I had a Win95 machine that had random blue screens of death. I thought I had
a Windows problem (naturally). Then I loaded Linux on the same box and all
seemed well until I added some memory. I then Linux would not even boot and
I suspected I had a memory problem.

The initial memory test made when you boot your machine is rather worthless.
I found a great shareware program called Green Memory that runs a very
exhaustive memory test.  The full test takes about 1.5 hours on a 1GHz PIII
with 256MB of RAM. I suggest you run the test to rule out a hardware problem
before you invest more time in looking for software bugs. My problem turned
out to be the memory access circuitry on the mobo, as the memory itself
tested OK in another mobo of the same bus speed but not in the problem mobo.

The test program is at http://www.goldmemory.cz/  This is a DOS program, but
you boot from a floppy and it does not care what operating system is on your
hard drive. It doesn't even look at the hard drive and also does not write
anything to the HD.

The only issue is that the version of DOS that comes with Gold Memory,
FreeDOS, does not seem to allow the program to write the log file back to
the floppy disk, at least on my machine. So I set up a boot disk with a
Win98 machine and them copied GM.EXE to that floppy and it ran just fine.

GM found lots of memory errors on the machine that had random failures. I
later ran GM on about 5 other computers we have here and it did not find a
single memory problem. I replaced the mobo in the problem machine and the
old memory tested just fine with GM and that machine is now running Mandrake
8.2

Vic Roberts



-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On
Behalf Of Shane Kennedy
Sent: Tuesday, June 18, 2002 4:59 PM
To: [EMAIL PROTECTED]
Subject: Re: [Newbie]XFree86


I have been having problems like this for nearly 2 years now.  The only
difference is that I am using 3.3.?, with RH6.1 - 7.1.
Also C&T, mouse (actually a touchscreen) freezes, but rarely, does the
screen freeze.  We have a sequence to text, which keeps sequencing.
I am trying to implement XFree-4.2, but as you may have seen I am having
trouble with the T.S.

Re : Solution....I have replaced the T.S., increased memory, rin with
netboot, then an LTSP like setup, then regular LTSP, swapped the basic
10MB hub for a switch, used screened eth cables, put shielding between
various components, and found NO DIFFERENCE.  My next step is to change
the main-board from an Aaeon PCM-4894, to a VIA Eden ITX board.

I'll let you know if it makes any difference.




When all possibilities have been eliminated, the impossible must be
considered ;-)

Regards
Shane
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