I’m also ready for the top-tier model! The unboxing of the GIGABYTE UD1300GM PG5 Power Supply – A Newly Affordable Choice, compatible with ATX 3.0

The UD series power supply has consistently been a high-performance, cost-effective selection among GIGABYTE’s range of power supply products. Now, GIGABYTE introduces the inaugural 1300W power supply in the UD series, the UD1300GM PG5. Featuring impressive longevity, it incorporates a primary Japanese capacitor, a 14cm HYB Smart silent fan, and superior cooling fins. It has passed both the Intel ATX 3.0 specification test and earned the 80 Plus Gold conversion rate certification. The 16cm standard length and fully modular cable design provide ample room for cable management. Backed by a 10-year manufacturer warranty, this power supply promises reliable performance.

Here are the specifications for the GIGABYTE UD1300GM PG5 Power Supply:

  • Form Factor: Intel ATX 12V v3.0
  • PFC: Active PFC (>0.9 typical)
  • AC Input Voltage: 100-240Vac
  • AC Input Current: 15-6.5A
  • AC Input Frequency: 60-50 Hz
  • DC Output Wattage: 1300W
  • DC Output Voltage: +3.3V, +5V, +12V, -12V, +5VSB
  • Dimensions: 150 x 160 x 86 mm
  • Fan: 140mm HYB Fan
  • Certification: 80 Plus Gold conversion rate
  • Cable Type: Full Modular Cable set
  • Warranty: 10 years
  • Protection System: OVP/OPP/SCP/UVP/OCP/OTP
  • Cable Connectors: 1x 24 Pin motherboard connector, 2x 8 Pin CPU connector, 1x 12+4 Pin 12VHPWR connector, 8x 6+2 Pin PCIe Connectors, 12x SATA connectors, 6x Peripheral, 2x floppy

Unpacking GIGABYTE UD1300GM PG5 power supply

A few months ago, this platform introduced GIGABYTE’s updated “UD850GM PG5 rev 2.0” power supply. The key enhancements included compliance with the Intel ATX V3.0 standard and native support for 12VHPWR power supply cables. As a part of GIGABYTE’s mainstream power supply product line, the UD850GM PG5/UD850GM PG5 rev 2.0 was launched as a compelling option for gamers.

In its latest move, GIGABYTE has expanded the Ultra Durable power supply product series by incorporating the brand’s first-ever 1300W power supply, the UD1300GM PG5. This new model upholds the Intel ATX 3.0 standard and accommodates the 12VHPWR power supply. It comes with a 105°C primary Japanese high-quality capacitor, an advanced cooling solution, and a 14cm HYB large fan. Despite these numerous features, the UD1300GM PG5 maintains a standard length of 16cm.

UD850GM PG5 rev 2.0 and UD1300GM PG5 power supply.
GIGABYTE UD1300GM PG5 outer box packaging display.
The number of wire connectors and basic specifications are printed on the outer box.

The GIGABYTE UD1300GM PG5 is 2cm longer than the 14cm UD850GM PG5 rev 2.0, with dimensions of 150 x 160 x 86 mm, effectively making it 16cm in length. For those utilizing a compact mid-tower case, adjustments such as repositioning the HDD mounting brackets may be necessary to create more space for cable management.

Given the increase in physical size and the higher power capacity it’s expected to support, GIGABYTE has incorporated a larger 14cm HYB hydraulic bearing fan into the UD1300GM PG5 for improved heat dissipation. This fan also features an intelligent silence function; when the power supply experiences a low load, the fan will automatically halt to reduce noise, ensuring the quietest possible operation.

14cm HYB hydraulic bearing fan.
Current and power-related table.

The GIGABYTE UD1300GM PG5 power supply features a mechanical-style motif and Ultra Durable series design on the side. The rear is designed for exhaust, consisting mainly of extensive cooling vents with no additional switches. This implies that the built-in smart fan stop function is automatic and cannot be manually disabled.

This power supply utilizes a fully modular cable setup, allowing users to install only the necessary cables for their PC, offering more room for cable management compared to previous non-modular designs. Each cable slot is conveniently labeled with white text and outlined categories to facilitate easy installation. It’s essential that users carefully follow these labels to avoid any installation mishaps.

Power supply side and rear display.
Remember to remove the protective film attached!
Fully modular cable slot.

