🔋 Power up silently, perform loudly.
The Cooler Master X Silent Edge Platinum 850 is a fanless, full modular ATX power supply delivering 850W of stable power with 80+ Platinum efficiency. Engineered with patented heat pipe and copper-aluminum thermal technology, it ensures ultra-quiet operation and superior cooling without fans. Designed for high-end gaming and professional rigs, it supports PCIe 5.1 GPUs like the RTX 4090 and features a PMBus port for advanced monitoring, backed by a 15-year warranty.
| ASIN | B0D62X3Y39 |
| Brand | Cooler Master |
| Compatible Devices | Desktop |
| Compatible devices | Desktop |
| Connector Quantity | 6 |
| Connector Type Used on Cable | 12VHPWR 450W PCIe 5.1, ATX, EPS, PCI Express, SATA |
| Connector type | 12VHPWR 450W PCIe 5.1, ATX, EPS, PCI Express, SATA |
| Cooling Method | Air, Heat Pipe |
| Customer Reviews | 3.4 out of 5 stars 10 Reviews |
| EU Spare Part Availability Duration | 15 Years |
| Form Factor | ATX |
| Form factor | ATX |
| Global Trade Identification Number | 00884102117121 |
| Item Dimensions | 18 x 15 x 8.6 centimeters |
| Item Weight | 9.92 Pounds |
| Manufacturer | Cooler Master |
| Maximum Input Voltage | 12 Volts |
| Mfr Part Number | MPS-8501-AZAP-BUS |
| Minimum Input Voltage | 120 Volts (AC) |
| Model Name | X Silent Edge Platinum 850 |
| Model Number | MPS-8501-AZAP-BUS |
| Model name | X Silent Edge Platinum 850 |
| Output Wattage | 800 |
| Output wattage | 800 |
| Power Supply Design | Full Modular |
| System Bus Connector Type | PCI Express |
| UPC | 884102117121 |
| Wattage | 50 watts |
K**C
Coil / electrical whine....
For how expensive this PSU is, (MSRP over $500) you would think this PSU would be absolutely silent. Well unfortunately it is not..... My unit out of the box has this annoying electrical / coil whine noise at idle load. Leave it to other companies to make a passively cooled psu like Silverstone, HDplex, etc. Part of the issue is, the unit's entire top is basically a vent to let heat radiate out so any electrical noise will be heard even though the marketing of this extremely expensive psu claims to limit it. I have a NJ450 and it is a fully enclosed passively cooled psu, it has a lower over temp protection but does not make any noise, true 0dB.
A**R
Just a bit loud
The only issue i have with the psu is the fan when it does decide to turn on is quite loud. other than that has worked flawlessly for the year or more I have owned it.
J**Z
PSU ruidosa - Activa el ventilador en ciclos estando en IDLE
Pensé que estaba defectuosa, pero no, así funciona y hace mucho ruido, es molesto y pues tuve que devolverla, si no te molesta, pues adelante. El ventilador entraba en un bucle en el que cada 4 minutos se encendía de forma agresiva con un ruido considerable (y duraba así casi 3 minutos activo), no era la tamperatura, ni el consumo, se probó sin GPU, en IDLE, fuera del gabinete, se le hizo muchas pruebas. Soporte técnico de Cooler Master comenta que el funcionamiento es "normal" y de hecho si buscas reviews en NewEgg, hay comentarios justamente sobre este comportamiento. Repito, si el ruido no te molesta, adelante, pero para un producto que lo venden como silencioso, pues no me conformo. De igual forma tengan cuidado con el cable para la GPU en forma de L, ya que algunas de serie 50 tienen ese margen para los 40mm, entonces pues no serviría porque el diseño puede estorbar.
C**O
Not fully ATX 3.1 compliant.
This PSU states ATX 3.1 but does not follow the standard. It may have burned out a $1400 server board. Why? It has -12v on pin 14. The ATX 3.1 standard clearly states this should be NC aka not used. Buyer beware. Luckily I was able to return this and RMA my dual Xeon board.
Trustpilot
2 weeks ago
3 weeks ago