Cooler Master
V750 SFX Gold 750W
AUTHOR:Onie T.
TESTED BY:Lucas N.
Published:

The Cooler Master V SFX Gold 750 ATX 3.0 is a 750W, SFX form factor, fully modular ATX 3.0 power supply, featuring a single fan mode and is priced at a current MSRP of $169.99 USD. 

Despite the availability and small form factor, our tests on two units revealed some reliability issues. We tested two units, the first sample died after the 20°C OCP test, while the second sample died during the OPP test. The following test results are from our first sample tested, as the second sample did not provide sufficient data. The first failed sample has been returned to Cooler Master, and they are investigating the cause. Updates will be provided as more information is available.

Performance-wise, if neither of the power supplies failed the protection tests, this power supply would have done well. Given the two failures during the protection tests, we cannot recommend the Cooler Master V SFX Gold 750 ATX 3.0.

WHAT YOU NEED TO KNOW

THE GOOD

  • Performance

    Good load regulation and good resiliency to brownouts.

THE BAD

  • Failed Testing

    Testing was incomplete due to hardware failures. This happened with two different samples.

THE REST

  • Overall

    Labs does not recommend this PSU. Both units failed before completing the full test suit. As a result, we cannot ensure its performance under high loads or its potential impact on your computer.

LINKS
Where to buy*
Newegg

*This website uses affiliate links. Purchases made through these links may provide compensation to Linus Media Group.

Hardware
HardwareNotes

The Cooler Master V SFX Gold 750 ATX 3.0 is a compact SFX form factor power supply, smaller in all dimensions compared to an ATX form factor. Though, it can be used in ATX-supported cases with the provided adapter bracket. 

In the Box, it included adequate accessories, such as velcro cable ties and zip ties. The included 12VHPWR cable is braided, while the rest of the cable set are of webbed construction and moderately flexible. The 12VHPWR cable allows delivery of up to 300W to a GPU, and has a 90 degree PCIe 5.0 connector. 

The fluid dynamic bearing fan is measured at 92mm. On the Cooler Master specifications webpage it specified that the Operating Temperature is 0°C to 50°C, though we cannot verify this through testing.

Please be aware that while we've tested the ATX 3.0 version of this power supply, there is a similarly named and branded power supply by Cooler Master that is distinct from the model we've tested. We tested the "V SFX Gold 750 ATX 3.0", but there is also a legacy model "V750 SFX Gold" with product numbers published on Cooler Master's website as "MPY-7501-SFHAGV-3XX" and "MPY-7501-SFHAGV". However, the label on our "V SFX Gold 750 ATX 3.0" states the product number as "MPY-7501-SFHAGV", so be cautious when ordering this model and make sure the package and listing clarify that it is the ATX 3.0 version.

In the Box

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Front of the box.

Construction

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Power input side of the PSU.

Case Format
Cable Form
Colour
Colour Theme
Case Width
Case Height
Case Length
Case Effective Length
Mass
Fan & Cooling
Top of the PSU displaying the fan.

Top of the PSU displaying the fan.

Cooling Method
Fan Diameter
Specifications
Bottom of the PSU displaying the specifications.

Bottom of the PSU displaying the specifications.

ATX Version
80PLUS Rating
Cybenetics ETA
Cybenetics Lambda
Input Frequency Range
Input Voltage Range
Operating Temperature Range
Storage Temperature Range
Cables
1xMotherboard
24-pin Motherboard:
2xCPU / PCIe
4+4-pin CPU:
2xCPU / PCIe
6+2-pin PCIe:
6+2-pin PCIe:
1x12VHPWR / 12V-2x6
12VHPWR (300W):
1xPeripheral / SATA
Molex:
Molex:
Molex:
Molex:
2xPeripheral / SATA
SATA:
SATA (Right Angle):
SATA (Right Angle):
SATA (Right Angle):
Power Ratings
+12 V+5 V+3.3 V+5 Vsb-12 V
CURRENT62.5 A20 A20 A3 A0.3 A
WATTAGE750 W120 W15 W3.6 W
750 W

Please note that the above ratings are manufacturer advertised specifications.

Features & Software
Features & SoftwareNotes

The V SFX Gold 750 ATX 3.0 operates with a single fan mode and has standard safety protections. While people expect their ATX power supplies to continue to operate after triggering the protections, technically the protections are only required to prevent any hazards to people or equipment. In this case, the protections triggered and the power supply no longer operated. 

The power supply is supported by a 10 year warranty, as expected for a power supply of this class.

Modes
Protections
Over Current Protection (OCP)
Over Power Protection (OPP)
Short Circuit Protection (SCP)
Over Temperature Protection (OTP)
Over Voltage Protection (OVP)
Under Voltage Protection (UVP)
Performance
PerformanceNotes

The V SFX Gold 750 ATX 3.0 maintained good voltage ripple for most of the load range with a jump at the 110% load for the 12V rail. 

It demonstrated good load regulation with a slight irregularity on the 3.3V rail, though this should not cause any issue in regular usage. Throughout the full rated output power range, there was a 0.237V voltage drop on the 12V rail, which is inside ATX specifications.

As for the excursion tests, it performed poorly for the 12V regulation of the excursions. The 12V rail dipped down to approximately 10.9V on the fastest 0.1ms excursions. A few of the test durations were inconclusive and testing could not be repeated as the power supply failed.

Voltage Ripple
Load Regulation
Power Excursion

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Productivity & Efficiency
Productivity & EfficiencyNotes

The V SFX Gold 750 ATX 3.0 is rated at 80PLUS Gold and met the requirements for this rating, measuring 91% efficiency at 50% of its maximum rated load. As for brownout tests, it performed quite well as it lasted long against the dropouts, only dropping at 18ms dropouts at full rated load.

As previously stated, one of the two samples tested died during the OCP tests, with the 12V rail causing the failure, as opposed to the minor rails in other failures that we have observed throughout our tests. As the OCP and OPP were set very closely to the actual rating, it did not always succeed at our 110% test points at 115V, which other power supplies typically have no issue with. Please note, we conducted these tests before we implemented the 300% OCP limit, therefore the -12V rail goes up to 523%.

Efficiency
Brownout
Brownout/Hold-Up Duration 115 V 60 Hz 20°C
Over Current Protection (OCP)
Test Configuration
Video Overview
Test Bench
AC Source
Automated Test Software
DC Load Mainframe
Dual Channel Loads
Chroma 63610-80-20
Environmental Chamber
Microphone
Multimeter
ON/OFF Controller
Chroma 80613
Power Meter
SC/OVP Tester
Chroma 80612
Thermocouple Scanner
Noise Analyzer
Single Channel Loads
Chroma 63640-80-80

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