Gigabyte UD750GM 750 W Review - No Lightning This Time 15

Gigabyte UD750GM 750 W Review - No Lightning This Time

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Value and Conclusion

  • The Gigabyte UD750GM 750 W retails for $130.
  • Delivered full power at 47°C
  • Properly set protection features
  • Efficient
  • Tight load regulation at +12 V
  • Ripple suppression is good enough
  • Low vampire power with 115 V input
  • Quality bulk cap
  • Long hold-up time
  • Compatible with Alternative Low Power Modes
  • Accurate power ok signal
  • Great soldering quality
  • Fully modular
  • Two EPS and four PCIe 6+2 pin connectors
  • 5-year warranty
  • Compact dimensions
  • Price should be lower
  • Performance not competitive
  • Will get loud if stressed
  • Transient response is mediocre
  • Loose load regulation on the minor rails
  • Lacks a 12+4 pin (12VHPWR) PCIe connector
  • Gigabyte advertises an HDB fan, but I found a rifle bearing one instead
  • Vampire power over 0.15 W with 230 V input
  • Inrush current with 230 V could be lower
  • Low PF readings with 230 V
  • EPS cable should at least be 650 mm long
  • Short distance between 4-pin Molex connectors
The UD750GM placed better in the overall performance chart than units of similar specifications and its higher-capacity UD850GM sibling, yet doesn't pose a threat to the competition, especially as its price tag is notably higher. This is not the best time to be building anything requiring electronic parts because stock is running low and demand is high, so pricing is through the roof. Gigabyte insists on using MEIC despite the problems with the first version of this platform. Indeed, the persistence has paid off to a degree because the new UD units are reliable even under challenging conditions, which the meticulously configured protection features play a vital role in. If only Gigabyte had listened right away, in the review of the P750GM. That having been said, we all need to move on.

As for further platform-specific improvements, I would like to see lower inrush current and better PF readings with 230 V input, tighter transient response on all rails, better load regulation on the minor rails, and vampire power consumption below 0.1 W.

I pushed the unit extra hard to ensure there were no issues, and there were none. I am not confident the Lelon caps are good—their specifications are good. However, it is above my pay-grade as a reviewer to conduct PSU torture tests. In today's market, getting good caps is difficult and expensive; such caps are reserved for brands that place large orders, so I can understand why lower production models have to use inferior caps. I would like to see a better fan since I don't have much faith in Yate Loon. Most brands use Hong Hua fans, and Gigabyte should probably ask for one. Advertising it as an HDB fan is also a poor choice since it uses a plain rifle bearing. HDB fans are considered of even higher quality than FDB ones, which is why they cost even more. Gigabyte should also upgrade the lower-capacity UD units with 12VHPWR connectors soon if it wishes these to stay competitive. The 6+2 PCIe connector will be incompatible with most upcoming GPUs, or at least that is the plan, so you'd be better off with a PSU with the new 12+4-pin PCIe connector.
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Oct 17th, 2024 04:16 EDT change timezone

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