HARD DRIVE OPTIONS
Supported Types Serial ATA or Serial ATA 3.0
Available Drives 7200RPM SATA 3.0Gb/s: 80GB, 160GB, 250GB
4
7200RPM
10K RPM SATA 1.5Gb/s: 80GB
SMART Technology SMART III
Burst Transfer Rate 300 Mbit/s
Partition Support MS Windows XP Professional SP2: Support both FAT16 and FAT32. FAT32 will be the default configuration
MS Windows XP Home SP2: Support both FAT16 a
SYSTEM BOARD CONNECTORS
Serial ATA Four 7-pin connectors Two 7-pin connectors Two 7-pin connectors One 7-pin connector
Floppy drive 34-pin connector
Serial 12-pin connector, optional second serial port card (not available on USFF)
Fan 5-pin connector
PCI 2.3 120-pin connector
Front panel 40-pin connector
STANDARD I/O PORTS
* Front ports may be disabled
Display Port 1 VGA Out (15-hole) DVI-I Out
USB 2.0 Two front and six rear Two front and five rear
Serial Port One, rear. One rear
Optional Adapters One, rear. 12-pin proprietary connector for PS/2 adapter or a second serial port. Not available on USFF
Internal USB 10-pin connector for optional media bay device
Parallel Port One, rear (25-hole, bi-directional)
Ethernet Network One, rear (RJ45)
Stereo line-in One minijack, rear
Speakers, line-out One minijack, rear
Microphone-in One minijack, front
Headphone One minijack, front
COMPUTER INFORMATION
System Clock Utilizes the CK-505 clock synthesizer chip, which incorporates Intel specifications for clock generation
Data bus width 64 bits
Address bus width 36 bits
DMA channels Eight
Interrupt levels 24
EXPANSION BUS INFORMATION
PCI 2.3 PCI: 33 MHz
PCI Express 1.0a PCI Express x1: 5 Gbps
PCI Express x16: 80 Gbps
SATA 1.0a and 2.0 SATA: 1.5 and 3.0 Gbps
USB 2.0 USB: 480 Mbps
PCI-E x1 Available slots One full height Not available Not available Not available
Connector Size 36 pins
Data Bus One bi-directional differential lane
pair (2.5Gbs per lane) 5Gbs total
Voltage 3.3V
Power 10 W (x1)
PCI Available slots Two Full-Height Two Low-Profile on board One Low-Profile Not available
Riser options: *
- Dual PCI Riser
- Combo x16/PCI Riser
Connector size 120 pins
Data Bus 32Bit/33MHz
Voltage 3.3 Volt External Operation (some pins 5 Volt Tolerant); 1.8V internal regulation
PCI Express x16 One Full-Height One Low-Profile One Low-Profile Not available
Available slots Riser option: *
Combo x16/PCI Riser
Co
nnector Size 164 pins
Data Bus 16 bi-directional differential lane pair (2.5Gbs per lane) 80Gbs total
Voltage 12V
Power 75 W (x16) maximum
* One low-profile slot remains available on board when riser installed
Dell™ OptiPlex™ 745
Tech Specs
MINITOWER
DESKTOP
SMALL FORM
FACTOR
ULTRA SMALL
FORM FACTOR
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