Cold Test Results (~25°C Ambient Temperature)

For the testing of PSUs, we are using high precision electronic loads with a maximum power draw of 2700 Watts, a Rigol DS5042M 40 MHz oscilloscope, an Extech 380803 power analyzer, two high precision UNI-T UT-325 digital thermometers, an Extech HD600 SPL meter, a self-designed hotbox and various other bits and parts. For a thorough explanation of our testing methodology and more details on our equipment, please refer to our How We Test PSUs - 2014 Pipeline post.

The FSP Hydro Ti Pro power supply unit stands as a paragon of efficiency in its class, as evidenced by its stellar performance during room temperature testing, a testament to its 80Plus Titanium certification. This unit excels remarkably in its energy conversion efficiency, particularly at low to medium loads. The Hydro Ti Pro distinguishes itself from its counterparts with its unwavering efficiency across the full spectrum of load conditions, defying the common trend of efficiency decline at elevated loads. When subjected to an input voltage of 230 VAC, the Hydro Ti Pro boasts an average nominal load efficiency of a remarkable 95%, a figure that stands significantly above many of its peers in the power supply landscape. This exceptional efficiency recedes to 92.9% under a reduced input voltage of 115 VAC. Nonetheless, this dip may be significant but does little to overshadow the unit's overall performance, as it remains comparatively very high.

By design, the FSP Hydro Ti Pro features a sophisticated eco-mode for its cooling system, indicating that the fan's operation is dependent on the cooling requirements. However, the cooling strategy employed by this unit is notably efficient, with the fan commencing operation only when the load exceeds 500 Watts. This is a testament to the exceptional efficiency of the Hydro Ti Pro. Despite its substantial power output, the internal temperatures of the unit remain impressively low, a remarkable achievement considering its standard dimensions and high performance.

The cooling profile of the FSP Hydro Ti Pro is meticulously calibrated for minimal noise generation, particularly effective across the lower half of its load capacity. The fan does not even spin with loads up to 500 Watts, maintaining a quiet operation. Beyond this threshold, the fan's speed incrementally increases, but this escalation in speed is gradual and controlled, keeping acoustic levels in check. The fan never reaches a speed close to its maximum under these operating conditions, while temperatures remain very low.

Introduction, Examining Inside & Out Hot Test Results (~45°C Ambient Temperature)
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  • Surfacround - Wednesday, January 10, 2024 - link

    if anything he is “copying” his own web site (i believe) hardware busters. IMO, there is no better person to review PSU’s.
  • AndrewJacksonZA - Wednesday, December 27, 2023 - link

    Thanks for the detailed review, E.! I appreciate being better informed so that I can help people make better choices.
  • McGruberrr - Thursday, December 28, 2023 - link

    I purchased this PSU a while ago and encountered some qc issues with the provided cables. Specifically that several of the leads in the 12VHPWR connector were not secure. After fully seating the connector, two of the leads needed to be pushed into place with needle nose pliers individually each time it was connected. Otherwise, the compact dimensions and build quality look exemplary. My build was put on hold for other reasons so I can't speak to its real world performance.
  • wr3zzz - Thursday, December 28, 2023 - link

    Shouldn't reviews include comps to other brands, or a least a mention? This review basically just says FSP's most expensive PSU performs better than its cheaper PSU. It's useful I guess but doesn't help me much in choosing a PSU.
  • GeoffreyA - Thursday, December 28, 2023 - link

    My old computer had an AOpen PSU that, I believe, was made by FSP. It lasted 12 years, and still works, though that computer is not in use any more.
  • Rοb - Thursday, January 4, 2024 - link

    Unless I missed it you should have at least mentioned FSP's Hydro PTM+ power supplies, there's a reason the name includes the word "hydro"; but it's not because of the power supplies reviewed in this article.

    Their Hydro PTM+ series is water cooled, I don't know why these include that word; seems misleading.

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