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Beyond any applicable Newegg return policy, this item is warranted independently by the product's Manufacturer. Below is a summary provided for convenience only and may not be accurate or current.
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Manufacturer Limited Warranty period (parts): 5 years
Manufacturer Limited Warranty period (labor): 5 years
Antec's Signature Series SG850 power supply takes their passion for quality to the next level. The engineers have designed in details that maximize efficiency. Magnetic amplifiers have been replaced with voltage regulators for the 3.3V and 5V outputs reducing transient response time down to 10 microseconds. The faster response ensures a smoother power flow to your system.
The 80mm fan is regulated with Pulse Width Modulation so it can reduce speed by up to 50%. The dual double layer PCB does two things, it allows for a lower component density and increased efficiency. This lets the PSU take advantage of the slower potential fan speeds. It also helps the PSU to achieve an 80-Plus Bronze efficiency rating.
A hybrid system gives you the best of both worlds in cable management. Mandatory cables, like those going to the motherboard, are hard-wired for minimal resistance, and to save you assembly time. The 4 PCIe cables let you hook up multiple video cards to the SLI certified PSU. Peripheral cables can be added at need. Antec has put their signature on the PSU, so you can put yours on the whole system.
Pros: I have tried units from various other manufacturers.... several top end models. This is the quietest of them all, even ones that were claimed as "silent". This is because the fan is not the only thing that makes noise in a PSU. There is also a certain amount of electromagnetic interference that is audible in power supplies. Do the vsync test and you will know what I mean. Turn off vsync and then run a game or benchmark that will give you a high framerate (IE: ATITOOL, or an old game). Likely, even if you spent a lot of money on your high end power supply, you will hear some very freaky noises coming from your PSU if you don't have a bunch of other fans running loudly in your case. This is from low quality components (even in high end units). The noises that you will hear when you do this test will be signifcantly lower in this PSU. Also, the fan is virtually silent, even at medium to high load as long as you don't live in a sauna. DEAD SILENT, HIGHEST QUALITY, LOOKS GREAT.
Cons: Not 100% modular, but doesn't need to be. Be creative with your wire management people..... don't fault PSU's because they have some of the cords attached. This is for efficiency. Unless you got a bad unit (IE: DOA), there are no faults to this power supply... NONE. Personally, I like a shinier look to PSU's, but this one has a good look even though it isn't shiny.
Other Thoughts: To save your self some time (or waste some of it depending on how you look at it), go to u-tube and type in "power supply squeal". You will see two video reviews of mine right at the top that expose the low quality components on some high end PSU's. You can't make a better decision than but to purchase this unit. You can get cheaper, but you can also get crappier.
23 out of 23 people found this review helpful.
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Follow up to average review
Reviewed By: N/A on 7/11/2008
Tech Level: high - Ownership: 1 day to 1 week
Pros: The fan does not get loud under heavy loads. Power supply is stable under heavy loads. I would recommend this power supply to any one looking for one with high efficiency, stability, and a quiet fan. Antec support got back to me right away to assist me.
Cons: None
Other Thoughts: Follow up to last review regarding the power supply getting really hot during heavy loads. I moved the 9800GX2 to a different PCI Express slot further away from the power supply. This cooled the power supply down a lot. The power supply has worked great.
17 out of 17 people found this review helpful.
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Cons: AFTER THE HISSING NOISE (BAD CAPACITATORS PLAGUE) BURNT MB DO NOT BUY ANTEC YOU WILL BE SORRY
Other Thoughts: JUST DON'T BUY IT
0 out of 1 people found this review helpful.
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Very good unit
Reviewed By: Saligiad on 1/10/2010
Tech Level: somewhat high - Ownership: 1 week to 1 month
This user purchased this item from Newegg
Pros: It powers my rig... consistent power, quite, and cool, what more could you ask for!?
