Antec Neo HE 430 power supply

Viewing page 3 of 5 pages. Previous 1 2 3 4 5 Next


As with most power supplies, two aluminum heatsinks dissipate the heat generated by the power conversion process. Most of the airflow should be drawn between the two heatsinks — directly across the main transformer. The heatsinks are well chosen for the straight-through airflow path.

Two chunky aluminum heatsinks flank the main transformer, creating an airflow channel around it.

A small amount of air will be drawn along the edge of the power supply, where heat-sensitive coils are nestled under the fins of the heatsink. An additional, smaller heatsink has been affixed to a MOSFET, and a vent in the casing provides additional airflow around these components.

A few heat critical components are located along the side of the power supply.
The rectangular "hole" in the plastic insulation corresponds to the position of a vent in the casing.

Very little airflow can be expected to pass along the other side of the power supply as the fan is not aligned to do so. Fortunately, much of this space is occupied by wires, which do not require cooling.

Mostly wires on this side.


The Neo HE came with a total of seven cable sets, all sleeved in flexible black mesh. All but the main ATX connector and the Auxiliary 12V connector are detachable.

  • 19" cable for the main 20+4-pin ATX connector
  • 20" cable for the 4-pin Auxiliary 12V connector
  • 23" cable with one PCI-e connector
  • 2 x 29" cable with three 4-pin IDE drive connectors
  • 2 x 30" cable with two SATA drive connectors
  • 6" Molex-to-floppy adapter (with two floppy headers)

The five detachable cable sets came packaged together in a tidy plastic packet. All the cables terminate in a 6-pin connector that can be plugged into any of the five output ports on the power supply. On close inspection, this connector is identical in shape and size to a PCIe connector, but the pin assignment is different. This could easily cause confusion for a first time user, as the either end of the PCIe connector will fit in the power supply, but only one end provides the correct electrical connection. There is some potential for electrical damage to the power supply or the VGA card if the power supply is turned on when the connector is installed backwards.

Antec points this out in the manual, but it's quite easy to miss if you're like me and don't read instructions. Apart from actually looking at the pin configuration, the only indication that the two ends are not identical is the "PCIe" marking on the connector that is meant to plug into the VGA card. Because the potential for a costly mistake here is quite high, it's probably a good idea to double and triple check that the connector is correctly installed before powering up the system for the first time.

All cable sets are detachable except for the main ATX connector and the +12V Auxiliary connector.

Both the number of connectors and the length of the cables should be enough for just about any system. There are a total of four SATA and six IDE connectors — more than enough for a 430W system. A Molex-to-Floppy adapter provides legacy support for people who still use floppy drives. Because both connectors plug into the same source, the short length of the adapter could become an issue if two floppy headers are needed in different places, for example, a PCI sound card and a fan controller. This is hardly a common situation though, and extra adapters are readily available through Antec and its resellers.

Cable lengths are generous, and connectors are numerous.

Previous 1 2 3 4 5 Next

Power - Article Index
Help support this site, buy the Antec NeoHE 430 power supply from one of our affiliate retailers!