Specifications and Features
The following specs and features are direct from PC Power and Cooling’s product page for this unit.
Silencer Mk III 750W
Offering industrial-grade performance and stability for demanding computing environments, the Silencer Mk III 750W provides ultimate efficiency, stability, and ultra-quiet operation with a modular cable design. Engineered with only premium components, including Japanese 105°C capacitors and heavy-duty protection circuitries, the Mk III 750W maintains continuous output at 50°C and efficiently delivers power through a single +12V rail, and sporting the Dual Thermal Control System, a sophisticated operation that allows the PSU to switch between normal and silent mode seamlessly. Backed with PC Power’s complete confidence in reliability with an industry-leading 7 year warranty, this PSU offers ultimate peace of mind.
- 750W Continuous @ 50C
- SLI and CrossFire Ready
- 80-Plus Gold Certified (90% Efficiency); .98 Active PFC
- 140mm double ball-bearing fan
- +12VDC @62A (Powerful Single Rail)
- Premium Components with 100% Japanese 105°C Capacitors
- Modular Cabling Design with High-Conductivity, Low-Resistance Metallic Connectors
- Dual Thermal Control System: Normal and Silent Operation
- 7-Year Warranty and Tech Support
So far, this sounds excellent. 50°C, Japanese capacitors, 80+ Gold, switchable fan, 7 year warranty, excellent! The single 12 V rail isn’t a selling point in my opinion, I’d rather see at least two on a unit in this size range. It’s not as large an issue as it is with a larger unit though.
| AC Input | |
| Operating Range: | 115-240 VAC 0.98 power factor |
| Frequency: | 50/60Hz |
| Current: | 10A |
| Efficiency: | 90% typical load (80+ Gold) |
| EMI: | FCC Class-B, CE, BSMI |
| DC Output | |
| Output: | +3.3V@24A,+5V@24A,+12V@62A, -12V@0.5A,+5VSB@3.0A |
| Regulation: | 3% (+3.3V, +5V, +12V) 5% (-12V, +5Vsb) |
| Ripple: | 1% (p-p) |
| Hold Time: | 30ms minimum |
| PG Delay: | 100-500ms |
| Safety | |
| Over Voltage Protection: | +3.3V, +5V, +12V |
| Over Current Protection: | 135% OPP |
| Agency Approval: | cTÜVus, CB, TÜV, CCC, C-tick, GOST, China RoHS, WEE, RoHS |
| Environmental | |
| Temperature: | 0-50°C |
| Humidity: | 10-90% |
| Fan Type: | 140mm ball bearing, thermally controlled |
| Miscellaneous | |
| Compatibility: | ATX12V & EPS12V |
| M/B Connectors: | 1 x 20+4-pin ATX 2 x 4+4-pin CPU |
| Video Connectors: | 4 x 6+2-Pin PCI-E |
| Drive Connectors: | 4 x Peripheral 12 x 5-pin SATA 1 x FDD Adapter |
| MTBF: | 100,000 Hours |
| Dimensions/Harness: | 150mm (W) x 86mm (H) x 180mm (L) |
| Power Cord: | US, EU, UK, CN, AU, JP, KCC |
| Warranty: | 7-Years |
Here we have a few interesting things, the first of which are the ripple and regulation numbers. The ATX spec requires 5% regulation on the three primary rails, PC Power and Cooling’s 3% is a solid improvement over that, but not necessarily epic. I expect that this PSU will do rather better than that. The 1% ripple number is the ATX spec (except for 3.3 V, which is allowed ~1.5%), I’d prefer to see 0.5% or less personally. The 1% mark may be difficult to hit on the 3.3 V rail, DC-DC designs often have a rough time of it.
Cable wise we have a good selection, I very much hope that the two CPU power cables are not both hard wired.
The MTBF of 100,000 hours (that’s >11 years) is perhaps a bit ambitious, but who knows. With a seven year warranty PC Power and Cooling is backing it up well.
Next, pictures!
