Articles: Cases/PSU
 

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Cables and Connectors

The PSU is equipped with the following cables and connectors:

  • Mainboard cable with a 20+4-pin connector (54cm long)
  • CPU cable with an 8-pin connector (55cm)
  • CPU cable with a 4-pin connector (56cm)

  • Two graphics card cables with one 6+2-pin connector on each (55cm)
  • One cable with three Molex and one floppy-drive plug (54+14+14+14cm)

  • One cable with three SATA power connectors (53+15+15cm)
  • Two 8-pin connectors for detachable cables
  • Two 6-pin connectors for detachable cables

Included with the PSU are:

  • Two graphics card cables with one 6-pin connector on each (55cm)
  • Two cables with three Molex connectors on each (54+14+14cm)
  • Two cables with three SATA power connectors on each (57+15+15cm)

The selection of cables is just sufficient. If you don’t use adapters, you can connect a couple of graphics cards and about six hard disk drives (there are nine SATA power connectors in total, but one cable is going to be occupied by your optical drive and will not reach to the HDD cage in most system cases). Antec shows a good example with the peripheral power cables, by the way. There are four cables for the two connectors offered by the PSU. Two cables are PATA and two are SATA. Thus, the user can choose what is appropriate for his system configuration.

Specifications

The Signature SG-850 is rated for a continuous output power up to 829W and can yield 780 watts across the +12V rail which is split into four “virtual” output lines. These are perfectly normal specifications.

UPS Compatibility

Together with an APC SmartUPS SC 620 this power supply worked at loads up to 380W when powered from the mains but I had to reduce the load to 350W for the UPS to switch to the batteries normally. The PSU would occasionally produce gurgling sounds at that, so I can’t call this pair absolutely stable.

 
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