Dell OptiPlex 990 - Chassis Fan Service; Removing the System Fan

DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK —VERSION 1.5
33
HARD DRIVES
1
(CONT.)
3.5” 320GB SATA 7200 RPM HDD
Capacity (bytes) 320,072,933,376
Dimensions inches (W x D x H) 5.87 x 4 x 1
Interface type and Maximum speed
Up to 6Gb/s (SATA 3.0)
Up to 3Gb/s (SATA 2.0)
Internal buer size 16 MB
Average Seek Time 8.5 ms
Rotational Speed 7200 rpm
Logical Blocks 625,142,448
Power Source
Power Consumption (reference only) Idle 5.0W, Active 10.0W(running IOmeter utility)
Spin Up Current (reference only) 5V (1A) ,12V (2A)
Environmental Operating Conditions (Non-Condensing):
Temperature Range 5
0
C to 60
0
C
Relative Humidity Range 20% to 80% 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):
1
For hard drives, GB means 1 billion bytes ; actual capacity varies with preloaded material and operating environment and will be less.