Cons: Doesn't double as a convection oven
Other Thoughts: I previously had an Antec EarthWatts 750W unit and though it was defective, but it was actually just my audio card, if the X-Fi audio card on the ASUS Crosshair III formula mobo is pushed in all the way, the system will not boot. This can be easily fixed by pulling out the card about 1/8 of an inch and adjusting it until it works
AMD Phenom II 965 125W ASUS Crosshair III Formula XFX Radeon HD-5770 GPU Antec 1200 Case Antec SG-850 Corsair Dominator DDR3 1600 x6GB Noctua CPU Heatsink and Fan(s)
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Top Notch
Reviewed By: on 1/1/2010
Tech Level: high - Ownership: 1 month to 1 year
This user purchased this item from Newegg
Pros: From opening the box, to the 3 month point of ownership, this PSU has surpassed anything in my experience. Unbelievably quiet, all cables reached where they gotta go in the large Antec 1200. Just the right amount of hard wired versus modular cabling. But the voltage stability is simply unique. Running OCT torture tests and looking at the graphs afterwards show a totally flat graph which makes for easier OC'ing and low CPU voltages (every day OC profile at 3.7 GHz on a 920 w/ CPU voltage of 1.125 and temps in low 50's on air.
Cons: Price premium over CP-850 which just about matches its electrical performance.
1 x Main connector (20+4Pin) 1 x 12V(P4) 1 x 12V(8Pin) 9 x peripheral 9 x SATA 1 x Floppy 4 x PCI-E
Features
Compatible with Core i7 Highest quality Japanese fan and capacitors ensure long-term reliability Guaranteed to deliver 850W at 50°C 80%+ Energy efficient under real world load conditions Ultra quiet, 80mm Pulse Width Modulation controlled fan Quadruple rail design for a total of 65A (780W) on +12V Multiple GPU and CPU ready Supports the latest ATX12V 2.3 and EPS12V 2.91 standards Backwards compatible with ATX12V 2.01 80Plus and NVIDIA SLI certified Modular cable design allows for greater customization and better airflow Auto-switching circuitry provides universal AC input (90-264 VAC) Over current/voltage/power Protection, and short circuit protection The SG-850 features DC to DC voltage regulator modules, which ensure greater system stability. Industrial-grade safety circuitry to prevent damage resulting from short circuits, over current and over voltage.
Manufacturer Warranty
Parts
5 years limited
Labor
5 years limited
Introduction
Antec's Signature Series SG850 power supply takes their passion for quality to the next level. The engineers have designed in details that maximize efficiency. Magnetic amplifiers have been replaced with voltage regulators for the 3.3V and 5V outputs reducing transient response time down to 10 microseconds. The faster response ensures a smoother power flow to your system.
The 80mm fan is regulated with Pulse Width Modulation so it can reduce speed by up to 50%. The dual double layer PCB does two things, it allows for a lower component density and increased efficiency. This lets the PSU take advantage of the slower potential fan speeds. It also helps the PSU to achieve an 80-Plus Bronze efficiency rating.
A hybrid system gives you the best of both worlds in cable management. Mandatory cables, like those going to the motherboard, are hard-wired for minimal resistance, and to save you assembly time. The 4 PCIe cables let you hook up multiple video cards to the SLI certified PSU. Peripheral cables can be added at need. Antec has put their signature on the PSU, so you can put yours on the whole system.
Highlights
850W Maximum Power The Antec Signature SG850 PSU provides a maximum power of 850W for a safe, reliable output for high-end computer systems.
80 PLUS Bronze Certified The 80 PLUS Bronze certified power supply provides high power efficiency of at least 82% at any load between 20% and 100%, saving your money on your electrical bill, reducing heat in your computer's system and prolonging its life.
Pulse Width Modulation Fan The Antec Signature SG850 power supply features an 80mm Pulse Width Modulation fan for whisper-quiet cooling.
NVIDIA SLI Certified The Antec Signature SG850 PSU has gone through a series of rigorous NVIDIA SLI certification tests for maximum system stability when building NVIDIA SLI PCs.
Advanced Hybrid Cable Management The advanced Hybrid Cable Management System provides an optimal solution for power distribution and airflow by hardwiring mandatory cables to reduce resistance and enabling peripheral cables to be installed as needed to minimize cable clutter for improved airflow.
Reviewed By: Breathless on 12/14/2008
Tech Level: high - Ownership: 1 month to 1 year
