最近新しい GPU 私のために HTPC 旧型の電源は GPU とともに 8 ピン のPCIe 電力ケーブル. ザ· HTPC 約平均で使用されています 6 1日あたり数時間、電力は15p / kWhであり、壁での電力の削減は1ワットあたり年間33pで機能します。. これは大きな節約ではありません, ただし、消費電力が数ワット減少すると、節約量は.
Regular “80 plus” (別名 80 プラスホワイト) PSU are typically available for around £30 with the cheapest 80 プラスゴールド PSU starting at £50. ゴールドレーティングを選択する一方で 電源ユニット isn’t exclusively financial, the potential saving is worth considering. It is also worth considering that a gold 電源ユニット that is less wasteful will generate less heat which will mean less fan noise is needed which is also important in a HTPC. There are higher ratings available (Titanium and Platinum) but those products are prohibitively expensive, and also don’t tend to be available on lower power units. A typical HTPC doesn’t need anything like 800W+ and as the 80 plus ratings only allow lower efficiency at the extremes of the operating range an 80plus platinum 800W unit at 100W draw may actually be less efficient than a 400W gold unit.
Assuming an average power consumption of around 120W and a 400W power supply at 230V a gold rated unit would have to achieve at least 90% efficiency, whereas an 80plus white unit would have to achieve 82%. At these values the white-rated unit will consume just over 146W at the wall, whilst the gold unit will consume just over 133W, a saving of 13W, または年間4ポンド. At this rate the gold-rated unit will pay for itself within 5 年. PCをより頻繁に使用すれば、より早く元が取れます, またはPCがより多くの電力を引き出します, or if electricity prices go up. どれか 電源ユニット と 5 year warranty would appear to be a good investment on financial grounds alone, さらに低いノイズを考慮に入れると.
In terms of finding a reasonably price gold-rated unit, in the past I bought a 300W “HuntKey Jumper” but this is no longer available. Several retailers do have the Seasonic 350w GT 約£50で販売中. Whilst the specifications don’t mention it the pictures clearly show a 6+2 ピン のPCIe power connector as well as a 4+4 ピン CPU power connector which make it suitable for all current hardware.
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