Noctua NH-D9L Review

So let’s review an alternative cooling system Noctua NH-D9L which is in many ways similar to the previously released Noctua NH-U9S. It is at least attractive because it is a miniature copy of Noctua NH-D15. But the question is: why was it needed to release two models with similar parameters and effectiveness in the 92mm fan cooler segment, which is not the most popular one.


Packaging is on the highest level traditional for Noctua. All the necessary information is presented on the box sides. The following components are included in addition to a radiator and a fan:

• reinforcement plate for Intel LGA115h sockets; • mounting studs for Intel LGA2011 and LGA 2011-3 sockets; • mounting feet and plastic stands for the Intel sockets; • mounting feet, plastic stands and screws for the AMD sockets; • knurled nuts to secure the feet on the Intel sockets; • additional brackets for mounting the second fan; • silicone gaskets for fans; • crosshead …

'Digital' PSU Corsair AX1200i Review

Power supply unit AX1200i designed by Corsair is a high-end product applied primarily in powerful desktop platforms. Its superior characteristics are currently widely spoken about, due to the promotion of the so-called 'digital' technology in PSU layout. 'Digital' PSUs employ digital signal processors instead of traditional analog controllers to provide for the utmost performance, efficiency, and facilities. Under Corsair's words, the implementation of digital options in the development of PC units, and particularly AX1200i model, is a justified measure viewed as from technological, so from economical prospect.

Basic Peculiarities

Corsair AX1200i is delivered in a large dual-base box, consisting of a paper cover and a corrugated cardboard. The box contains all basic information about the unit: +12VDC bus efficiency is estimated at 1204.8W/100A; the correlation between +12VDC bus and the overall power efficiency equals to 1.0 index that is supposed to be an excellent …

Modular Power Supply 650W Chieftec A80

Evaluating the effectiveness of modern computer power supplies, the most attention is paid to their coefficient of performance (COP) at a given load — usually means of 20%, 50% and 100%. At the same time, not less important requirement, established by standard 80PLUS should be considered. That means — the preservation of this level of performance for all occurring in the world supply voltage variations, that is in the range of 100-240 V.

The standard rules of 80PLUS at different levels (Basic, Bronze, Silver, Gold, Platinum, etc.) are performed for two voltage 115 V and 230 V. In both cases, the normalized PS should show the efficiency of not less than specified for each category level. Not usual power supply CTG-650C model of the new A-80 series from the Chieftec company is interesting in that it has officially claimed efficiency of 85% or more, but only for nets 220-240 V.

As the advantages of such solution can immediately be noted a lower price, due to less stringent …
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Registered at: 18 February 2012, 02:56
Last visit: 18 February 2012, 03:08