Pure Power 11 FM 850W offers peerless dependability and best-in-class features such as modular cables. Whether you are assembling a very quiet system, upgrading your PC, or building a gaming system with an overclocked high-end GPU: Pure Power 11 FM 850W offers the best combination of features at a very popular price.
• 80 PLUS® Gold efficiency (up to 93.3%)
• Modular cables for maximum build flexibility
• 2 strong 12V-rails
• Silence-optimized 120mm be quiet! fan
• Advanced stability and voltage regulation thanks to LLC, SR and DC-to-DC
• 4 PCIe connectors for overclocked high-end GPUs
• Full suite of top safety features
• 5-year manufacturer’s warranty
Pure Power 11 FM 850W is certified 80 PLUS Gold with an efficiency rating of up to 93.3% – a truly outstanding level for this class of PSU. The most compelling benefit is lower power consumption, lower costs, and cooler, quieter operation. Whether you are building a very quiet system or gaming system: Pure Power 11 FM 850W is always the correct choice!
Thanks to the modular cables, all cables that serve no purpose are left out. For this reason, systems always appear very tidy. At the same time installation is performed much more conveniently. A smoother airflow results from the uncluttered layout of the system, which means lower noise and temperatures prevail inside the case.
Pure Power 11 FM offers 850W of continuous power with 2 independent 12V rails for signal stability and 4 PCI express connectors. It is suited to very quiet systems, upgrading or building multimedia, gaming or systems with an overclocked high-end GPU.
The silence-optimized 120mm be quiet! fan is thermally governed to strike the best balance between effective cooling and quietness. Airflow-optimized fan blades reduce turbulence, enabling best-in-class quiet functionality and the almost inaudible operation that be quiet! is famous for.
LLC and Synchronous Rectifier (SR) provide very stable operation and enhanced voltage regulation. The PSU is equipped with DC-to-DC conversion for tight voltage regulation even under heavy cross-loading conditions. This ensures reliable operation with the current generation of processors and graphics cards.
Model | Pure Power 11 FM 850W |
Continuous power (W) | 850 |
Peak power (W) | 900 |
Form factor | Version 2.52 |
Form factor EPS 12V | Version 2.92 |
Topology | LLC + SR + DC/DC |
Digitally controlled | - |
Voltage (Vac) | 100 - 240 |
Frequency (Hz) | 50 - 60 |
Input current (A) | 12 / 6 |
Power factor at 100% load | >0.97 |
Modern standby | ✓ |
Power consumption in standby (W) | <0.1 |
Average life time (h / 25°C) | >100.000 |
Operating temperature up to (°C) | 40 |
80 PLUS certification | Gold |
Efficiency (%) at 230V, 2% load | 74.5 |
Efficiency (%) at 230V, 10% load | 88.7 |
Efficiency (%) at 230V, 20% load | 91.8 |
Efficiency (%) at 230V, 50% load | 93.3 |
Efficiency (%) at 230V, 100% load | 91.2 |
Fan | Silence-optimized be quiet! fan |
Fan size (mm) | 120 |
Bearing technology | Rifle |
Motor technology | 4-pole fan motor |
Max. fan speed (rpm) | 2000 |
dB(A) at 10% load | 9.5 |
dB(A) at 20% load | 9.6 |
dB(A) at 50% load | 9.7 |
dB(A) at 100% load | 25.9 |
Multi-rail operation (12V rails) | 2 |
12V single rail operation | - |
Overclocking key | - |
+3.3V (A) | 22 |
+5V (A) | 22 |
+12V1 (A) | 40 |
+12V2 (A) | 36 |
+12V3 (A) | - |
+12V4 (A) | - |
+12V5 (A) | - |
+12V6 (A) | - |
-12V (A) | 0.3 |
+5Vsb (A) | 3 |
Max. combined power 12V (W) | 849.6 |
Max. combined power 12VHPWR (W) | 0 |
Max. combined power 3.3V + 5V (W) | 120 |
Hold-up time at 100% load (ms) | 20.3 |
Hold-up time at 80% load (ms) | - |
Power good signal (ms) | 100 - 150 |
Modular cables | ✓ |
Sleeved cables | P24 |
Flat cables | P4+4, P8, PCIe, drives |
Maximum cable length (cm) | 110 |
Cable length to motherboard (cm) | 55 |
No. of cables | 8 |
ATX-Motherboard (20+4-pin) | 1 |
P4+4 (CPU) | 1 |
P8 (CPU) | 1 |
P4 (CPU) | - |
12VHPWR cables | 0 |
PCI-e 6+2-pin (GPU) | 4 |
PCI-e 6-pin (GPU) | - |
SATA | 10 |
PATA | 2 |
FDD (Floppy) | 1 |
OTP (over temperature protection) | ✓ |
OCP (over current protection) | ✓ |
OPP (over power protection) | ✓ |
SCP (short circuit protection) | ✓ |
OVP (over Voltage protection) | ✓ |
UVP (under Voltage protection) | ✓ |
SIP (Surge & Inrush protection) | ✓ |
BSMI | ✓ |
CB | ✓ |
CCC | ✓ |
CE | ✓ |
cRUus | - |
cTUVus | ✓ |
CU | ✓ |
FCC | ✓ |
RCM | ✓ |
TÜV | ✓ |
UKCA | - |
Energy Star | 8.0 |
ErP | ✓ |
WEEE | ✓ |
RoHS | ✓ |
Triman | - |
Thumb screws | - |
Screws | ✓ |
Cable ties | ✓ |
Velcro cable ties | - |
User manual languages | CN, DE, EN, ES, FR, JP, PL, RU, TW |
OCK slot bracket with switch / OCK jumper | - |
SFX-to-ATX adapter bracket | - |
Dimensions without cable (L x W x H), (mm) | 160 x 150 x 86 |
Weight (kg) | 1.85 |
Color | Black |
Warranty (Years) | 5 |
Express replacement service in first year | - |
International hotline / free of charge | ✓ / DE, FR |
Article number | BN324 |
EAN code | 4260052188613 |
Dimensions, package (L x W x H), (mm) | 300 x 220 x 100 |
Gross weight, package (kg) | 3.07 |
Pieces per packaging unit | 4 |
Dimensions, shipping box (L x W x H), (mm) | 421 x 314 x 225 |
Gross weight, shipping box (kg) | 12.88 |
RRP (€) | 129.90 |
You are already using a be quiet! power supply and want to upgrade your system with a new PURE POWER 11 FM | 850W ? Check here which cables are compatible and don't need to be replaced.