0পিএসইউ ফলপ্রসু: আপগ্রেড মূল্য? part 3

This is the third install­ment in a series of art­icles address­ing পিএসইউ effi­ciency. Art­icle one focused on a [int­link id=“76” type=“post”]তাত্ত্বিক নতুন সার্ভারে[/intlink], শিল্প-icle 2 একটি উপর [int­link id=“77” type=“post”]টিপিক্যাল ডেস্কটপ পিসি[/intlink].  This art­icle will focus on a cur­rent real serv­er, and intro­duces a new পিএসইউ — an 80+ plat­in­um model.

The sys­tem spends a lot of time semi-idling (serving net­work and disk requests but not doing too much CPU-র কাজ).  I estim­ated that it would pull around 150W on aver­age, and then cal­cu­lated it below. It really did come out exactly like that!

অনাগ্রহ, assum­ing a cost of £0.10 per kWh this sys­tem would cost a total of £131.50 a year to run even with a per­fectly effi­cient পিএসইউ!

দী এটিএক্স স্পেসিফিকেশন প্রয়োজন 70% effi­ciency. Below is a com­par­is­on between a bare min­im­um এটিএক্স পিএসইউ এবং কয়েক অত্যন্ত দক্ষ পিএসইউ'গুলি.

জেনেরিক জন্য চিত্রে পিএসইউ is based on the min­im­um require­ment and is there­fore a worst case. I have cal­cu­lated a best-case yearly sav­ing, based on a kWh charge of 10p and assum­ing 24.7 usage.

উপসংহার: This is the first scen­ario where new high­er-effi­ciency PSUs are reas­on­ably price com­pet­it­ive based only on power usage. For such a sys­tem, a high effi­ciency পিএসইউ will pay for itself with­in approx­im­ately 3 years. If you plan to keep the sys­tem for more than 3 years a high effi­ciency পিএসইউ is a worth­while invest­ment as its TCO will be lower. As energy prices con­tin­ue to rise this TCO advant­age will widen.

হালনাগাদ (25-ডিসেম্বর 2011)

Added the HuntKey Jump­er R90. This পিএসইউ changes the con­clu­sion con­clus­ively. It pro­duces sav­ings of over £40, যার অন্তত দাম পিএসইউ!  A pay­back peri­od of 1 বছর, with an expect­a­tion that elec­tri­city prices will con­tin­ue to rise is well worth the investment.