Dell OPTIPLEX 740 - Before You Begin Procedures; Recommended Tools; Turning Off Your Computer; Before Working Inside Your Computer

19
MT DT SFF
External Dimensions inches/
centimeters (Without Bezel –
W x H x D)
148.2mm(6in)/42mm (2in)/ 190.5 (max) 148.2mm(6in)/42mm (2in)/ 190.5 (max)
128.0 mm (5.04)/ 12.7mm (0.5 in)/
126.1mm (4.97in)
Weight (max) pounds/
kilograms
800g 800g 170g
Interface type and speed SATA 16x SATA 16x SATA 8x
Disc Capacity Standard Standard Standard
Internal buffer size supplier dependent supplier dependent supplier dependent
Access Times (typical) supplier dependent supplier dependent supplier dependent
Maximum Data Transfer
Rates
Writes 16x DVD/48x CD 16x DVD/48x CD 8x DVD/ 24x CD
Reads 16x DVD/48x CD 16x DVD/48x CD 8x DVD/ 24x CD
Power Source
DC Power Requirements 12V 12V 5V
DC Current 1200mA (12V)/ 900mA (5V) 1200mA (12V)/ 900mA (5V) 1000mA
Environmental Operating
Conditions (Non-
Condensing):
Operating Temperature
Range
5C to 50C 5C to 50C 5C to 50C
Relative Humidity
Range
20% to 80% RH 20% to 80% RH 20% to 80% RH
Maximum Wet Bulb
Temperature
29C 29C 29C
Altitude Range -200 to 3048m -200 to 3048m -200 to 3048m
Environmental Non-
Operating Conditions (Non-
Condensing):
Operating Temperature
Range
-45C to 65C -45C to 65C -45C to 65C
Relative Humidity
Range
5% to 95% RH 5% to 95% RH 5% to 95% RH
Maximum Wet Bulb
Temperature
38C 38C 38C
Altitude Range -200 to 10600m -200 to 10600m -200 to 10600m
OPTICAL DRIVES
DVD +/- RW
1
1
Discs burned with this drive may not be compatible with some existing drives and players; using DVD+R media provides maximum compatibility.
MT DT SFF
External Dimensions inches/
centimeters (Without Bezel –
W x H x D)
148.2mm(6in)/42mm (2in)/ 190.5 (max) 148.2mm(6in)/42mm (2in)/ 190.5 (max)
128.0 mm (5.04)/ 12.7mm (0.5 in)/
126.1mm (4.97in)
Weight (max) pounds/
kilograms
750g 750g 150g
Interface type and speed SATA 48x SATA 48x SATA 24x
Disc Capacity Standard Standard Standard
Internal buffer size supplier dependent supplier dependent supplier dependent
Access Times (typical) supplier dependent supplier dependent supplier dependent
Maximum Data Transfer
Rates
Writes N/A N/A N/A
Reads 16x DVD/48x CD 16x DVD/48x CD 8x DVD/ 24x CD
Power Source
DC Power Requirements 12V 12V 5V
DC Current 1200mA (12V)/ 900mA (5V) 1200mA (12V)/ 900mA (5V) 800mA
Environmental Operating
Conditions (Non-
Condensing):
DVD-ROM