- Product Dimensions: 33 x 15.9 x 16.5 cm ; 3.2 Kg
- Shipping Weight: 4.1 Kg
- Item model number: CP-850
- ASIN: B001RTPLWK
- Date first available at Amazon.ca: Feb. 7 2009
- Average Customer Review: Be the first to review this item
- Amazon Bestsellers Rank: #544,169 in Electronics (See Top 100 in Electronics)
850w Cpx Form Atx12v V2.3 Pwr Sup Dual Pcb Layout Sata Connectors
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- Power Provided (W):850 Watt
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ANTEC CP-850 850W CP PS ATX 12V EPS12V APFC PCI-E 80-PLUS SLI
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Most helpful customer reviews on Amazon.com
- The +12v rails have been stable so far
- Relatively low noise, low T at idle
- cable length is nice
- Solid pricing, although the CP-850 is a better deal if you can do without the extra wattage.
- NOT A kW PSU, 840W on the +12v rails, to get to a kW you have to use each voltage equally. By Comparison, the Corsair TX solution (their lower-cost solution in fact, compared to their HX series) generally has a +12v rail within 20-40W of the rated value. The +12v rail is by far the most relevant power source, so calling it a kW PSU is a trick that really shouldn't fool anyone. I knew this buying it, but it's still something buyer's should be aware of.
- occasionally a whiney, high-pitched noise, unsure of source
- Would MUCH rather at single +12v rail, the FAQ on Antec's website pushes this as a more stable solution (4 rails), but what they mean is an easier-to-make-more-stable solution, the Corsair TX-series has perfectly stable single +12v rails, at similar price points, just check out reviews.
Overall I'm happy with it, but unless you need the extra 70W I see no reason to recommend it over the TX750.
it's a great PSU if you have the above mentioned, as it's cheap, reliable, and improves airflow throughout the system.
It does have a few drawbacks though:
1. It's only partially modular, a "hybrid" if you will. It left me with an excess of cable management to work with. Not as nice as some of the fully modular systems I've worked with.
2. This system uses a rear-mounted fan, which means it pulls in already system-heated air. It runs a little bit warmer to-the-touch as a result.
3. Not sure if this is a built-in feature, or if mine is flawed, but the fan doesn't kick on until my system has been on for a few minutes. Either way, i'm not a fan (no pun intended) of it, as it allows for the PSU to heat up a little bit with very little air movement.
The only negative thing I can say is that it should be completely modular in my opinion, however if you have multiple components in the case then you will use a lot of the cables, so although it's not completely modular I needed all the permanently attached cables and more for my rig (I'm not even doing SLI) so go figure. Also this may be the Antec 1200's flaw but the PSU needs more peripheral connectors if you plan on using all the case fans in the case.
The positives are that the PSU is very quiet and the cables are plenty long enough to route away using the cable management features of the Antec 1200 case and probably any other case as well. Also there are plenty of SATA connectors which is great for future proofing. All in all good PSU, I know it's not cheap, although you cannot get a better deal anywhere than on Amazon, but you won't regret it once you install it and boot up.
Because Antec is using a larger Power-Supply standard, it allows for more features and better specifications compared to the smaller power-supplies you may be used to. With that, comes a much cheaper power-supply but it does not skimp on the features and abilities. I recently built an computer using an Antec p183 case which is one case that supports the use of the CP-850 power supply. If you're going to be utilizing an Antec p183, p193 or 1200 case then I highly recommend using a CP-850 class power supply. It would be ignorant to use any other power-supply because the case is practically designed with the intentions of using this larger power-supply.
Bottom Line: Get this power-supply is you have a p183, p193 or 1200, otherwise you're going to have difficulty fitting this power-supply in your case in addition to its extra-long cables.
So far I have had no problems at all. The psu does exactly what it is supposed to and stays nice and quiet even when the commuter is flat out running Boinc when I am not using it. Manages to power a fairly power hungry system withou breaking a sweat. Exactly what I wanted.
Only minor downside is that sometimes the power on surge is enough to trip my UPS but only if I have something else on the ups at the same time - easy enough to turn that off and try again!