HP Kayak XA Technical Reference Manual page 19

Desktop Parameter
Current at +12 V
Current at -12 V
1.
Note that even though the desktop power supply is autoselect, it is not a full range power supply.
It works in 2 input voltage range and not in one big 90 V to 240 V range.
2.
On minitower models, always check the voltage switch position at first power-on.
NOTE
4.4 A
0.5 A
An attempt to draw too much current (such as a short circuit across edge-
connector pins, or an accessory board that is not suitable for these PC
Workstations), will cause the overload protection in the power supply to be
triggered, and the PC Workstation could fail to boot.
Both power supplied on the desktop and minitower models are new
compare to the ones used on previous platforms (Vectra VL 6/xxx and XA 6/
xxx). The difference is at the V standby level, which has been extended to
deliver 300mA instead of 100mA. This extra current is required by the
100TX hardware layer so it can perform a remote power-on at reception of a
magic frame. Using an older power supply for a repair will prevent a remote
power-on at reception of a magic frame.
When the PC Workstation is turned off with the power button on the front
panel, the power consumption falls below 5 Watts, but is not zero. The special
on/off method used by this PC Workstation extends the lifetime of the power
supply. To reach zero power consumption in "off" mode, either unplug the PC
Workstation from the power outlet or use a power block with a switch. You
should be aware that the PC Workstation will lose its time settings within a
few days if you unplug the PC, or switch off the PC Workstation at the power
block.
Total Rating
1 System Overview
Specifications and Characteristic Data
Typical per
PCI
Notes
Accessory
Slot
0.2 A
—
0.2 A
—
Typical per
ISA
Accessory
Slot
0.2 A
0.5 A
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