Zalman ZM-850-HP 850 Watt Quiet Power Supply - 140mm Near Silent Cooling Fan
ZM850-HP is ultra-quiet power supply complies with ATX12V Version 2.2, and supports the lastest DUAL-core, QUAD-core CPUs(Intel Core2 series/AMD
Athlon64-X2 series), as well as the lastest dual graphic card systems(NVIDIA® SLI™-Ready Certified).
Zalman ZM-850-HP 850 Watt Quiet Power Supply
Dual Heatpipes Installed for Maximum Cooling Performance and Ultra-Quiet Operation
Dual heatpipes with ultra-high cooling performance incorporated on the main heat sources enable high load operation even at low fan RPM for a dramatic
reduction in noise levels.
Improved Power Factor & Reduced Harmonics through Active PFC
By implementing Active PFC(Power Factor Correction), the Power Factor (PF) is improved up to 99% while harmful harmonic frequencies are reduced to
meet the Line Harmonic Distortion Requirement of IEC61000-3-2 Class D Specification.
High Efficiency Design and 80 PLUS Certified
This power supply is capable of reaching a maximum of 86% efficiency (230VAC, Full & Typical Load) through its use of high switching
frequency and low power-loss circuitry. This product has been certified with the 80 PLUS Power Supply Certification and guarantees a higher
efficiency compared to uncertified products.
* 80 PLUS is an innovative, electric utility-funded incentive program that strives to integrate more energyefficient power supplies into desktop
computers and servers.
ATX20+4 Pin Main Connector
ATX20+4 Pin Main Connector broadens the range of motherboard compatibility.
Supports ATX12V CPU 4-Pin and EPS12V CPU 8-Pin
Two ATX12V CPU 2 2 (4-Pin) power cables can be combined to form an EPS12V CPU 8-Pin power cable.
Four PCI Express VGA Power 6-Pin & 6+2 Pin Connectors
Four independent 6-Pin Power Connectors (two 6-pin & two 6+2 pin) provide support for Nvidia’s Quad SLI and ATI’s CrossFire.
Modular cables provide organized cable management and improved air circulation inside the computer case.
Ultra Quiet 140mm Fan
The ultra quiet 2 ball-bearing 140mm fan maximizes the airflow and minimizes the noise level enabling a noiseless computing environment with optimized
Standby Noise Filter Switch
The 5Vsb Noise Filter eliminates high frequency noise in standby mode.
* The Standby Noise Filter Switch is NOT a power switch. The AC Power Cord MUST be unplugged in order to turn the power supply OFF.
Six Independent +12VDC Outputs
Six +12VDC rails supply power independently to the CPU, VGA, motherboard, and peripheral components for the highest level of stability and
EZ Grip Connectors for ODDs & HDDs
EZ Grip Connectors for easy removal of the plugs from ODDs & HDDs.
Gold-Plated Terminals & 16AWG Wires
All connector terminals are gold-plated to minimize contact resistance and power lose.
16AWG (thicker than 18AWG) wires are incorporated to minimize voltage drop during high load operation.
All power cables are sleeved for easy cable management and improved air circulation inside the computer case.
Multiple Safety Features
Over-Voltage Protection, Over-Current Protection, Short-Circuit Protection, Under-Voltage Protection, Over-Temperature Protection.
WEEE & RoHS
Complies with WEEE & RoHS environmental directives of the European Union.
- WEEE (Waste Electrical and Electronic Equipment)
- RoHS (Restriction of Hazardous Substances)
International Safety and EMC Certifications
Output Power Cable Specifications
[Cable Types and Functions]
[Dual-Connector (ZM-DC1) Components]
Electrical & Physical Characteristics
AC Input Range
100VAC ~ 240VAC ±10% DC Output
Frequency 47Hz~63Hz ZM850-HP
AC Input Current
(Rated) 115VAC 12A Output V. Output Load
230VAC 6.3A Imin Imax Ipeak
PFC Type Active PFC +3.3V 0.8A 25A 35A 191W 850W
Power Factor 99% Maximum
+5V 0.5A 30A 35A
Limit (@ Cold start at 25°C) 115VAC 60A
+12V1 0.5A 18A 22A 768W
230VAC 100A +12V2 0.5A 18A 22A
Efficiency 86% Maximum @230VAC, Full&Typical load
+12V3 0.5A 20A 24A
Output V. Regulation Range
Load +12V4 0.5A 20A 24A
+3.3V ±5% +3.14V~+3.47V
+12V5 0.5A 18A 22A
+5V ±5% +4.75V~+5.25V +12V6 0.5A 18A 22A
+12V1 ±5% +11.4V~+12.6V -12V 0.0A 0.8A 27.1W
+12V2 ±5% +11.4V~+12.6V +5VSB
0.1A 3.5A 4A
+12V3 ±5% +11.4V~+12.6V Protection Features
+12V4 ±5% +11.4V~+12.6V Over Voltage Protection(OVP)
+12V5 ±5% +11.4V~+12.6V Over Current Protection(OCP)
+12V6 ±5% +11.4V~+12.6V Short Circuit Protection(SCP)
-12V ±10% -10.8V~-13V Over Temperature Protection(OTP)
+5VSB ±5% +4.75V~+5.25V Under Voltage Protection(UVP)
& Noise Output V. Specification At Full
Load Ambient Temperature
+3.3V 80mV Operation 0°C ~ +50°C
+5V 80mV Storage -20°C ~ +80°C
+12V1&2 120mV Ambient Humidily
+12V3&4 120mV Operation 5%RH ~ 95%RH
+12V5&6 120mV Storage 5%RH ~ 95%RH
-12V 120mV Dimensions
+5VSB 80mV 210(L) X 150(W) X 86(H) mm
To create a true noise-free computer, Zalman’s Quiet CPU Cooler, Quiet VGA Cooler, Heatpipe HDD Cooler, Fanless Northbridge Cooler, and Noiseless
Case Fan should be used together with this product.
This power supply is capable of reaching a maximum of 86% efficiency (230VAC, Full & Typical
Load) through its use of high switching frequency and low power-loss circuitry. This product has
been certified with the 80 PLUS Power Supply Certification and guarantees a higher efficiency
compared to uncertified products.
* 80 PLUS is an innovative, electric utility-funded incentive program that strives to integrate
more energyefficient power supplies into desktop computers and servers.
The "Dice Man" rolls the dice and give this power supply the Virtual Hideout recomended gear award for being a
silent, powerhouse energy efficient power supply. Click here > to see full review @ www.virtualhideout.net
This Zalman ZM850-HP was absolutely silent and I didn't notice any vibrations at all. However if you need a powerhouse
power supply like this and you're somehow running (or trying to run) and super silent and vibration free system, you can
always add one of these Fansis PSU gaskets to your order. It'll further absorb any unwanted vibrations. I've used one on lots of
cases and they do what they say they do.
Quote by the "Dice Man"
I'd like to send a thanks to Acoustic PC for sending out this unit for review. If you're looking for just about anything for quiet cooling for your computer, be
sure to check them out. It's what they do!
[Energy Efficient Green Power 80 PLUS Certified]
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