Ok I did this to get memtest in the boot menu: yum install memtest* memtest-setup I am now going to call the remote hands and have them run the memtest. Would it be too much of a conincidence that this friday I: 1. upgrade the OS from Fedora Core 2 to CentOS 4.2 2. Upgrade the bios on the motherboard Tyan S2881 http://www.tyan.com/support/html/b_s2881.html and the memory fails at the same time ? Also can this problem be something to do with the harddrive DMA ? I tired using hdparm to disable the harddrive DMA, but since its a SATA drive, hdparm reports: "HDIO_GET_MULTCOUNT failed: Inappropriate ioctl for device" lm_sensors shows the cpu temperature to be 46C. S On 12/13/05, Vikas <topgun9 at gmail.com> wrote: > I do have remote hands. When grub loads, it doesnt show the memtest86 option. > > "select mentest86 option in boot menu." > In which boot menu should I look for memtest86. ? > > I am currently logged into the box. It runs fine for a couple of hours > before it gives the kernel error. Can i run the memtest86 check from > the shell ? > > S > > On 12/13/05, Adriano Frare <alfrare at e-alinux.com> wrote: > > Vikas > > > > Do you have remote hand ? If yes, restart centos server and select > > mentest86 option in boot menu. > > > > Vikas wrote: > > > Is there a way to check the memory bank other then swapping in and out > > > the memory modules. I am 90 miles away from the server. So swapping in > > > and out the memory modules is really not an option, > > > > > > S > > > On 12/13/05, Adriano Frare <alfrare at e-alinux.com> wrote: > > > > > >>Check MEMORY BANK (RAM) > > >> > > >>Vikas wrote: > > >> > > >>>This server was running fedora core 2 till 12/2/2005. It had an > > >>>impressive uptime of 180 days or so. On friday I upgraded to CentOS > > >>>4.2. After upgrading to CentOS 4.2 this server has been throwing > > >>>kernel panics every 10 hours or so. > > >>> > > >>>These are some of the error messages I am getting on the console: > > >>>"CPU 0:Machine check exception :4 Bank 0 : f672100000000833 > > >>>TSC 112180365ccf ADDR e2c7f7c0 > > >>>Kernel Panic - Not synching Machine Check" > > >>> > > >>>This is a production server. I would appreciate any help. > > >>> > > >>>S > > >>>_______________________________________________ > > >>>CentOS mailing list > > >>>CentOS at centos.org > > >>>http://lists.centos.org/mailman/listinfo/centos > > >> > > >>_______________________________________________ > > >>CentOS mailing list > > >>CentOS at centos.org > > >>http://lists.centos.org/mailman/listinfo/centos > > >> > > > > > > _______________________________________________ > > > CentOS mailing list > > > CentOS at centos.org > > > http://lists.centos.org/mailman/listinfo/centos > > _______________________________________________ > > CentOS mailing list > > CentOS at centos.org > > http://lists.centos.org/mailman/listinfo/centos > > >