GIGABYTE has quietly built a reputation for power supplies that do their job without much fuss. The GIGABYTE UD1000GM PG5 V2 ICE PSU keeps that streak going, and does so in a sleek, white design that is sure to add some style to any build. It is the newest version of GIGABYTE’s mainstream 1,000-watt unit. The update brings it in line with the latest power standards and manages to do this without pushing the price into flagship territory. For builders who want a modern, dependable power supply, the GIGABYTE UD1000GM PG5 V2 ICE PSU lands in a comfortable spot, delivering what you need without making you pay extra for flash many will never use.
We have reviewed a range of GIGABYTE PSUs in the past, with one of the biggest updates in this iteration being support for ATX 3.1. That standard was built for graphics cards that draw power in short, sharp spikes. Older power supplies were not designed for that kind of jump. The UD1000W ICE V2 is rated to handle those spikes without issue. This covers sudden jumps in power draw from the graphics card. It also covers jumps from the system as a whole.

The unit ships with a native 12V-2×6 connector. This is the 16-pin plug used by newer PCIe Gen 5.1 graphics cards. It can feed up to 600 watts on its own. Builders running NVIDIA’s RTX 50 series should not need an adapter at all, giving them one less piece of hardware to worry about when getting up and running.
As with most PSUs in its class, the GIGABYTE UD1000GM PG5 V2 ICE carries 80 PLUS Gold certification, meaning it wastes less power as heat during normal use. Cooling for the PSU comes from a single 120 mm fan. It uses a fluid-dynamic bearing design, with this type of fan tending to last longer than the cheaper sleeve bearings found in budget units, which is a good thing if you want to use the PSU over the life of your PC. This also means you can rest assured it will not have issues with most motherboards, and should be authentic with the wattage it boasts, something not all PSU’s on the market can attest to.
GIGABYTE tuned the fan in the GIGABYTE UD1000GM PG5 V2 ICE to remain completely off under light loads. That covers anything below roughly 20 percent of the unit’s rated output. In practice, during office testing, I found that the power supply remains silent during everyday tasks like browsing or writing documents. It means it is incredibly quiet, and you barely hear it until you ramp things up on the PC, something people who want a quiet work environment will love.

Inside, GIGABYTE leans on its usual Ultra Durable design choices with the UD1000GM PG5 V2 ICE. Looking inside, you will see Japanese-made capacitors throughout the unit. It also means a single +12 V rail for simpler cabling. A full set of protection circuits rounds out the package. These guard against overvoltage, overpower, short circuits, undervoltage, overcurrent and overheating. The whole unit stays fairly compact too. It measures 150 mm wide, 85 mm tall and just 140 mm deep. That smaller depth should help it fit into tighter cases without the crowded-out feeling we have seen with some other offerings on the market.
“For builders who want a modern, dependable power supply, the GIGABYTE UD1000GM PG5 V2 ICE PSU lands in a comfortable spot, delivering what you need without making you pay extra for flash many will never use.”
As with most modern PSUs, the GIGABYTE UD1000GM PG5 V2 ICE features fully modular cable connections, so you only connect what you need, keeping the build cleaner and easier to show off. Every cable uses tinned copper wiring under a black, sleeved finish. The bundle includes two EPS connectors on a single cable. It also includes the native 600-watt 12+4-pin connector built for PCIe Gen 5.1 cards. Four more 6+2-pin PCIe connectors come split across two cables.
There are eight SATA connectors spread across two cables as well. Three 4-pin Molex connectors share one cable, and a single floppy-style connector rounds things out for older accessories. Cable lengths run generously by modern standards. The main ATX cable stretches 600 mm, while the PCIe Gen 5.1 cable reaches 700 mm. That should leave plenty of room in most full-tower or mid-tower cases.

GIGABYTE backs the UD1000GM PG5 V2 ICE PSU with a 10-year warranty. That is standard for a power supply at this level and a reassuring sign for anyone planning a long-term build. Sitting at around $159.99 USD, the GIGABYTE UD1000GM PG5 V2 ICE PSU is priced roughly in line with other 1,000-watt Gold-rated units from rival brands. For that money, GIGABYTE has packed in a lot of performance and longevity, helping to ensure your next build performs at its best for as long as you need it to.
None of this is flashy, and the GIGABYTE UD1000GM PG5 V2 ICE does not try to be. It sticks to the core features that matter most in a power supply and does them all very well. That means clean, stable power delivery. It means quiet day-to-day operation. And it means enough headroom for a demanding graphics card. For a mainstream 1,000-watt build, especially one built around a newer PCIe Gen 5.1 card, it is a solid, low-issue choice that is sure to last the length of your next PC. Once it is installed, there should not be much reason to think about it again.
- 1000W Capactiy with Single +12V Rail
- Supports PCIe Gen 5.1 graphics cards (16 Pin)






