*NOTE* These specs are for the Dell Optiplex 745 Mini Tower Computer in general. The system in this ad is configured according to the features listed in the "Description" of the ad. System Upgrades are available.
- Microprocessor
Microprocessor types:
Intel Pentium 4
Pentium D
Celeron
Core
Internal cache: At least 512-KB pipelined-burst, eight-way set associative, write-back SRAM
- Memory
Types:
533 MHz DDR2 SDRAM
667 MHz DDR2 SDRAM
800 MHz DDR2 SDRAM
NOTE: 2-GB 800-MHz memory modules are not supported.
Memory connectors: 4
Memory modules supported:
256-MB non-ECC
512-MB non-ECC
1-GB non-ECC
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
Types:
Intel Graphics Media Accelerator 3000
PCI Express x16 graphics card
- Audio
Type: ADI 1983 High Definition Audio
Stereo conversion: 20-bit analog-to-digital; 20-bit digital-to-analog
- Controllers
Drives: four 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
PCI Express x1: 5 Gbps
SATA: 1.5 Gbps and 3.0 Gbps
USB: 480 Mbps
Cards (full-height cards supported):
PCI:
connectors - two
connector size - two 120 pin connectors
connector data width (maximum) - 32 bits
PCI Express:
connectors:
one x1
one x16
power:
10 W (x1)
75 W (x16) maximum
connector size:
36 pins (x1)
120 pins (x16)
connector data width (maximum):
one PCI Express lane (x1)
16 PCI Express lanes (x16)
- Drives
Externally accessible:
one3.5-inch floppy drive or media reader
two 5.25-inch drive bays
Internally accessible: two bays for 1-inch-high hard drives
- Connectors
External connectors:
Serial: 9-pin connector; 16550C-compatible
Parallel: 25-hole connector (bidirectional)
Video: 15-hole VGA connector
Network adapter: RJ45 connector
Optional PS/2 with secondary serial port adapter: two 6-pin mini-DINs
USB: two front-panel and six back panel USB 2.0compliant connectors
Audio: two connectors for line-in/ microphone and line-out; two front-panel connectors for headphones and microphone
System board connectors:
SATA: four 7-pin connectors
internal USB: 10-pin header for optional Media Card Reader (3.5-inch bay device)
Floppy drive: 34-pin connector
Serial: 12-pin connector for optional second PS/2 serial port card
Fan: 5-pin connector
PCI 2.2: two 120-pin connectors
Front panel: 40-pin connector
- Key Combinations
ctrl-alt-del: in Microsoft Windows XP, brings up the Windows Security window; in 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
- Controls and Lights
Power control: push button
Power light:
green light:
Blinking green indicates a sleep mode
solid green indicates a power-on state
amber light:
Blinking amber indicates a problem with an installed device
solid amber indicates an internal power problem.
Hard-drive access light: green
Link light: solid green light indicates network connection
Link integrity light (on integrated network adapter):
green light for 10-Mb operation
orange light for 100-Mb operation
Activity light (on integrated network adapter): yellow blinking light
Diagnostic lights: four lights on the front panel
Standby power light: AUX_PWR on the system board
- Power
DC power supply:
NOTE: Power consumption from an AC power source can be zero when the computer is unplugged.
Wattage: 305 W
Heat dissipation: 1041 BTU/hr (NOTE: Heat dissipation is calculated based upon the power supply rating.)
Voltage: manual selection power supplies 90 to 135 V at 60 Hz; 180 to 265 V at 50 Hz
Backup battery: 3-V CR2032 lithium coin cell
- Physical
Height : 16.3 inches
Width: 7.3 inches
Depth: 17.3 inches
Weight: 27.2 lb
- Environmental
Temperature:
Operating: 50 to 95 degrees F
Storage: -40 to 149 degrees F
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
