power up the system, then immediately hold down "stop"
> and "n" on a Sun keyboard, holding them down until the keyboard lights
> cycle
> twice... (the first is power up, the second is the reset) then simply
> release
> the keys and the systme *might* boot up.
> You would do this with a Sun keyboard and VGA monitor attached, I'm sure
> you
> can use serial console to do this, but I don't know the equivalent key
> presses...

I received this machine in unknown condition.

Here is what I've tried:

I've tried using a serial cable 8n1 9600 with hardware flow control and
again with no flow control --- nothing.
I've tried hooking up a VGA monitor and generic USB keyboard, no display.
I've tried multiple single sticks of PC133 ECC RAM in multiple slots, no

Seems pretty dead.  I am not sure what else to try.  I would like to repair
this machine, but I first must determine the problem.

I thought perhaps the motherboard might be dead, but I noted that when I
remove all the RAM, it gives the no RAM system beeping error.  When I insert
RAM, there is no noise, just fans running. (All LEDs turn on successfully)
This leads me to hypothesize that perhaps it is the CPU that is bad?

Any thoughts?

Hal Johnson

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