The GIGABYTE UD1300GM PG5’s interior is kept cool by a 14cm HYB smart silent fan and an enhanced heat dissipation solution. Upon disassembling the power supply, you’ll find several heat dissipation fins inside, contributing to better thermal management, which in turn prolongs the lifespan of internal components.

The primary capacitor within the power supply is a 105°C all-Japanese unit, providing a robust foundation for power delivery. The UD1300GM PG5 also boasts sixfold protection mechanisms, including OCP, OTP, OVP, OPP, UVP, and SCP, in addition to complying with national safety certifications, ensuring the stable operation of the power supply. Adhering to the 80 PLUS Gold standard, the GIGABYTE UD1300GM PG5 guarantees energy efficiency of 80% or higher at 20%, 50%, and 100% of the rated load, with a power factor requirement of above 0.9.

14cm fan.
The internal architecture of the power supply.
Use Japanese capacitors.

Intel has introduced a new ATX12V V3.0 power supply design guide and specification. Unlike 80 Plus, ATX 3.0 doesn’t have a certification mark; instead, power supply brands add this specification to the product box themselves. So, how can you confirm if a power supply has passed the Intel ATX12V V3.0 specification?

In fact, Intel provides a free ATX 3.0 power supply validation test platform. This platform utilizes testing equipment worth approximately 6.08 million Taiwan dollars to conduct a comprehensive six-hour automated test covering more than 600 test items. Upon completion, it generates a detailed report of around 90 pages, including design improvement recommendations. If the power supply passes the test and the manufacturer opts to disclose the information, Intel will list the power supply in its online database.

Passed the Intel ATX12V V3.0 test and certification and published on Intel’s official website.

GIGABYTE UD series power supplies have traditionally employed black flat modular cables. These flat cables are particularly advantageous in cases with limited space for cable management behind the motherboard. Nevertheless, the cables of the GIGABYTE UD1300GM PG5 have a certain degree of stiffness, which might require additional effort to bend and tie.

The power supply comes with a set of ATX 20/24-Pin motherboard power connectors. There are also two 8-Pin CPU connectors. High-end motherboards like the Z790 AORUS XTREME require two 8-Pin power connections, which the GIGABYTE UD1300GM PG5 can effortlessly accommodate, providing a full power supply.

One 24-Pin cable for the motherboard with a black flat design, the cable length is 610mm.
Two CPU 8-Pin power supply wires, the length of which is 650mm.

The conventional PCIe 8-Pin graphics card power supply interface on the GIGABYTE UD1300GM PG5 comes with three Y-shaped breakout cables and two single-head straight-through cables. Both types of cables are designed with black flat wires for efficient cable management.

Three y-shaped double-ended PCIe 8-Pin black flat cables with a length of 650+150mm.
Two straight PCIe 8-Pin cables with a length of 650mm.

GIGABYTE has specifically updated the UD PG5 model in the Ultra Durable series to natively support 12+4 Pin 12VHPWR power supply cables, providing direct compatibility with the new generation NVIDIA RTX 30/40 series graphics cards. This eliminates the need for adapter cables. The 12VHPWR cables, with their 12+4 Pin connector effectively making it a 16-Pin connector, have specific requirements regarding wire diameter and arrangement. Hence, these cables are covered with a braided sheath for added protection and durability.

Single 12VHPWR braided outer wire, the total length of the wire is 700mm.
12+4 Pin single power supply limit is 600W, the same as UD850GM PG5 rev 2.0.
When installing, make sure both ends of the wire are plugged in.

For powering additional devices, the GIGABYTE UD1300GM PG5 includes two different types of power cables. One type features four SATA connectors, each with a 180° end angle, with a total of three cables offering up to twelve SATA power connections.

The other cable type includes three large 4-Pin (Peripheral) connectors and a Floppy disk drive power connector. With two of these cables provided, you have a total of six Peripheral connectors and two Floppy connectors. However, these two power connector types are becoming less commonly used in newer-generation desktops.

Three 4x SATA cables, the cable length is 650+150+150+150mm.
Two 3x Peripheral and Floppy cables, the cable length is 600+150+150+150mm.
Peripheral and Floppy are not used much now.
AC wires, screws.

