On Fri, Mar 8, 2013 at 11:27 AM, Kwan Lowe kwan.lowe@gmail.com wrote:
On Fri, Mar 8, 2013 at 10:51 AM, Gerry Reno greno@verizon.net wrote:
Nearly every time we've had lockup problems it has come down to bad or
failing memory.
I've even had memory cause problems where it would pass a quick memtest
but ultimately would fail if you left it running
the tests overnight.
Thank you for your reply.
I was leaning towards memory after swapping the power supply did not
Sure sounds like a memory related lock up since you've ruled out the power supply.
solve the problem. There are 4 8GB DDR3 sticks, so I took out two and ran with 16G. It still failed. I then swapped that out for the other 16GB. Still failed. What I haven't tried is to downclock the memory to
Are you able to boot the system with memory in the second pair of slots?
If it's not memory related (test this memory in another system) then it is probably a motherboard failure. I've seen weird symptoms where the system will boot fine, but once the Linux kernel begins to build its cache it triggers a lock up/throws an exception.
In that case the memory controller was probably going so that ancient system got thrown out (was not in production). In that case the system previously had a proprietary Linux 2.2 kernel and a 2.4 or 2.6 kernel would cause it to wig out. Differences in how a 2.2 and 2.4/2.6 kernel allocates memory really brought out the problem in that system!
But to be sure, run a memtest overnight on the original 4x8GB RAM as has been recommended by others.
a slower speed but will try that tonight if the BIOS supports it. _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos