The Gigabyte UD750GM is a good PSU, however you will not see it among the many greatest PSUs as a result of for $10 to $20 {dollars} extra, somebody can get the top-performing Corsair RM750x (2021) and the EVGA SuperNOVA 750 G6.
We’ve got already reviewed the 1000W member of the UD household, that includes a PCIe 12+4 pin connector, and we thought to additionally check out the smallest member of the lineup with 750W max energy. The UD750GM is the successor of the P750GM, the primary variations of which had extreme reliability points. Gigabyte launched later upgraded variations of the P750GM and P850GM items. Nonetheless, there was no option to distinguish them from the older ones, and given the low recognition of those fashions, one of the best ways was to introduce a brand new line, the UD one, which makes use of the upgraded P-GM platform.
The Gigabyte UD750GM makes use of a completely modular cable design, and it’s Gold licensed by 80 PLUS. Within the Cybenetics scale, it achieves Platinum and Normal++ in effectivity and noise, respectively. The MEIC platform it makes use of is environment friendly and appears to have solved all reliability points. Somewhat bit too late, although. The 120 mm fan makes use of a rifle-bearing fan as a substitute of the marketed hydro dynamic, and the guarantee is lengthy sufficient at 5 years.
Specs
| Producer (OEM) | MEIC |
| Max. DC Output | 750W |
| Effectivity | 80 PLUS Gold, Cybenetics Platinum (89-91%) |
| Noise | Cybenetics Normal++ (30-35 dB[A]) |
| Modular | ✓ (totally) |
| Intel C6/C7 Energy State Assist | ✓ |
| Working Temperature (Steady Full Load) | 0 – 40°C |
| Over Voltage Safety | ✓ |
| Below Voltage Safety | ✓ |
| Over Energy Safety | ✓ |
| Over Present (+12V) Safety | ✓ |
| Over Temperature Safety | ✓ |
| Quick Circuit Safety | ✓ |
| Surge Safety | ✓ |
| Inrush Present Safety | ✓ |
| Fan Failure Safety | ✗ |
| No Load Operation | ✓ |
| Cooling | 120 mm Rifle Bearing Fan (D12SH-12) |
| Semi-Passive Operation | ✓ |
| Dimensions (W x H x D) | 150 x 85 x 140 mm |
| Weight | 1.42 kg (3.13 lb) |
| Kind Issue | ATX12V v2.31, EPS 2.92 |
| Guarantee | 5 Years |
Energy Specs
| Rail | 3.3V | 5V | 12V | 5VSB | -12V | |
| Max. Energy | Amps | 20 | 20 | 61 | 3 | 0.3 |
| Watts | 105 | 732 | 15 | 3.6 | ||
| Whole Max. Energy (W) | 750 |
Cables & Connectors
| Description | Cable Depend | Connector Depend (Whole) | Gauge | In Cable Capacitors |
|---|---|---|---|---|
| ATX connector 20+4 pin (610mm) | 1 | 1 | 18AWG | No |
| 4+4 pin EPS12V (600mm) | 2 | 2 | 18AWG | No |
| 6+2 pin PCIe (600mm+150mm) | 2 | 4 | 18AWG | No |
| SATA (600mm+150mm+150mm+150mm) | 2 | 8 | 18AWG | No |
| 4-pin Molex (500mm+115mm+115mm) / FDD (+150mm) | 1 | 3 / 1 | 18AWG | No |
| AC Energy Twine (1400mm) – C13 coupler | 1 | 1 | 16AWG | – |
The PSU contains all of connectors to ship its full energy with none issues, although it’s bizarre that the ATX cable is longer than the EPS ones. Often, it’s the different means round. Furthermore, there isn’t any want for a floppy (FDD) connector. They might set up a 4-pin Molex as a substitute and supply a Molex to FDD adapter for customers nonetheless needing this outdated connector. Lastly, it could be good to have a 150 mm distance between the 4-pin Molex connectors, which is the case for the SATA ones.
Element Evaluation
We strongly encourage you to take a look at our PSUs 101 article, which supplies priceless details about PSUs and their operation, permitting you to raised perceive the elements we’re about to debate.
| Common Information | – |
| Producer (OEM) | MEIC |
| PCB Kind | Double Sided |
| Major Aspect | – |
| Transient Filter | 4x Y caps, 2x X caps, 2x CM chokes, 1x MOV, 1x Chipown PN8200 (Discharge IC) |
| Inrush Safety | NTC Thermistor & Relay |
| Bridge Rectifier(s) | |
| APFC MOSFETs |
2x NCE Energy NCE65TF099F (650V, 24A @ 100°C, Rds(on): 0.109Ohm)
|
| APFC Enhance Diode |
1x JF SC0665 (650V, 6A @ 175°C)
|
| Bulk Cap(s) |
1x Nippon Chemi-Con (400V, 680uF, 2,000h @ 105°C, KMW)
|
| Principal Switchers |
2x NCE Energy NCE65TF099F (650V, 24A @ 100°C, Rds(on): 0.109Ohm)
|
| APFC Controller | |
| Resonant Controller | Champion CM6901X |
| Topology |
Major aspect: APFC, Half-Bridge & LLC converter |
| Secondary Aspect | – |
| +12V MOSFETs | no data |
| 5V & 3.3V | DC-DC Converters: 4x Alpha & Omega AON6354 (30V, 52A @ 100°C, Rds(on): 4.4mOhm) PWM Controllers: 2x uPI-Semi uP9303B |
| Filtering Capacitors |
Electrolytic: 10x Lelon (4-7,000h @ 105°C, RXW), 2x Lelon (4-10,000h @ 105°C, RZW), 4x Lelon (2-5,000h @ 105°C, RXK) |
| Supervisor IC | Weltrend WT7502R (OVP, UVP, SCP, PG) |
| Fan Mannequin | Yate Loon D12SH-12 (120 mm, 12V, 0.30A, Rifle Bearing Fan) |
| 5VSB Circuit | – |
| Rectifier |
1x JF Semiconductor SP10U45L SBR (45V, 10A)
|
| Standby PWM Controller | PR8109T |
The platform is offered by MEIC, which had a tough entry into the desktop PSU design with the P-GM sequence. MEIC is especially identified for its energy adapters. To one of the best of our data, Gigabyte is the primary to make use of this OEM for desktop PSUs. The design is clear, and the heatsinks are giant sufficient to deal with the thermal masses. The soldering high quality is great, however the components that Gigabyte used should not among the many greatest, particularly the cooling fan.
The transient filter is full. Moreover an MOV and an NTC thermistor and relay combo, we additionally discovered a discharge IC to limit power losses on the X caps.
The pair of bridge rectifiers can deal with as much as 30A mixed.
The APFC converter makes use of two NCE Energy FETs and a single increase diode. The majority cap is by Chemi-Con.
The primary FETs are put in in a half-bridge topology. An LLC resonant converter can be used to spice up effectivity.
We could not determine the 12V FETs with out desoldering the warmth sinks, which may injury them, and we would have liked the PSU to be totally operational in case we have to retest it sooner or later.
The filtering caps are by Lelon. On paper, their specs are top-notch, however I am sometimes skeptical of lesser-known producers. Latest issues in capacitor manufacturing so getting maintain of high-quality caps is difficult, if not unimaginable.
The standby PWM controller is a PR8109T IC.
On the face of the modular board we discover a number of electrolytic and polymer caps.
The primary supervisor IC is a Weltrend WT7502R.
Soldering high quality is great.
We aren’t keen on Yate Loon followers. Gigabyte ought to use one other model for the cooling fan, one of the crucial crucial components of a PSU.
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