Same problem with DELL PowerEdge R515 with Ubuntu 14.04 LTS Server 64-bit.
Certified here: http://www.ubuntu.com/certification/hardware/201106-8086/
Same problem with DELL PowerEdge R515 with Ubuntu 14.04 LTS Server 64-bit.
Certified here: http:// www.ubuntu. com/certificati on/hardware/ 201106- 8086/