Chieftec Navitas Gets a 450-Watt Update

First launched in 2013, Chieftec Navitas series of PSUs included five high-efficiency models of up to 1250 W power. This year the company has introduced four new editions to the family which are characterized by low power: 450 W, 550 W, 650 W, and 750 W. This update is called to satisfy the needs of unpretentious customers who require stability rather than records.



New Chieftec Navitas power supply units come equipped with a single +12V bus that covers 100% power. Hence, it’s possible to integrate the models into the latest system configurations. All of them correspond to 80 Plus Gold standard, achieving up to 87% efficiency in a wide range of operational conditions.


Their other peculiarities involve a fully modular cable system, the availability of a low-noise 120 mm fan, the support for Active PFC technology and all known protection features (i.e. OPP, OTP, UVP, OVP, SCP).


To continue, Chieftec Navitas GPM-450S ensures 450-watt power on +12V rail & up to …

Motherboard Biostar Hi-Fi Z77X Review

Biostar is the company known for the continual advancement of its brand products. Not an exclusion is its motherboard sector which is represented by dozens of high-end items. Recent days have been marked by the Biostar's announcement about the start of sales of its new motherboard, codenamed Hi-Fi Z77X, that belongs to PURO Hi-Fi lineup. The new motherboard is a conglomeration of unique facilities developed specifically to satisfy the needs of inveterate audio fans.



Specifications and Supported Technologies


Biostar Hi-Fi Z77X is developed in ATX form-factor with the involvement of high-end electrolyte capacitors. This model is compatible with LGA1155 processors Intel Core i7, i5 and i3, including the latest 22 nm Ivy Bridge chips of the third generation and 32 nm Sandy Bridge chips of the preceding generation. This motherboard is equipped with four DIMM DDR3 slots and is able to support up to 32 GB of two-channel DDR3-1600, 1333, and 1066 MHz RAM. It also supports DirectX …

Asus Boasts One More Graphics Adapter with a Two-Slot Cooler

Asus has replenished its graphics card series based on Kepler architecture with a brand variation of one-chip GeForce GTX 680 adapter. Brand Asus GeForce GTX 680 card has been developed on an original in design circuit board and is notable by the doubled to 4GB GDDR5 memory capacity. Nevertheless, the most outstanding characteristic of a new product is the implementation of a two-slot cooling system, codenamed DirectCU II. Earlier Asus equipped its GeForce GTX 680 adapters with three-slot coolers.



The company decided to concentrate mainly on the introduction of an uncommon cooling system, leaving all frequency showings identical to the recommended by Nvidia index. Thus, graphics core operates at 1006 MHz frequency, while memory module works at 6008 MHz. Memory chips are soldered on both sides of the circuit board. The reverse side of PCB is covered by an aluminum plate that is in direct contact with GDDR5 chips.


Some IT professionals dare assuming that the rejection of …
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