Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!cs.utexas.edu!tut.cis.ohio-state.edu!purdue!mentor.cc.purdue.edu!mace.cc.purdue.edu!du4
From: du4@mace.cc.purdue.edu (Ted Goldstein)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: PARITY CHECK 2 errors
Message-ID: <5310@mace.cc.purdue.edu>
Date: 10 Aug 90 20:46:05 GMT
Distribution: usa
Organization: Purdue University
Lines: 25

(Got no answers first time, so posting again with wider distribution)

I have an original IBM PC that gets PARITY CHECK 2 errors when running
certain applications,  but is not reproducible by any exact  sequence.
Now for the frustrating part:  the PC passes startup test okay,  all 3
of my memory test programs can run all day without error,  and all the
memory chips on the expansion board pass ok on my chip tester. Now for
the question:  I know  PARITY CHECK 2  refers to an error on the  'I/O
channel', but does this necesarily refer to a memory board or could it
be from another card such as the hard disk controller or  video  card?
If it _is_ the memory card,  I guess it must be due to something other
than a faulty memory chip.  I do not have another memory board to swap 
in right now, but I know that would be the thing to try.

Any ideas or suggestions on how to track down this problem, or on what
exactly can cause PARITY CHECK errors? 

ADVthanksANCE


-- 
Ted Goldstein                            E-mail: du4@mace.cc.purdue.edu
Network and Systems Admninistrator       Phone : (317) 494-9070
Purdue University School of Technology   Office: Knoy Hall, Rm G009
Philosophy's alright, when you have a house to think about it in-Arlo Guthrie