Hot Test Results (~45°C Ambient Temperature)

The FSP Hydro Ti Pro is rated for operation at an ambient temperature of 50°C. In the realm of PC power supply units (PSUs), their categorization often hinges on their temperature ratings, where a 50°C rating is indicative of quality high-performance products. The Hydro Ti Pro's 50°C rating is reassuring, aligning with its positioning as a premium product. This rating is a significant marker of its robustness and reliability, especially under high temperature conditions, underscoring its suitability for demanding applications and environments.

The performance of PC power supply units (PSUs) can significantly vary with changes in ambient temperature, a factor that largely hinges on the unit's design and build quality. In the context of the FSP Hydro Ti Pro PSU, its energy conversion efficiency demonstrates remarkable stability under varying thermal conditions. During hot testing, the Hydro Ti Pro shows an extraordinarily low efficiency reduction of just 0.2% at low loads, a figure that firmly sits within the realm of top-tier performance. Notably, even as the load intensifies, this decrement in efficiency remains impressively minimal, not exceeding 0.3%. This consistent efficiency profile under both low and high load conditions in elevated temperatures is indicative of the Hydro Ti Pro's superior design and thermal performance.

In challenging thermal environments, the cooling fan of the FSP Hydro Ti Pro PSU demonstrates a sophisticated operational profile. Contrary to more reactive cooling systems, the fan in the Hydro Ti Pro remains inactive until the load reaches 400 Watts, even when the ambient temperature is very high. This threshold highlights the efficiency and thermal management capabilities of the unit, allowing for substantial power delivery without immediate fan activation even under such conditions. Once the 400-Watt mark is surpassed, the fan's speed gradually increases, yet it does so in a controlled manner. The peak activity of the fan is never observed, even at maximum load, reflecting the well-engineered design capacity and capabilities of the Hydro Ti Pro.

Cold Test Results (~25°C Ambient Temperature) Gold vs Platinum vs Titanium: Gains and Energy Losses
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  • A5 - Wednesday, December 27, 2023 - link

    The Platinum model seems like a real winner based on the SPL graphs - 6dB quieter than the gold at full load and $130 cheaper than the Titanium.
  • Oxford Guy - Friday, January 12, 2024 - link

    I would say this gold unit has no reason to exist and the choice becomes value (platinum) and quiet (titanium).
  • Threska - Wednesday, December 27, 2023 - link

    Crème de la crème would be like the Zalman PSUs with their heat-pipe cooling.
  • Bobsy - Wednesday, December 27, 2023 - link

    Another great review from Fylladitakis! Thank you very much!
  • ballsystemlord - Thursday, December 28, 2023 - link

    I agree. It's great to see them complete the FSP review set.
  • plonk420 - Sunday, January 7, 2024 - link

    seconded @ review appreciation! really loving his PSU content with the absence of JonnyGuru 💚 and i actually saw something from the Hydro Ti/PTM line while i was bounced briefly to the Inbound side of my Amazon warehouse
  • skaurus - Wednesday, December 27, 2023 - link

    I'd bet parts of this article were written with help from some LLM tool, probably ChatGPT. For some reason I don't like that
  • Ryan Smith - Wednesday, December 27, 2023 - link

    You'd lose that bet, then.

    Let's get things straight here: it's the LLMs that are copying us. We don't need to copy LLMs when we were doing this first.
  • skaurus - Thursday, December 28, 2023 - link

    That's reassuring to hear!
  • ballsystemlord - Thursday, December 28, 2023 - link

    Having read so many of AT-s reviews over the years I can indeed reaffirm that this is a human written article.

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