Could be any/all those things. Just came across this, and hoping that's the issue:
http://en.community.dell.com/support-forums/servers/f/956/t/18068628.aspx Regards, - Robert On Thu, Aug 16, 2012 at 9:50 PM, Wilson, Eric <[email protected]> wrote: > Could it be that the RAM is not interleaved correctly? > > Could it be that the DIMMs are below Dell specifications, [e.g. > 4x256MB DIMMs support by 2x512MB are not] > > > Could it be a failed North Bridge (MCH) controller or controller > channel (3 logical channels)? > > http://www.dell.com/downloads/global/power/ps3q05-20050176-Patel-OE.pdf > > > > Cheers; > > E! > > > On Thu, Aug 16, 2012 at 8:32 PM, Robert Citek <[email protected]> wrote: >> Hello all, >> >> I'm trying to help a friend remotely get Ubuntu 12.04 working on his >> Dell machine. The machine has four 1024MB sticks in it for a total of >> 4 GB of RAM. Unfortunately, his machine is only making 256 MB >> available. This is true not only when running a linux kernel >> (installed and from a LiveCD), but also when running MemTest. >> >> Does anyone have any thoughts on how to have the machine make all the >> RAM available or know why it cannot? >> >> Some details pulled from within Ubuntu 12.04: >> >> ### info from dmidecode showing it's a Dell PowerEdge 2850 >> Handle 0x0100, DMI type 1, 25 bytes >> System Information >> Manufacturer: Dell Computer Corporation >> Product Name: PowerEdge 2850 >> >> ### amount of RAM available to the kernel showing only 256 MB >> root@ubuntu:~# free -m >> total used free shared buffers cached >> Mem: 238 212 26 0 6 47 >> -/+ buffers/cache: 158 80 >> Swap: 511 225 286 >> >> >> ### physical RAM in the banks, showing 4 GB >> root@ubuntu:~# dmidecode | grep -i -e size -e bank | grep -B1 -e Bank >> Size: 1024 MB >> Bank Locator: Not Specified >> Size: 1024 MB >> Bank Locator: Not Specified >> Size: 1024 MB >> Bank Locator: Not Specified >> Size: 1024 MB >> Bank Locator: Not Specified >> Size: No Module Installed >> Bank Locator: Not Specified >> Size: No Module Installed >> Bank Locator: Not Specified >> >> Regards, >> - Robert >> >> -- >> Central West End Linux Users Group (via Google Groups) >> Main page: http://www.cwelug.org >> To post: [email protected] >> To subscribe: [email protected] >> To unsubscribe: [email protected] >> More options: http://groups.google.com/group/cwelug -- Central West End Linux Users Group (via Google Groups) Main page: http://www.cwelug.org To post: [email protected] To subscribe: [email protected] To unsubscribe: [email protected] More options: http://groups.google.com/group/cwelug
