Acer Altos R701 Altos R700 Chassis Subassembly - Page 20

Watt Redundant Power Supply, System Cooling, Flex Bay

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12 1 Chassis Description The SCSI hard drives are hot swappable. When a drive fails, the SCSI backplane detects the failure, reports it, and powers down the failed drive. The drive fault LED becomes a continuous amber light. After the failed drive is removed and a new drive is inserted, there is a short wait before power is applied to the drive and the drive fault LED becomes a random blinking green light. Note: Drives can consume up to 17W of power each. Drives must be specified to run at a maximum ambient temperature of 50° C. Flex Bay The flex bay can be used with either the optional DVD/FDD module, CD-ROM/FDD module, or a seventh hot swappable SCSI HDD. The DVD/CD-ROM/FDD module may only be inserted or removed from the flex bay when system power is turned off. It is NOT hot swappable. For information on installation, see "Installing a DVD drive/FDD or CDROM drive/FDD Module" on page 39. 500 Watt Redundant Power Supply The power supply consists of the power supply bay and one power supply module. A second power supply module can be purchased to provide a redundant, 1+1 system. With either configuration, the power supply provides 500 W of power and is designed to minimize EMI. The power supply operates within the following voltage ranges and is rated as follows: • 100-120 V~ at 50/60 Hertz (Hz); 5.2 A maximum • 200-240 V~ at 50/60 Hz; 2.6 A maximum The power subsystem supports implementation of remote management features including remote enable that permits power to be activated from a variety of sources. System Cooling The chassis includes four 60-mm non-hot-swappable system fans for cooling the processor(s), hard drives, and add-in cards. The system fans are mounted in a fan module located in the middle of the chassis to

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1 Chassis Description
12
The SCSI hard drives are hot swappable. When a drive fails, the SCSI
backplane detects the failure, reports it, and powers down the failed
drive. The drive fault LED becomes a continuous amber light. After the
failed drive is removed and a new drive is inserted, there is a short wait
before power is applied to the drive and the drive fault LED becomes a
random blinking green light.
Note
: Drives can consume up to 17W of power each. Drives must
be specified to run at a maximum ambient temperature of 50
°
C.
Flex Bay
The flex bay can be used with either the optional DVD/FDD module,
CD-ROM/FDD module, or a seventh hot swappable SCSI HDD.
The DVD/CD-ROM/FDD module may only be inserted or removed from
the flex bay when system power is turned off. It is NOT hot swappable.
For information on installation, see “Installing a DVD drive/FDD or CD-
ROM drive/FDD Module” on page 39.
500 Watt Redundant Power Supply
The power supply consists of the power supply bay and one power
supply module. A second power supply module can be purchased to
provide a redundant, 1+1 system. With either configuration, the power
supply provides 500 W of power and is designed to minimize EMI. The
power supply operates within the following voltage ranges and is
rated as follows:
•
100-120 V~ at 50/60 Hertz (Hz); 5.2 A maximum
•
200-240 V~ at 50/60 Hz; 2.6 A maximum
The power subsystem supports implementation of remote
management features including remote enable that permits power to
be activated from a variety of sources.
System Cooling
The chassis includes four 60-mm non-hot-swappable system fans for
cooling the processor(s), hard drives, and add-in cards. The system fans
are mounted in a fan module located in the middle of the chassis to