I am unable to run lspci command since i am not able to boot the server with live cd or install Linux. anyhow I get some more information about the SAS Driver after installing windows server 2012, here is the information Device Descprition: DELL PERC 6/i Integrated Devive Instance path: PCI\VEN_1000&DEV_0060&SUBSYS_1F0C1028&REV_04\4&254D1C7F&0&0020 hardware ids : PCI\VEN_1000&DEV_0060&SUBSYS_1F0C1028&REV_04 PCI\VEN_1000&DEV_0060&SUBSYS_1F0C1028 PCI\VEN_1000&DEV_0060&CC_010400 PCI\VEN_1000&DEV_0060&CC_0104 Compatible IDS: PCI\VEN_1000&DEV_0060&REV_04 PCI\VEN_1000&DEV_0060 PCI\VEN_1000&CC_010400 PCI\VEN_1000&CC_0104 PCI\VEN_1000 PCI\CC_010400&DT_0 PCI\CC_010400 PCI\CC_0104&DT_0 PCI\CC_0104 driver version: 6.600.21.8 Matching device ID PCI\VEN_1000&DEV_0060&SUBSYS_1F0C1028 Service: Megasas Configuration ID megasas.inf:PCI\VEN_1000&DEV_0060&SUBSYS_1F0C1028,Install_INT.NT