Hi I have a dell 770 bios sees 8g I beleive Ive *vi /etc/yum.repos.d/CentOS-Base.repo* *[centosplus]name=CentOS-$releasever - Plusmirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=centosplus <http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=centosplus>#baseurl=http://mirror.centos.org/centos/$releasever/centosplus/$basearch/ <http://mirror.centos.org/centos/$releasever/centosplus/$basearch/>gpgcheck=1enabled=1includepkgs=kernel* jfsutils reiserfs-utils* if I do dime910 /home/robert :( # yum search kernel-pae Loaded plugins: fastestmirror, refresh-packagekit, security Loading mirror speeds from cached hostfile * base: centos.clearvoiceone.com * centosplus: mirror.net.cen.ct.gov * extras: mirror.atlanticmetro.net * updates: centos.mirror.nac.net Warning: No matches found for: kernel-pae No Matches found dime910 /home/robert # uname 2.6.32-431.23.3.el6.centos.plus.x86_64 #1 SMP Wed Jul 30 00:12:13 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ime910 /home/robert :( # vmstat -s 3471928 total memory 2173624 used memory 1317920 active memory 601296 inactive memory 1298304 free memory 170596 buffer memory 1187296 swap cache 4094968 total swap 0 used swap 4094968 free swap ~~~~~~~~~~~~~~~~~~~~ below shows the sticks dime910 /home/robert :( # dmidecode -t 17 # dmidecode 2.12 SMBIOS 2.3 present. Handle 0x1100, DMI type 17, 27 bytes Memory Device Array Handle: 0x1000 Error Information Handle: Not Provided Total Width: 64 bits Data Width: 64 bits Size: 2048 MB Form Factor: DIMM Set: None Locator: DIMM_1 Bank Locator: Not Specified Type: DDR Type Detail: Synchronous Speed: 667 MHz Manufacturer: 7F7F7F7F7F510000 Serial Number: 0516FC14 Asset Tag: Not Specified Part Number: 64T256020EU2.5C2 Handle 0x1101, DMI type 17, 27 bytes Memory Device Array Handle: 0x1000 Error Information Handle: Not Provided Total Width: 64 bits Data Width: 64 bits Size: 2048 MB Form Factor: DIMM Set: None Locator: DIMM_3 Bank Locator: Not Specified Type: DDR Type Detail: Synchronous Speed: 667 MHz Manufacturer: 7F7F9E0000000000 Serial Number: 00000000 Asset Tag: Not Specified Part Number: CM2X2048-6400C5 Handle 0x1102, DMI type 17, 27 bytes Memory Device Array Handle: 0x1000 Error Information Handle: Not Provided Total Width: 64 bits Data Width: 64 bits Size: 2048 MB Form Factor: DIMM Set: None Locator: DIMM_2 Bank Locator: Not Specified Type: DDR Type Detail: Synchronous Speed: 667 MHz Manufacturer: 7F7F9E0000000000 Serial Number: 00000000 Asset Tag: Not Specified Part Number: CM2X2048-6400C5 Handle 0x1103, DMI type 17, 27 bytes Memory Device Array Handle: 0x1000 Error Information Handle: Not Provided Total Width: 64 bits Data Width: 64 bits Size: 2048 MB Form Factor: DIMM Set: None Locator: DIMM_4 Bank Locator: Not Specified Type: DDR Type Detail: Synchronous Speed: 667 MHz Manufacturer: 7F7F7F7F7F510000 Serial Number: 0516FB12 Asset Tag: Not Specified Part Number: 64T256020EU2.5C2 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ dime910 /home/robert :( # yum repolist all Loaded plugins: fastestmirror, refresh-packagekit, security Loading mirror speeds from cached hostfile * base: centos.clearvoiceone.com * centosplus: mirror.net.cen.ct.gov * extras: mirror.atlanticmetro.net * updates: mirror.net.cen.ct.gov repo id repo name status C6.0-base CentOS-6.0 - Base disabled C6.0-centosplus CentOS-6.0 - CentOSPlus disabled C6.0-contrib CentOS-6.0 - Contrib disabled C6.0-extras CentOS-6.0 - Extras disabled C6.0-updates CentOS-6.0 - Updates disabled C6.1-base CentOS-6.1 - Base disabled C6.1-centosplus CentOS-6.1 - CentOSPlus disabled C6.1-contrib CentOS-6.1 - Contrib disabled C6.1-extras CentOS-6.1 - Extras disabled C6.1-updates CentOS-6.1 - Updates disabled C6.2-base CentOS-6.2 - Base disabled C6.2-centosplus CentOS-6.2 - CentOSPlus disabled C6.2-contrib CentOS-6.2 - Contrib disabled C6.2-extras CentOS-6.2 - Extras disabled C6.2-updates CentOS-6.2 - Updates disabled C6.3-base CentOS-6.3 - Base disabled C6.3-centosplus CentOS-6.3 - CentOSPlus disabled C6.3-contrib CentOS-6.3 - Contrib disabled C6.3-extras CentOS-6.3 - Extras disabled C6.3-updates CentOS-6.3 - Updates disabled C6.4-base CentOS-6.4 - Base disabled C6.4-centosplus CentOS-6.4 - CentOSPlus disabled C6.4-contrib CentOS-6.4 - Contrib disabled C6.4-extras CentOS-6.4 - Extras disabled C6.4-updates CentOS-6.4 - Updates disabled base CentOS-6 - Base enabled: 6,367 c6-media CentOS-6 - Media disabled centosplus CentOS-6 - Plus enabled: 88 cloudera-cdh3 Cloudera's Distribution for Hadoop, Version 3 enabled: 67 cloudera-impala Impala enabled: 8 contrib CentOS-6 - Contrib disabled debug CentOS-6 - Debuginfo disabled elrepo ELRepo.org Community Enterprise Linux Repository - el6 disabled elrepo-extras ELRepo.org Community Enterprise Linux Extras Repository - el6 disabled elrepo-kernel ELRepo.org Community Enterprise Linux Kernel Repository - el6 disabled elrepo-testing ELRepo.org Community Enterprise Linux Testing Repository - el6 disabled extras CentOS-6 - Extras enabled: 15 updates CentOS-6 - Updates enabled: 1,467 repolist: 8,012