The MSI MPG 1000G PCIe 5 is a 1000-watt power supply from MSI. It is compatible with the ATX 3.0 standard and offers a PCIe 5 connector with 600 watts of power. This 80 Plus Gold-certified power supply is also very handsome, but why make a power supply so pretty when it’s hidden away? Let’s at least see what it’s got up its sleeve, and what it’s worth, in this comprehensive review.
Meticulous design
With MSI, if the packaging is meticulous, so too is the power supply. However, I find it somewhat regrettable that the power supply is wrapped in plastic film, especially as it’s neatly sandwiched between two foams, and the plastic film in question doesn’t give the desired impression of quality.
The pack also includes a small cable pouch. MSI is inspired by what its competitor NZXT offers, notably on the C1000 Gold, by supplying a small cable pouch in synthetic fabric. It’s a nice touch, I think, and avoids the ugly plastic pockets, at least here.
The power supply itself is well designed, and while it’s a block of metal with electrical circuits inside, the exterior is somewhat original. The brand logo with the traditional dragon is present, as well as the words “MPG”, the product range. At MSI, there are three main ranges:
- MAG
- MEG
- MPG
The underside of the MSI MPG A1000G is also well designed, with a small hint of grey on one side, which is certainly aesthetically pleasing, but we won’t see it. The fan, on the other hand, is clearly visible, revealing the printed circuit boards in the power supply, as well as the various capacitors. This is quite original, as the capacitors are not aesthetically pleasing, whereas on the outside, MSI has worked hard on the subject.
On the back of the PSU, you’ll find the ON/OFF button, as well as the port for the mains cable, but also a button to activate if you want to switch off the fan, which I don’t recommend.
On the other side, you’ll find all the connectivity, with the ATX 3.0 port delivering up to 600 watts, which, alone here on a 1000-watt power supply, isn’t shocking. As for the rest, there are four CPU / PCIe outputs, four STATA / MOLEX outputs and the motherboard outputs. The cables supplied are very classic, no braided cables here as on the Be Quiet! Dark Power Pro 13.
MSI MPG A1000G PCIe5 specifications
| Model | MSI MPG A1000G PCIe5 |
| Continuous power (W) | 1000 W |
| ATX 12V | Version 3.0 |
| Software | No |
| Certification | 80 Plus Gold |
| Voltage | 100 – 240 V |
| Frequency | 50 – 60 Hz |
| Fan size | 135 mm |
Very convincing performance
To test performance, I put the best I had into this configuration. To accommodate this, I used the latest case from a competing brand, the NZXT H7 Flow RGB. Here’s the complete configuration on the bottom:
- Processor: Intel Core i9 14900K
- RAM: 4 x 16 GB Corsair Dominator Platinium 6400 MHz
- Motherboard: NZXT N7 Z790
- Watercooling: NZXT Kraken 360 RGB
- Graphics card: Nvidia GeForce RTX 4080 Super
- SSD: Lexar NM790 + Crucial T705
- Case: NZXT H7 Flow RGB (2024)
With this solid configuration and generous power supply, it’s possible to overclock components without any worries, starting with the processor of course, but also the graphics card. However, if you want quality overclocking, you’ll need a motherboard that supports it, as this is essential for the stability of your configuration. The MSI Z790 Ace Max is ideal for this.
A quick note on the 80 Plus Gold standard, it’s the third-best standard in terms of performance. It offers good performance, but it’s not the best you can find on the market, but it does the job perfectly for the vast majority of configurations.
| 20% load | 87% efficiency |
| 50% load | 90% efficiency |
| 100% load | 87% efficiency |
More precisely, here’s the reference efficiency table for all 80 Plus standards, showing that the Platinium version is very well positioned, with an ideal compromise between performance and price:
| 20% load | 50% load | 100% load | |
| 80 Plus | 80% | 80% | 80% |
| 80 Plus Bronze | 82% | 85% | 82% |
| 80 Plus Silver | 85% | 88% | 85% |
| 80 Plus Gold | 87% | 90% | 87% |
| 80 Plus Platinium | 90% | 92% | 89% |
| 80 Plus Titanium | 94% | 96% | 94% |
With a solid configuration, based on an Intel Core i9 processor and a resource-hungry graphics card, I’ve taken a rather broad view with a 1000 watt power supply, but it allows you to add a bit of everything you want in terms of RGB fans and SSDs, without having to worry about the power supply at all.
We also note that the processor heats up quite a bit, but rest assured, before the power supply really starts to warm up, your CPU will either be severely overclocked, or it will already be sweating at over 90°C. We know that Core i9s have a very unconcealed tendency to heat up.
Performance is therefore very good, but I strongly advise against turning off the fan with such a configuration. Especially if you want to get into overclocking, I’d strongly advise you not to turn off the fan on this MSI A1000G PCIe5, otherwise it will heat up. Otherwise, you can go ahead and even stick an RTX 4090 on it, which won’t cause any problems. I’ve been able to run tests under full load, and the power supply never flinched once.
MSI MPG A1000G PCIe5 : Opinion
This MSI MPG A1000G PCIe5 power supply is fully convincing in terms of performance. Although I have my doubts about the aesthetics, MSI is an interesting player in the world of power supplies. The manufacturer is gradually carving out a place for itself in PC components, with brio, and is no longer content to simply make notebooks. This is a good thing, with high-performance products.