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Antec VP450P

This model comes from Antec’s junior PSU series targeted at office machines or entry-level gaming PCs. It has already been replaced with the VP450 model (without the P suffix) but you can still find it in shops.

The VP450P comes in a small glossy cardboard box.

Exterior Design

The VP450P looks exactly like any other same-class model except for the black paint (entry-level PSUs often come unpainted).

Its case has a reduced length. The 12cm fan is covered with a wire grille. We’ll see a lot of such PSUs yet.

There are a few small vent grids in the panel with cables. The rest of the panels are blank.

Circuit Design

The real manufacturer of this product is FSP. You can see its marking on some components.

There’s nothing extraordinary inside: just an ordinary PSU with active PFC and without dedicated voltage regulation.

The small heatsinks are intricately shaped.

There is a Weltrend WT7527 chip next to the mains connector. It protects the PSU against overload, short circuit and other problems of this kind.

There are electrolytic capacitors from CapXon on the PSU’s output as well as elsewhere. These are rather good components from Taiwan.

Cables and Connectors

The Antec VP450P is equipped with the following cables and connectors:

  • One mainboard cable with a 20+4-pin connector (44 cm)
  • One CPU cable with a 4+4-pin connector (53 cm)
  • One graphics card cable with a 6-pin connector (44 cm)
  • One cable with three PATA power connectors (45+14+14 cm)
  • One cable with one SATA, one PATA and one floppy-drive plug (42+15+15 cm)
  • One cable with three SATA power connectors (45+15+15 cm)

Like with many other PSUs of this class, the mainboard power cable is sleeved, but the others are just strapped together.

Despite the straps, the cables stick out because the wires vary in length within a single cable. The other PSUs are not free from that problem, either, but it’s rather too conspicuous here.

The cables aren’t very long. You may have to lay the mainboard cable out through the main interior of your chassis rather than through a cable compartment if you’ve got a system case with a bottom PSU bay.

It’s good that there is a dedicated cable with a single SATA connector, yet it is going to be too short to reach from a bottom-bay PSU to the optical drive bay.

Specifications

The specifications are typical enough for an entry-level product. The PSU can give you 360 out of its full 450 watts across the two +12V lines. The combined load capacity of the +3.3V and +5V rails is 120 watts.

The max load on the +5V rail is unexpectedly low at 15 amperes. Although it’s more than enough for modern PCs, this rail usually has a higher load capacity.

UPS Compatibility

The PSU was stable with my APC SmartUPS SC 620 at loads up to 395 watts when powered by the mains but could only switch to the UPS’s battery at loads up to 285 watts.

 
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