Solved: Installed RAM 16GB, only 4GB in BIOS - Precision T5400 - Page 3 - Dell Community
Amazon.com: Dell Precision T5400 Workstation With Intel Xeon Processor(s), DDR2 Memory, SATA Hard Drive(s), nVidia Video Card, and Windows Operating System : Electronics
Amazon.com: Dell Precision T5400 Workstation With Intel Xeon Processor(s), DDR2 Memory, SATA Hard Drive(s), nVidia Video Card, and Windows Operating System : Electronics