Dell OptiPlex 990 - System Board Service; Removing the System Board

DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK —VERSION 1.5
39
1
For hard drives, GB means 1 billion bytes ; actual capacity varies with preloaded material and operating environment and will be less.
2.5” 250GB SATA 7200 RPM HDD
Capacity (bytes)
250,059,350,016
Dimensions inches (W x D x H)
Approximately (3.93 x 2.75 x 0.374 inches)
Interface type and Maximum speed
Up to 3Gb/s
Internal buer size
16 MB
Average Seek Time
12 ms (Read)
Rotational Speed
7200 rpm
Logical Blocks
488,397,168
Power Source
Power Consumption (reference only) Idle 0.7W, Active 3.25W
Spin Up Current (reference only) 5V (1A)
Environmental Operating Conditions (Non-Condensing):
Temperature Range
5
0
C to 60
0
C
Relative Humidity Range
10% to 90% non-condensing
Maximum Wet Bulb Temperature
29
0
C
Altitude Range
-50 ft to 10000 ft
Temperature Range
-40
0
C to 65
0
C
Relative Humidity Range
10% to 90% non-condensing
Maximum Wet Bulb Temperature
38
0
C
Altitude Range
-50 ft to 35000 ft
Environmental Non-Operating Conditions (Non-Condensing):
HARD DRIVES
1
(CONT.)