HP Vectra VT 6/xxx HP Vectra XU 6/xxx and VT 6/xxx PCs - Technical Reference M - Page 8

Physical Characteristics, Electrical Specification

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PHYSICAL CHARACTERISTICS System Processing Unit Weight: Dimensions: Footprint: Keyboard: 33 lbs (15 kg) 15.95 inches (D) by 8.27 inches (W) by 16.34 inches (H) (40.5 cm by 21 cm by 41.5 cm) 0.91 sq ft (0.085 m2) 18 inches (W) by 7 inches (D) by 1.3 inches (H), when flat, or 18 inches (W) by 7 inches (D) by 2 inches (H), when standing (464mm by 178mm by 33mm when flat, or 464mm by 178mm by 51mm, when standing) ELECTRICAL SPECIFICATION Parameter Input voltage Input current (max) Input power (max) Input frequency Heat dissipation Available power Max current at +12 V Max current at -12 V Max current at +3.3 V Max current at +5V Max current at -5V Max current at +5Vst Total Rating 100-127 Vac 200-240 Vac 6 A 3.15 A 280 W 47 Hz to 63 Hz 280 W 200 W 4 A 0.5 A 16 A 29 A 0.2 A 70 mA Notes Switch selectable Typical per PCI Accessory Slot Less than 5 W when turned off - - Together, these two must not exceed 145 W* 15 W (max) 0.2 A 0.2 A These must not exceed 2.5 A per slot - - - - Typical per ISA Accessory Slot 15 W (max) 0.2 A 0.5 A - 1 A 0.2 A - *Since 29 A at 5 V equates to 145 W, it follows that for every 1 A that is required from the 3.3V supply, it is necessasry to reduce the 29 A limit on the 5 V supply by 0.66 A. For example, 3A at 3.3 V plus a maximum of 27 A at 5 V, or 6 A at 3.3 V plus a maximum of 25 A at 5 V. 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 PCs), will cause the overload protection in the power supply to be triggered, and the PC could fail to boot.

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PHYSICAL CHARACTERISTICS
System Processing Unit
Weight:
33 lbs (15 kg)
Dimensions:
15.95 inches (D) by 8.27 inches (W) by 16.34 inches (H)
(40.5 cm by 21 cm by 41.5 cm)
Footprint:
0.91 sq ft (0.085 m
2
)
Keyboard:
18 inches (W) by 7 inches (D) by 1.3 inches (H), when flat, or
18 inches (W) by 7 inches (D) by 2 inches (H), when standing
(464mm by 178mm by 33mm when flat, or
464mm by 178mm by 51mm, when standing)
ELECTRICAL SPECIFICATION
Parameter
Total Rating
Notes
Typical per PCI
Accessory Slot
Typical per ISA
Accessory Slot
Input voltage
100-127
Vac
200-240
Vac
Switch selectable
Input current (max)
6 A
3.15 A
Input power (max)
280 W
Less than 5 W
when turned off
Input frequency
47 Hz to 63 Hz
Heat dissipation
280 W
Available power
200 W
15 W (max)
15 W (max)
Max current at +12 V
4 A
—
0.2 A
0.2 A
Max current at -12 V
0.5 A
—
0.2 A
0.5 A
Max current at +3.3 V
16 A
Together, these two
must not exceed
145 W*
These must not
exceed 2.5 A
per slot
—
Max current at +5V
29 A
1 A
Max current at -5V
0.2 A
—
—
0.2 A
Max current at +5Vst
70 mA
—
—
—
*Since 29 A at 5 V equates to 145 W, it follows that for every 1 A that is required from the 3.3V
supply, it is necessasry to reduce the 29 A limit on the 5 V supply by 0.66 A. For example, 3A
at 3.3 V plus a maximum of 27 A at 5 V, or 6 A at 3.3 V plus a maximum of 25 A at 5 V.
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 PCs), will cause the overload protection in the power
supply to be triggered, and the PC could fail to boot.