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Corsair AX 760i and 860i

The packaging follows the same style with the previous models except for minor differences (the interior box is painted black, for example).

The layout of the texts and charts has changed on the back of the box, and the cable system information can now be found on the top of the packaging, yet the overall design style is the same.

The accessories now additionally include a Corsair Link adapter and a piece of paper with a web address from where you can download Corsair Link software. The PSU pouch is velvety. Otherwise, the accessories are the same as you get with the above-discussed AX series products.

Exterior Design

The AXi series differs from the AX visually, their exterior resembling the Corsair TX650 model (except for the modular connectors). The paint is less glossy than on the AX series PSUs we described above.

A plaque with model name can be seen on the back panel, far from the mains connector.

Circuit Design

There are even fewer internal differences between the AX 760i and 860i than between the AX series models discussed above (the top photo shows the 760W model and the bottom photo, the 860W model).

Like the AX series, the AXi PSUs feature an LLC resonant converter. The +3.3V and +5V voltages are generated via DC-DC converters.

One DC-DC converter can be found near the side panel of the case behind a daughter card with Corsair Link logic. The other is located between the modular connectors panel and the +12V circuitry.

Corsair refers to the AXi series as “digital” PSUs because the Corsair Link card allows controlling some of the PSU’s parameters.

The mains connector is not screened as carefully as in Seasonic PSUs. We wonder if this can show up in the output voltage ripple tests.

The PSU has few non-solid-state capacitors inside but the components we see here come from many brands. The photo shows Rubycon and CapXon ones while the huge input capacitor is made by Panasonic. There are also Nichicon capacitors inside this PSU.

Cables and Connectors

The all-modular AX760i and AX860i have the following connectors:

  • One connector for a mainboard power cable
  • Six connectors for CPU and PCIe power cables
  • Six connectors for peripheral power cables
  • Comm Port for Corsair Link adapter

Each model comes with the same selection of detachable cables:

  • One mainboard power cable with a 20+4-pin connector (61 cm)
  • Two CPU power cables with 4+4-pin connectors (65 cm)
  • Two graphics card cables with two 6+2-pin connectors on each (60+15 cm)
  • Two graphics card cables with one 6+2-pin connector on each (60 cm)
  • Two cables with four PATA power connectors on each (45+10+10+10 cm)
  • Two cables with four SATA power connectors on each (40+10+10+10 cm)
  • One cable with four SATA power connectors (55+10+10+10 cm)
  • Two adapters from a PATA power connector to a floppy-drive plug (10 cm)
  • Corsair Link cable (80 cm)

The selection of cables is actually identical to what you get with the AX760 and AX860 with the addition of a Corsair Link cable. We can only add that one of the modular connectors for peripheral cables is going to be empty because there are only five SATA/PATA power cables in the box whereas the PSUs offer six such connectors.

Specifications

The specifications are almost identical to those of the same-wattage AX series models except for a tiny increase in the load capacity of the +12V rail – by a mere 0.3 to 0.6 amperes. This must have been done to emphasize the higher position of the “digital” PSUs in Corsair’s product range. It has no practical value since modern computers need 30 to 40 watts from the +3.3V and +5V rails anyway.

Like the above-discussed AX series, the AXi has 80 PLUS Platinum certification and comes with a 7-year warranty.

UPS Compatibility

Working with our APC SmartUPS SC 620, both AXi series PSUs were stable at loads up to 380 watts when powered by the mains but neither could switch to the UPS’s batteries even at 280 watts.

 
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