GIGABYTE UD1300GM PG5 Power Test


This power supply test platform utilizes a 13th generation Intel Core i9 13900K processor, paired with the Z790 AORUS XTREME flagship motherboard, and a GeForce RTX 4090 GAMING OC 24G graphics card for testing purposes. The software used for stress testing includes OCCT AVX2 and a combination of AIDA64 FPU and FurMark, with HWiNFO 64 used to check and record the values reported by the motherboard’s environmental control chip. Please note that there can be a 1~3% deviation in software monitoring, and the data provided is for reference only.

Test Platform Specifications:

  • Processor: Intel Core i9 13900K
  • Cooler: VALKYRIE C360-RGB
  • Motherboard: Z790 AORUS XTREME (rev. 1.0)
  • Memory: T-FORCE DELTA RGB DDR5 6200 MT/s 16GBx2
  • Graphics Card: GIGABYTE GeForce RTX 4090 GAMING OC 24G
  • Operating System: Windows 11 Professional Edition 21H2
  • Power Supply: GIGABYTE UD1300GM PG5
  • Water-cooling Fan: LIAN LI UNI FAN P28

The first step in the testing process is to use OCCT AVX2 mode to perform a load stress test on both the processor and graphics card simultaneously. After conducting a 15-minute stress test, data is analyzed through the Super I/O environmental control chip on the motherboard. Initial findings indicate that the +12V is sustained between a maximum of 12.096 V and a minimum of 12.024 V, while the +5V is maintained within a maximum of 5.040 V and a minimum of 5.010V.

The maximum power consumption of i9 13900K is 305.66W; the maximum power consumption of RTX 4090 is 462.56W.
OCCT AVX2 mode software stress test for 30 minutes, the value is reported by the environmental control chip ITE IT8689E.

Subsequently, the test employs AIDA64 FPU and FurMark. These are commonly used to assess the stability and temperature of processors and graphics cards, respectively. The two software programs are run simultaneously to execute high-load stress tests. HWiNFO 64 is employed to view motherboard information and record data.

After 20 minutes of testing, the recorded data indicates that the +12V is maintained at a maximum of 12.096 V and a minimum of 12.024 V. The +5V is held steady between a maximum of 5.040 V and a minimum of 5.010V. Lastly, the +3.3V is maintained within a range from a maximum of 3.324V to a minimum of 3.205V.

AIDA64 FPU + FurMark software stress test and the data collected during the test.

During the OCCT AVX2 testing, a FLIR ONE Pro infrared thermal imaging camera, specifically designed for mobile phones, was used to measure the temperatures of the power supply and cables. The graphics card’s 12VHPWR power supply wire was connected directly to the power supply slot of the graphics card, bypassing the use of the adapter wire that comes with the graphics card.

The cooling air outlet of the power supply is 45.3°C.
32.5°C for the slot area of ​​the power supply end of the module power supply wire.
The ATX_12V CPU power socket area on the motherboard is 35.2°C.
GIGABYTE GeForce RTX 4090 GAMING OC 24G powered by 12VHPWR 45.8°C.



This time, GIGABYTE has introduced the first 1300W power supply that exceeds the kilowatt level to the Ultra Durable power supply series, known for its value. The UD1300GM PG5 stands as the first 1300W power supply model among all GIGABYTE power supply products.

Despite the increased body length from 14cm to 16cm due to higher wattage, the internal fan has also been enlarged to 14cm. The use of an HYB smart fan, combined with the built-in smart fan stop function, offers a quieter experience during standby. Internally, the main Japanese capacitors comply with the Intel ATX 3.0 specification and have passed the 80 Plus Gold efficiency test and certification. Safety features include six types of circuit protection designs, such as OVP/OPP/SCP/UVP/OCP/OTP. Other product features include a 10-year warranty and a fully modular cable design.

Given that the Ultra Durable series has always been among GIGABYTE’s most cost-effective power supplies, I predict that the price of the UD1300GM PG5, expected to be released in early June, should be fairly reasonable. The power supply demonstrated stable capability and good performance in tests, even when paired with high-end flagship hardware like the 13900K, Z790 AORUS XTREME, and GeForce RTX 4090 GAMING OC 24G. If it’s priced competitively upon release, it would definitely be a new power supply option worth considering.

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Title: I’m also ready for the top-tier model! The unboxing of the GIGABYTE UD1300GM PG5 Power Supply – A Newly Affordable Choice, compatible with ATX 3.0