12 Mar
2010
12 Mar
'10
8:17 p.m.
At 6:59 PM +0000 3/11/10, Tony Duell wrote:
Face it Tony, we're not all wizards like you. :-( Though given the
I am not a wizard. In fact I doubt if I am even a hacker.
I've always take n the attitude, though (as I mentioned in another
thread) that id I need to do something (as here, fix a PSU) and I odn't
know how to do it, then I am going to teach myself how to do it.
Of course
the other thing I worry about is power supplies. In fact that's
what I've been loosing VMS boxes to. :-(
Normally DEC PSUs are well behaved in that when they fail they don't do
any damage to the rest of the machine. Given that, and given that there
are unliklely to be any custom ICs in the PSU, what is the problem? necessary parts, I could fix the one in my VAXstation
4000/vlc
(fans). The PSU in the XP1000 and the way that machine is acting has
Another difference between you and me. I _repair_ fans. No, I am not
kidding.
me more than a little concerned, I'm afraid it
might have taken
something with it. I discovered the problem on Monday, and haven't
had time to take a serious look at it. Though as long as the CPU
board, and the SCSI boards in it are fine, I should be okay. My
other XP1000 is only a 500Mhz, so I'd prefer not to loose the 667Mhz
CPU.
What's it doing? Could it be excessive ripple or noise on a power line?
-tony