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 …

'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 …

Motherboard Gigabyte Z77MX-D3H TH Review

Each new year brings new ideas for the developers of PC hardware. Since motherboards are indisputably the main component in the PC integration, their design and facilities are given the most attention. Hence, each manufacturer tries to implement some unprecedented technologies to attract potential audience by an improved performance and possibilities. Intel Thunderbolt technology is a hit of 2012; that is why, motherboard designers turned their looks into this direction. Gigabyte was among the first companies to integrate Thunderbolt interface into its products: model Z77MX-D3H TH is a bright evidence of it.



Integration


Motherboard Gigabyte Z77MX-D3H TH resembles the modification of its predecessor Z77MX-D3H, except for the availability of Thunderbolt interface and design of PCB. The renunciation of the third PCIe x16 slot allowed the manufacturer to free four lines of PCIe bus and employ Thunderbolt technology for their activation. As a result, a new product has got a …
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Hewlett-Packard G1-2009la based on Hewlett-Packard 2ABA (BY961AA#ABM)

  • CDROM
  • COMPUTER
  • DISKDRIVE
  • DISPLAY
  • HDC
  • HIDCLASS
  • IMAGE
  • KEYBOARD
  • MEDIA
  • MONITOR
  • MOUSE
  • NET
  • PROCESSOR
  • SYSTEM
  • USB
  • VOLUME
  • VOLUMESNAPSHOT