*NOTE* These specs are for the Dell Optiplex 755 SFF in general. The system in this ad is configured according to the features listed in the "Description" of the ad. System Upgrades are available.
- Processors
Processor type: Intel Pentium 4, Pentium D, Celeron, or Core processor
Internal cache: At least 512 KB pipelined-burst, eight-way set associative, write-back SRAM
FSB: 800 MHz
- Drives
755 Desktop computer supports: (1) SATA (serial ATA) hard drive; (1) optional floppy drive or media card reader; and (1) optional SATA optical drive.
Externally accessible: one bay for a slimline floppy drive; one bay for a slimline optical drive
Internally accessible: one bay for a 1-inch-high hard drive
- Memory
Type: 533, 667, or 800 MHz DDR2 SDRAM (NOTE: 2-GB 800-MHz memory modules are not supported.)
Memory connectors: 4
Memory modules supported: 256 MB, 512 MB, 1 GB, or 2 GB non-ECC
Minimum Memory: dual-channel: 512 MB; single-channel: 256 MB
Maximum Memory: At 533 or 667 MHz: 8 GB; At 800 MHz: 4 GB
BIOS address: F0000h
- Computer Information
Chipset: Intel Q965 Express
Data bus width: 64 bits
Address bus width: 32 bits
DMA channels: eight
Interrupt levels: 24
BIOS chip (NVRAM): 8 Mb
NIC: integrated network interface with ASF 1.03 and 2.0 support as defined by DMTF. Capable of 10/100/1000 communication
- Video
Type: Intel Graphics Media Accelerator 3000 or PCI Express x16 graphics card
- Audio
Type: ADI 1983 High Definition Audio
Stero conversion: 20-bit analog-to-digital; 20-bit digital-to-analog
- Controllers
Drives: two SATA controllers supporting one device each
- Expansion Bus
Bus type: PCI 2.3; PCI Express 1.0A; SATA 1.0A and 2.0; USB 2.0
Bus speed: PCI: 133 MB/s; PCI Express x16: 8 GB/s bidirectional speed; SATA: 1.5 Gbps and 3.0 Gbps; USB: 480 Mbps
Cards: (low-profile cards supported)
PCI:
connector: one
connector size: 120 pins
connector data width (maximum): 32 bits
PCI Express:
connector: one x16
power: 25 W (maximum)
connector size:164 pins
connector data width (maximum): 16 PCI Express lanes
- Connectors
External connectors:
Serial: 9-pin connector; 16550C-compatible
Parallel: 25-hole connector (bidirectional)
Video: 15-hole VGA connector
Network adapter: RJ45 connector
USB: two front-panel and six back-panel USB 2.0 compliant connectors
Audio: two connectors for line-in/ microphone and line-out; two front-panel connectors for headphones and microphone
System board connectors:
Primary IDE drive: 40-pin connector internal
USB: 10-pin header for optional Media Card Reader (3.5-inch bay device)
SATA: two 7-pin connectors
Floppy drive: 34-pin connector
Serial: 12-pin connector for optional second serial port card
Fan: 5-pin connector
PCI 2.2: 120-pin connector
Front panel: 40-pin connector
- Key Combinations
Ctrl Alt Del: in Microsoft Windows XP, brings up the Windows Security window; in MS-DOS mode, restarts (reboots) the computer
F2 or Ctrl Alt Enter: starts embedded system setup (during system start-up only)
Ctrl Alt b: automatically starts the computer from the network environment specified by the remote boot environment (PXE) rather than from one of the devices in the system setup Boot Sequence option (during start-up only)
F12 or Ctrl Alt F8: displays a boot device menu that allows the user to enter a device for a single boot (during system start-up only) as well as options to run hard-drive and system diagnostics
- Control and Lights
Power control: Push button
Power light: Green light: Blinking green indicates a sleep mode; solid green indicates the power-on state. Amber light: Blinking amber indicates a problem with an installed device; solid amber indicates an internal power problem (see Power Problems).
Power supply status light: Green light: Solid green indicates the power adapter is connected to an AC outlet and the computer. Amber light: Solid amber indicates the power adapter is connected to an AC outlet but not the computer.
Hard-drive access light: green
Link integrity light (on integrated network adapter): green light for 10-Mb operation; orange light for 100-Mb operation; yellow light for a 1000-Mb (1-Gb) operation
Activity light (on integrated network adapter): yellow blinking light
Diagnostic lights: four lights on the back panel. (See Diagnostic Lights)
Standby power light: AUX_PWR on the system board
- Power
DC external power supply:Power consumption can be zero when the computer is unplugged.
Wattage: 220 W/p>
Heat dissipation: 751 BTU/hr (NOTE: Heat dissipation is calculated based upon the power supply rating.)
Voltage: auto-sensing power supplies: 90 to 135 V at 50/60 Hz; 180 to 265 V at 50/60 Hz
Backup battery: 3-V CR2032 lithium coin cell
- Physical
Height 12.35 inches
Width 3.65 inches
Depth 13.40 inches
Weight 16.4 lb
- Environmental
Temperature range: Operating 50 to 95F; Storage: 40 to 149F
Relative humidity: 20% to 80% (noncondensing)
Maximum vibration: Operating - 0.25 G at 3 to 200 Hz at 0.5 octave/min; Storage - 0.5 G at 3 to 200 Hz at 1 octave/min
Maximum shock: Operating - Bottom half-sine pulse with a change in velocity of 20 inches/sec; Storage - 27-G faired square wave with a velocity change of 200 inches/sec
Altitude: Operating: 50 to 10,000 ft; Storage: 50 to 35,000 ft
