Articles: Cases/PSU
 

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Circuit Design

The dual-transformer Flextronix design with two large capacitors in the center of the main PCB is already familiar to us. It’s the same as in the AX1200 model.

However, the design has been tweaked to support Corsair Link and meet the 80 PLUS Platinum requirements. The transformers are different. There are three additional daughter cards next to the DC-DC converters. And there are fewer and smaller heatsinks in the AX1200i.

The DC-DC converter cards have become smaller than in the AX1200, leaving room for the two larger cards. The third new card is located near the DC-DC converter to produce +5V voltage.

The hardware implementation of the Corsair Link interface is obviously based on these additional cards which were missing in the AX1200.

The circuit design is modern and overall the same as in the non-intellectual Corsair of the same wattage. 

Cables and Connectors

The Corsair AX1200i features all-modular design. The following is included with it:

  • One mainboard power cable with a 20+4-pin connector (60 cm)
  • Two CPU power cables with one 4+4-pin connector on each (65 cm)
  • Six power cables for graphics cards with one 6+2-pin connector on each (61 cm)
  • Three cables with four PATA power connectors on each (45+10+10+10 cm)
  • Four cables with four SATA power connectors on each (55+10+10+10 cm)
  • Two adapters from a PATA power connector to a floppy-drive plug (11 cm)
  • Interface cable for the Corsair Link unit (80 cm)

So, the AX1200i comes with the same cables as the AX1200 model except for the added Corsair Link cable which is long enough to place the Corsair Link adapter in any convenient location inside the computer case. The graphics card and mainboard cables are sleeved. The cables for peripherals are flat and more flexible. Every cable is marked with the PSU’s model name and is recommended to be only used with the AX1200i.

While the cables are sufficiently long, the short spacing between SATA and PATA connectors may provoke certain problems. It depends on the computer case design and the location of SATA/PATA devices whether this short spacing is going to be better than the conventional 15 cm. And still, it's easy to deal with some excess length of flexible cables while it’s impossible to make 15 cm out of 10 cm.

There are eight cables for peripheral devices although the PSU has only six connectors for them. This gives you more flexibility in configuring the cabling system.

Specifications

The AX1200i has the same specs as its i-less cousin and meets modern requirements (it can deliver all of its output power via the +12V rail). It also supports specific PC configurations that need a lot of power from the +3.3V and +5V rails: the combined load capacity of these rails is as high as 180 watts.

The standby source can deliver up to 3.5 amperes. This is somewhat higher than the standard 2.5 to 3 amperes, but high-wattage PSUs often have an increased load capacity of their standby source.

The only real difference between the AX1200i and the AX1200 is in their 80 PLUS certification. The intellectual version is Platinum while the older one, Gold.

 
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