New Installation
For a new installation, simply reverse the Replacement steps and:
1. Keep the power supply unplugged until it is ready to be tested.
2. Always refer to your motherboard documentation for plug details.
Specifications
Standards & Certifications
• UL; FCC; ATX 12 V 2.0
External Ports
• Input power w/ power switch
Internal Connections
• 4 Molex 4-pin (5 for Model
178549)
• ATX 20+4 pin
• 12 V 4-pin auxiliary power
• FDD (floppy disk drive) 4-pin
• 2 SATA power 15-pin
• PCI-E 6-pin (Models 178525,
178532 & 178549 only)
• Voltage (min./max. load):
- Model 178501: +5 V (0.5 A /
18 A), +12 V1 (1 A / 10 A),
+12 V2 (1 A / 10 A), -12 V (0
A / 0.3 A), +3.3 V (0.3 A / 19
A), +5 VSB (0 A / 2.5 A)
- Models 178518: +5 V (0.5 A
/ 18 A), +12 V1 (0.5 A / 12
A), +12 V2 (0.5 A / 12 A), -12
V (0 A / 0.3 A), +3.3 V (0.3 A
/ 21 A), +5 VSB (0 A / 2.5 A)
- Model 178525: +5 V (0.5 A /
18 A), +12 V1 (1 A / 15 A),
+12 V2 (1 A / 15 A), -12 V (0
A / 0.3 A), +3.3 V (0.3 A / 21
A), +5 VSB (0 A / 2.5 A)
- Model 178532: +5 V (0.5
A / 20 A), +12 V1 (1 A / 17
A), +12 V2 (1 A / 17 A),
-12 V (0 A / 0.3 A), +3.3 V
(0.3 A / 24 A), +5 VSB (0
A / 2.5 A)
- Model 178549: +5 V (0.5
A / 28 A), +12 V1 (1 A / 16
A), +12 V2 (1 A / 17 A),
-12 V (0 A / 0.3 A), +3.3 V
(0.3 A / 30 A), +5 VSB (0
A / 3 A)
Power Input
• Voltage: 104–127 V AC
(nom. 115 V) ; 207–253 V AC
(nom. 230 V)
• Wattage:
- Model 178501: 255 W
- Model 178518: 305 W
- Model 178525: 355 W
- Model 178532: 405 W
- Model 178549: 500 W
• Frequency: 47–63 Hz
• Current (max):
- Models 178501, 178518,
178525, 178532: 115 V 4 A /
230 V 2 A
- Model 178549: 115 V 10 A /
230 V 5 A
• Max. inrush current: 100 A
cold start
Power Regulation
• Line regulation: +/- 1%
• Load regulation: +/- 5%
(-12 V +/- 10%)
• Ripple and noise:
- Models 178501, 178518,
178525, 178532: +3.3 V /
50 mV, +5 V / 50 mV, +12
V1 / 120 mV, +12 V2 / 120
mV, -12 V / 120 mV, +5
VSB / 50 mV
- Model 178549: +3.3 V / 50
mV, +5 V / 50 mV, +12 V1 /
100 mV, +12 V2 / 100 mV,
-12 V / 100 mV, +5 VSB /
50 mV
• Efficiency: 70% (min.) at
full load
Physical
• 120 mm internal fan (80 mm
on Models 178501 & 178518)
• Dimensions: 150 x 140 x 86
mm (6 x 5.5 x 3.5 in.)
• Weight:
- Models 178501, 178518,
178532, 178549:
1.54 kg (54.4 oz.)
- Model 178525: 1 kg
(35.0 oz.)
Environmental
• Operating temp.: 0–40˚C
(0–105˚F)
• Storage temp.: -20–70˚C
(-20–158˚F)
• Storage humidity: 5–95%
non-condensing
Package Contents
• Computer Power Supply
• User manual
