Dell 980 manual Bios Defaults

DVD+/-RW with	MT	DT	SFF
Blu-Ray-ROM
Operating	-40C to 65C	-40C to 65C	-40C to 65C
Temperature Range
Relative Humidity	5% to 95% RH	5% to 95% RH	5% to 95% RH
Range
Maximum Wet Bulb	38C	38C	38C
Temperature
Altitude Range	-200 to 10600m	-200 to 10600m	-200 to 10600m

More details for optical drives can be found at:

http://support.dell.com/support/systemsinfo/documentation.aspx?c=us&l=en&s=gen&~cat=7

BIOS Defaults

		BIOS Factory Defaults (All chassis unless noted)
	Drives		Diskette drive:			Enabled
			SATA Operation:			RAID On
			SMART Reporting:			Disabled
			Drives:
			SATA-0:			Enabled
			SATA-1:			Enabled
			SATA-2:			Enabled
			SATA-3	1	:	Enabled
			External SATA:			Enabled
	System
	Configuration		Integrated NIC:			Enabled
			USB Controller:			Enabled
			Parallel Port:			PS/2
			Parallel Port Address:			378h
			Serial Port #1:			Auto
			Miscellaneous Devices:			PS/2
			Front USB:			Enabled
			Rear Dual USB:			Enabled
			Audio:			Enabled
			Optiplex ON Reader:			Disabled
			Rear Quad USB:			Enabled
			PCI Slots			Enabled
			WiFi NIC Slot			Enabled
	Video		Primary Video:			Auto
	Performance		Multi Core Support:			Enabled
			Intel Turbo Boost Technology:			Enabled
			Intel SpeedStep:			Enabled
			C States Control:			Enabled
			Limit CPUID Value			Disabled
	Virtualization
	Support		Virtualization:			Enabled
OptiPlex 980 Technical Guidebook							Page 43