Specifications
We've got two be quiet! PSUs - one a 'Pro' 430W and the other a regular 470W model. We'll find out what makes a 'Pro' model special shortly. The third PSU is from NorthQ and is a 400W-rated model. Finally we also have a spanking new 400W model from FSP Group.
| NorthQ NQ-4800-400 | be quiet! Dark Power Pro 430W | be quiet! Dark Power 470W | FSP Zen 400W | |
|---|---|---|---|---|
| Rated output power | 400W | 430W | 470W | 400W |
| Power specification | ATX 2.0 | ATX 2.2 | ATX 2.2 | ATX 2.2 |
| Power switch? | Yes + remote | Yes | Yes | Yes, with LED |
| Input voltage (AC) | 230V, 50Hz | 200-240V, 50Hz | 200-240V, 50Hz | 99-265V, 47-63Hz |
| Fan(s) | 140mm | 120mm | 2x 80mm low-noise | None |
| Cable runs | 24-pin EATX with split P4 3 x 4-pin Molex, 1 floppy 3 x 4-pin Molex, 1 floppy 1 x PEG 2 x SATA 2 x SATA |
24-pin EATX with 20-24 pin adapter EPS + P4 3 x 4-pin Molex, 1 floppy 3 x 4-pin Molex 1 x 4-pin Molex 1 x 4-pin Molex 1 x PEG 1 x PEG 3 x SATA 3 x SATA 1 x 4-pin Molex + 1 x 3-pin Fan 1 x 4-pin Molex + 1 x 3-pin Fan 1 x 4-pin Molex + 1 x 3-pin Fan Modular: Limited to 2 x PEG + 4 other runs |
24-pin EATX with 20-24 pin adapter EPS + P4 3 x 4-pin Molex, 1 floppy 3 x 4-pin Molex, 1 floppy 1 x 4-pin Molex 1 x PEG 1 x PEG 2 x SATA 2 x SATA 1 x 4-pin Molex + 1 x 3-pin Fan 1 x 4-pin Molex + 1 x 3-pin Fan 1 x 4-pin Molex + 1 x 3-pin Fan |
24-pin EATX with split P4 2 x 4-pin Molex, 1 floppy 2 x 4-pin Molex 2 x 4-pin Molex 1 x PEG 2 x SATA |
| Max. currents | +3.3V: 30A +5V: 28A +12V: 14A+15A -12V: 0.5A +5vSB: 2A |
+3.3V: 26A +5V: 28A +12V: 20A+20A (28A Max. combined) -12V: 0.8A +5vSB: 2.5A |
+3.3V: 26A +5V: 33A +12V: 20A+20A (30A Max. combined) -12V: 0.8A +5vSB: 2.5A |
+3.3: 20A +5v: 14A +12v: 14A+13A -12v: 0.5A +5vSB: 2.5A |
| Max combined 3.3V & 5V output | 130W | 170W | 185W | 130W |
Only the FSP Zen PSU accepts a full range of voltage inputs, which is probably of little concern to most users, but it's good to see at least one model here with broad input power compatibility. All should be quiet!, with their large or low-noise fans. We're fairly certain the Zen will be pretty quiet!, what with not having any moving parts...
The most notable features that can be pulled from the spec. table, are the Dark Power Pro's modular cables, and the NorthQ's power remote (more on that when we come to look at the PSU) and the Zan's fanless design.
The spec. sheets for PSUs often reveal some interesting numbers. NorthQ's NQ-4800-400, for example, seems to be able to provide the highest current at 3.3V, while it's the lowest-rated PSU of the bunch. In fact on paper it can give out 50% more juice on the 3.3V than the Zen 400W. We'll see how well the numbers match up to actual capabilities when we apply some load to these PSUs.
