On 08/25/2013 11:41 AM, Steve Brooks wrote: > > Thanks for the reply, I have included the "lspci" output from the new > board running "el6". I am sure that the kernel is not PAE but can not > check as I am at home and the test machine is turned off at work. I did > however run a yum update on the machine so I am wondering if that would > notice the memory was sufficient to benefit from a PAE kernel? I will pop > into work later to day and post the running kernel. > > > Steve > > > 00:00.0 Host bridge: Intel Corporation Xeon E5/Core i7 DMI2 (rev 07) > 00:01.0 PCI bridge: Intel Corporation Xeon E5/Core i7 IIO PCI Express Root > Port 1a (rev 07) > 00:02.0 PCI bridge: Intel Corporation Xeon E5/Core i7 IIO PCI Express Root > Port 2a (rev 07) > 00:03.0 PCI bridge: Intel Corporation Xeon E5/Core i7 IIO PCI Express Root > Port 3a in PCI Express Mode (rev 07) > 00:05.0 System peripheral: Intel Corporation Xeon E5/Core i7 Address Map, > VTd_Misc, System Management (rev 07) > 00:05.2 System peripheral: Intel Corporation Xeon E5/Core i7 Control > Status and Global Errors (rev 07) > 00:05.4 PIC: Intel Corporation Xeon E5/Core i7 I/O APIC (rev 07) > 00:11.0 PCI bridge: Intel Corporation C600/X79 series chipset PCI Express > Virtual Root Port (rev 05) <snip> It is better that you provide output of "lspci -nn" so DeviceID's are also listed, to be searched for kernel modules, device drivers. Like: 00:14.5 USB controller [0c03]: Advanced Micro Devices [AMD] nee ATI SB7x0/SB8x0/SB9x0 USB OHCI2 Controller [1002:4399] Device ID in this case is: 1002:4399 So you can go to http://elrepo.org/tiki/DeviceIDs and check if there are kmod packages to provide the driver for that device. Also worth noting is that ElRepo also provides 3.0.x kernels for CentOS 5.x that should be kABI/ABI compatible. Latest is 3.0.93. -- Ljubomir Ljubojevic (Love is in the Air) PL Computers Serbia, Europe StarOS, Mikrotik and CentOS/RHEL/Linux consultant