Chieftec Vega Series: ATX 3.1 power supplies for the bread and butter sector 38 comments
Image: Chieftec
After initially prioritizing high-end, high-priced power supplies with the introduction of the Intel ATX 3.0 and 3.1 specifications, Chieftec is now also serving the middle class with the first two power supplies of the Vega series at market prices of up to 100 euros. The new 12V 2×6 connection and up to 850 watts are offered.
At launch, the new series comprises two models. The PPG-750-S and PPG-850-S provide 750 and 850 watts of nominal power, respectively.
Not modular, but with 12v-2×6
The 12v 2×6 as an optimized 12VHPWR connection introduced with ATX 3.1 is permanently present. It is intended to ensure reliable power supply for current Nvidia graphics cards, as the 16AWG wire cross-section is required here by the standard for the 60 cm cable.
Because unlike some entry-level power supplies based on ATX 3.1 or ATX 3.0, which do without it but only offer two PCIe cable strands (with a thinner 18AWG), a continuous power of 300 watts and more can also be delivered.
The other equipment consists of the ATX connector, four 8-pin PCIe connectors (as a Y cable), two EPS connectors, six SATA and three Molex connectors, which are permanently connected to the power supply.
80Plus Gold via LLC resonant converters
The LLC resonant converter can realize efficient switching, which is the state of the art to achieve 80Plus Gold efficiency. DC-DC step-down converters are intended to guarantee stable voltages even on secondary rails. An FDB fan with an edge length of 135 mm should also ensure smooth operation. The protection circuits are declared complete.
Chieftec Vega Series PPG-750-S (Image: Chieftec)
The PPG-750-S and PPG-850-S are available at the respective recommended retail prices of 89.90 euros and 99.90 euros. The warranty period is stated as 24 months.
Updated November 28, 2024 at 11:55 a.m.
The electrical coding of the sense pins should allow a maximum continuous power of 450 watts (PPG-750-S) and 600 watts (PPG-850-S) via the 12v 2×6 socket.
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