Ripple: The Overlooked Threat to PSU Longevity and Performance
Ripple, a common issue in power supply units (PSUs), plays a significant role in system stability, particularly during overclocking. It represents AC fluctuations and noise in the DC rails of a PSU, posing threats to component lifespan and overall performance.
Ripple's impact is substantial. A mere 10°C increase in temperature can halve the lifespan of capacitors. Modern, high-quality PSUs mitigate this by having ripple and spike limits that are roughly half those specified by the ATX standard. The ATX standard itself limits ripple to 120mV for +12V and -12V rails, and 50mV for other rails. However, in top-tier PSUs with superior components and effective filtering capacitors, ripple levels are expected to be much lower than these specifications.
Ripple, though often overlooked, is a crucial factor in PSU performance and longevity. While ATX standards provide guidelines, exceptional PSUs go beyond these limits to ensure minimal ripple, protecting components and enhancing overall system stability.
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