Dell OptiPlex 790 User Manual

System Setup 19
System Setup
This computer offers you the following options:
•
Access System Setup by pressing <F2>
• Bring up a one-time boot menu by pressing <F12>
Press <F2> to enter System Setup and make changes to the user-definable
settings. If you have trouble entering System Setup using this key, press <F2>
when the keyboard LEDs first flash.
Boot Menu
This feature gives users a quick and convenient mechanism to bypass the
System Setup-defined boot device order and boot directly to a specific device
(for example: floppy, CD-ROM, or hard drive).
Keystroke Function
<Ctrl><Alt><F8> one-time boot and diagnostics utility menu
<F12> one-time boot and diagnostics utility menu
Boot Menu Enhancements
The boot menu enhancements are as follows:
• Easier access — Although the <Ctrl><Alt><F8> keystroke still exists and can
be used to call up the menu, simply press <F12> during system boot to
access the menu.
• User prompting — Not only is the menu easy to access, when you are
prompted to use the keystroke on the BIOS splash screen (see image
below). The keystroke is not "hidden".
• Diagnostics options — The boot menu includes two diagnostic options, IDE
Drive Diagnostics (90/90 Hard Drive Diagnostics) and Boot to the Utility
Partition. The benefit here is that you do not have to remember the
<Ctrl><Alt><D> and <Ctrl><Alt><F10> keystrokes (although they still work).
NOTE: The BIOS features an option to disable either or both of the keystroke
prompts under the System Security / Post Hotkeys submenu.
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Dell OptiPlex 790 Specifications

General

Tcase	72.6 °C
Bus type	DMI
Stepping	D2
Processor cache	8 MB
Processor cores	4
Processor model	i7-2600
System bus rate	5 GT/s
Processor family	Intel® Core™ i7
Processor series	Intel Core i7-2600 Desktop Series
Processor socket	LGA 1155 (Socket H2)
Processor threads	8
Processor codename	Sandy Bridge
Processor frequency	3.4 GHz
Processor cache type	Smart Cache
Processor lithography	32 nm
Processor manufacturer	Intel
Processor front side bus	- MHz
PCI Express slots version	2.0
Processor boost frequency	3.8 GHz
Processor operating modes	64-bit
ECC supported by processor	No
Thermal Design Power (TDP)	95 W
Number of processors installed	1
CPU multiplier (bus/core ratio)	34
Maximum number of PCI Express lanes	16
Memory types supported by processor	DDR3-SDRAM
Memory clock speeds supported by processor	1066, 1333 MHz
Memory bandwidth supported by processor (max)	21 GB/s
Maximum internal memory supported by processor	32 GB
Product type	PC
Motherboard chipset	Intel® Q965 Express
Memory slots	4x DIMM
Internal memory	4 GB
Memory channels	Dual-channel
Memory clock speed	1333 MHz
Maximum internal memory	16 GB
Memory layout (slots x size)	2 x 2 GB
HDD speed	7200 RPM
HDD interface	SATA III
Optical drive type	DVD-ROM
Total storage capacity	500 GB
Networking features	Gigabit Ethernet
On-board graphics card	Yes
On-board graphics card ID	0x102
Discrete graphics card model	Not available
On-board graphics card model	Intel® HD Graphics 2000
On-board graphics card family	Intel® HD Graphics
On-board graphics card base frequency	850 MHz
On-board graphics card dynamic frequency (max)	1350 MHz
Number of displays supported (on-board graphics)	2
Display included	-
Operating system installed	Windows 7 Professional
USB 2.0 ports quantity	10
Firewire (IEEE 1394) ports	0
Cabling technology	10/100/1000Base-T(X)
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Chassis type	SFF
Product color	Black
Certification	CECP, TCO 05, WEEE
Sustainability certificates	RoHS, EPEAT Gold, ENERGY STAR
Power supply	240 W
Processor code	SR00B
Processor ARK ID	52213
Processor package size	37.5 x 37.5 mm
Supported instruction sets	AVX
Intel Identity Protection Technology version	1.00

Weight and Dimensions

Depth	312 mm
Width	92.6 mm
Height	290 mm
Weight	5700 g