Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!uupsi!njin!spcvxb.spc.edu!terry
From: terry@spcvxb.spc.edu (Terry Kennedy, Operations Mgr.)
Newsgroups: comp.sys.dec
Subject: Re: 11/44 Fault Codes for my Home-Based Box
Message-ID: <1991Mar26.170415.1192@spcvxb.spc.edu>
Date: 26 Mar 91 17:04:15 GMT
References: <1991Mar26.084525.459@nic.csu.net>
Organization: St. Peter's College, US
Lines: 18

In article <1991Mar26.084525.459@nic.csu.net>, mcgee@nic.csu.net writes:
> Last night was the primary application of power (Read: Smoke Test)
> for my PDP 11/44. Everything spun up, the room lights stayed lit,
> and, so far, no one complained about the noise the fans made. 
> However, I have a problem. The diagnostic rom says "?22 CP HUNG"
> and a T/E trace says "CONSOLE -A7".

  Well, you have an old '44. The newer ones emit more useful error messages.
The CP (CPU) errors mean that the console processor (8085) couldn't get a
proper response out of the main CPU. Possibly a missing board, mis-seated
board, or no memory at location 0. Also, a failure to start can be caused
by missing bus grant continuity or a missing 9302 terminator module. I sug-
gest you send direct mail to me and we can set up a time for a phone call
when you're at your 11/44.

	Terry Kennedy		Operations Manager, Academic Computing
	terry@spcvxa.bitnet	St. Peter's College, US
	terry@spcvxa.spc.edu	(201) 915-9381