Overview of the Gigabyte UD1000GM power supply

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Gigabyte has launched its new UD1000GM power supply which is designed for the upcoming PCIe 5.0 graphics cards including the rumored GeForce RTX 40 graphics cards. ‘UD1000GM has to offer.

Features

Model GP-UD1000GM
Type Intel ATX 12V v2.31 form factor
PFCs Active PFC (>0.9 typical)
Input voltage 1200-200 Vac (full range)
input current 6.5-15A
Input frequency 50-60Hz
Output capacity 1000W
Dimension 150 x 140 x 86mm
fan type 120mm hydraulic bearing fan
Efficiency 80 PLUS Gold (90% at typical load)
MTBF >100,000 hours
protection OVP/OPP/SCP/UVP/OCP/OTP
Good signal strength 100-150ms
Waiting time >16ms
cable type Flat, All black
Connectors
  • ATX/MB 20+4 pin x 1
  • CPU/EPS 4+4 pin x2
  • PCIe 6+2 pin x 3
  • SATA x 8
  • 4-pin peripherals + 4-pin floppy x 1

Unpacking

As the UD1000GM is currently the only model in the series that is ready for PCIe 5.0 graphics cards, Gigabyte has specifically highlighted PCIe Gen5 compliance for this model on the front of the box. Cables, connectors and specifications are on the back of the box if you want to know more about the product before making your purchase.

Although they’re still technically in the same series, lower power models like the UD850GM and UD750GM don’t come with the 16-pin power cable, so that’s something to consider.

Gigabyte UD1000GM Power 30

Cables supplied with the UD1000GM include 20+4 pin ATX/MB, one pair of 4+4 pin CPU/EPS, three 6+2 pin PCIe cables, one 16 pin PCIe power cable for PCIe graphics cards 5.0, SATA power cables and 4-pin peripherals + 4-pin floppy.

I noticed that some cables are actually not labeled when inspecting the included accessories. This isn’t much of an issue for experienced PC builders, but for those new to PC building, it can cause serious damage if plugged into the wrong outlet. So I think it’s best that Gigabyte can look into this and make the necessary changes.

And here it is, the much-hyped 16-pin power cable for new and future PCIe 5.0 graphics cards. It kind of reminds me of the power cable used on the NVIDIA GeForce RTX 30-series Founders Edition cards, but the design is actually different and it can actually deliver up to 600W of power with a single cable. This is actually something I’m looking forward to, as this new design can greatly improve the overall look and cable management of your system, much better than the existing PCIe power connectors.

Gigabyte UD1000GM power supply

The design of the UD1000GM is pretty simple I would say – no unnecessary RGB lighting, honeycomb grille design to maximize airflow etc.

Gigabyte UD1000GM Power Supply 14

On the other side of the power supply you will find this label with information about the specifications of the UD1000GM. For PCIe power output, we can see that you can use either the standard PCIe power connector or the new standard for PCIe 5.0 (+12VHPWR) graphics cards, which are capable of 1000W output.

Moving on to the allocated sockets on the power supply itself, this is pretty much what we normally see on a fully modular design power supply, but with an additional socket for the 16 pin PCIe power supply for PCIe 5.0 graphics cards.

User experience

We weren’t able to test the new 16-pin PCIe power supply because we didn’t have a PCIe 5.0 graphics card, but we’ll still run the usual system load test with the UD1000GM. The following is a list of the components used in the tests we performed for those interested in knowing the configuration of our test system.

CPU AMD Ryzen 9 5950X
Motherboard X570S AORUS MASTER
Memory TeamGroup T-Force Dark Z FPS DDR4-4000 CL16
Graphic card NVIDIA GeForce RTX 3080
Power source Gigabyte UD1000GM
Primary storage CORSAIR Force MP600 Gen4 PCIe x4 NVMe M.2 SSD
Secondary storage WD Black 6TB Hard Drive
CPU cooler Cooler Master MasterLiquid ML360R
Frame Streamcom BC1 Open Bench Table
Operating system Windows 11 64 bit

For the stress test, we use the usual FurMark GPU stress test tool, ROG RealBench, Cinebench R23, Prime95 and each runs for at least 1 hour. The system’s highest total power consumption will go up to around 673W for some of the most demanding tests, but we never experience any blackouts throughout the test sessions.

Although not recommended, we also tried running the NiceHash miner on the test system for the whole day and it’s safe to say that the UD1000GM can handle that easily as well. We then increase the test period to a longer duration and we can see that the UD1000GM passed all the tests without any signs of failure. The temperature hovers around 48-52°C most of the time, so it’s safe to say there’s still plenty of room to maneuver there.

First impression

Design-wise, Gigabyte has kept things very simple and the ribbon cable is definitely something I would prefer more than anything else. The cable has a good length which is good for clean cable management, especially for picky eaters like me. The only concern I have with the cables is the lack of labeling on some cables, which can be confusing for newbie builders who don’t know the difference between a 4+4 pin EPS connector and a PCIe power connector 6+2 pins. .

Although the Gigabyte UD1000GM gave us no problems throughout the tests we ran, we were unable to get any information on how the new 16-pin PCIe power supply works because we didn’t have any cards graphic compatible with us. with the new standard. It is therefore something that we will have to leave in the future until we manage to get our hands on such a graphics card when it finally hits the market. However, it’s still a pretty reasonable power supply, considering it can easily handle a fairly demanding load on our Ryzen 9 5950X and GeForce RTX 3080 test system without any signs of hiccups.


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