Specifications
EX800M
8
RELEASED 8/13/13
2679-771339-A05
2.4
Electrical Specifications
2.4.1
5-disk Platform
2.4.1.1
Mean Current Requirements and Power Dissipation
2.4.1.1.1 Power Savings Modes
1
Operating Mode
Mean Current
1, 2
Mean Power
1, 2
12 VDC
5 VDC
Spinup Standard
3
1.900A (max)
1.225A
625 mA (peak)
220 mA
-
Spinup Fast
2.500A (max)
1.600A
625 mA (peak)
220 mA
-
Spinup Green
1.200A (max)
775 mA
625 mA (peak)
220 mA
-
Operational Peak Current
2.000A (peak)
2125 mA (max)
850 mA (peak)
950 mA (max)
-
Sequential Read
575 mA
650 mA
10.2W
Sequential Write
575 mA
550 mA
9.7W
Random Read/Write
750 mA
370 mA
10.9W
Idle
575 mA
340 mA
8.6W
1
When running at 3 Gb/s or as a single ported device, power will be lower than the value listed.
2
All peak and mean values are typical (measured at 25°C) except where specified as maximum.
3
Default spinup mode when not otherwise overridden. Use the WDSpinUp utility to modify the
spinup mode for individual drives. Go to http://support.wdc.com, then click on "Downloads" and
the drive family name to download this utility.
Mode
Mean Current
2
Mean Current
2
Mean Power
2
DIPM Off
12 VDC
5 VDC
Idle_A
575 mA
230 mA
7.5W
Idle_B
475 mA
220 mA
6.8W
Idle_C
400 mA
220 mA
5.9W
Standby_Y
230 mA
220 mA
3.9W
Standby_Z
7 mA
210 mA
1.1W
1
When running at 3 Gb/s or as a single ported device, power will be lower than the value listed.
2
All peak and mean values are typical (measured at 25°C) except where specified as maximum.