I think I fried a PDP-11

From: Zane H. Healy <healyzh_at_ix.netcom.com>
Date: Fri Oct 2 01:40:02 1998

OK, I had the PDP-11/23+ board in place, and the system loaded up. I was
testing out the memory boards I've got by swapping them in. It didn't seem
to like a pair of clearpoint memory boards I've got, and then I put in the
M8637-EC board, and NOTHING works. It won't even come up with the info on
the /23+ ROM. I've a very bad feeling about having put ECC RAM in it.

I went so far as to pull out all the boards, nothing. I swapped the /23+
with a /73 and still nothing! What on earth did I do? The diagnostic LEDs
on the /23+ are D1, D2, and D4 unfortunatly the manual I've got on the
board doesn't seem to explain what the LEDs mean.

It's as if I managed to fry the backplane, but that really doesn't make sense.

                                Zane
| Zane H. Healy | UNIX Systems Adminstrator |
| healyzh_at_ix.netcom.com (primary) | Linux Enthusiast |
| healyzh_at_holonet.net (alternate) | Classic Computer Collector |
+----------------------------------+----------------------------+
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| and Zane's Computer Museum. |
| http://www.dragonfire.net/~healyzh/ |
Received on Fri Oct 02 1998 - 01:40:02 BST

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