Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 (Tek) 9/28/84 based on 9/17/84; site dadla.UUCP Path: utzoo!watmath!clyde!burl!ulysses!mhuxr!mhuxt!houxm!mtuxo!mtunh!mtung!mtunf!ariel!vax135!cornell!uw-beaver!tektronix!teklds!dadla!jamesa From: jamesa@dadla.UUCP (James Akiyama) Newsgroups: net.micro.pc Subject: Re: Parity Check 1 message Message-ID: <315@dadla.UUCP> Date: Sun, 7-Jul-85 04:18:29 EDT Article-I.D.: dadla.315 Posted: Sun Jul 7 04:18:29 1985 Date-Received: Mon, 8-Jul-85 01:06:47 EDT References: <205@geowhiz.UUCP> Distribution: net Organization: Tektronix, Beaverton OR Lines: 51 > Has anyone ever had this message pop up on your screen in about > 20 point high letters. After which you must hard reboot? > > dit dit dit dahhh: > > PARITY CHECK 1 > > What does this mysterious message mean, these crashes seem to happen > randomly, but I'm sure there related to something we can fix. > The grubby details: > > 1) PC with Enhanced color, 8087, 256Kb. > 2) Kinetic Systems Camac interface card (2925) > 3) 50 wire cable to the camac crate controler (also Kinetic) > > We are trying to narrow this thing down, it could possably be the > 2925 card, but it seems unlikely as in operation it works beautifully. > However when I run the diagnostics provided with the pc, and enter > 0 for run diagnostics, the disk just spins and spins, but if I take the > card out, Hunky Dory, any ideas? > > I thougth that the location was bad and we were getting rf interference, > but that does not seem to be it. Could glitches comming through the > cable cause this kind of crash? > > I realize that this probably isnt enough to go on to really solve the > question, but I would even be gratefull for a partial list of things > that cause that parity check message. I can not find it anywhere in my > documentation (I dont have the Tech Ref manual yet). > > Please respond by mail. > uwvax!geowhiz!schuh > > thanks in advance > dave > Working for High Energy Physics, UW Madison. > uwvax!geowhiz!schuh Normally, parity check messages from an IBM PC should be of the form: PARITY CHECK X YYYYY where X is: 1 if the error occurred in system board memory 2 if the error occurred in expansion board memory and YYYYY indicates the bank of failing memory. This is determined by scanning to see if a failing address can be identified. If it can be identified, the address appears as a five-number code. If the failing address couldn't be identified, five question marks should have been displayed.