The MSI MEG Ai1300P PCIE5 1300W PSU Review: The ATX 3.0 Era Has Begun
by E. Fylladitakis on December 8, 2022 11:00 AM EST- Posted in
- Cases/Cooling/PSUs
- PSUs
- MSI
- PCIe 5.0
- ATX v3.0
Cold Test Results (~22°C Ambient)
For the testing of PSUs, we are using high precision electronic loads with a maximum power draw of 2700 Watts, a Rigol DS5042M 40 MHz oscilloscope, an Extech 380803 power analyzer, two high precision UNI-T UT-325 digital thermometers, an Extech HD600 SPL meter, a self-designed hotbox and various other bits and parts. For a thorough explanation of our testing methodology and more details on our equipment, please refer to our How We Test PSUs - 2014 Pipeline post.
The efficiency of the MSI MEG Ai1300P does meet the 80Plus Platinum certification requirements when it is powered from an 115 VAC source. However, when the main’s voltage is 230 VAC, the efficiency is raised by an average of 1%, which is not enough to meet the 80Plus Platinum requirements for that input voltage. The average nominal load efficiency (20% to 100% of the unit's capacity) is 92.1% with the unit powered from a 230 VAC source, and drops down to 91.3% if the unit is powered by a 115 VAC source. It is also interesting to note that its efficiency under very low loads is quite high, at above 83% for a 5% load.
The fan of the MSI MEG Ai1300P PCIE5 is thermally controlled by default, with the unit keeping it disabled until the load was over 430-440 Watts. Regardless, the internal temperature of the PSU is quite low considering the massive power output. Once the fan does start, it is very quiet at first but then speeds up very quickly as the load increases, making the Ai1300P clearly audible when the load is greater than 800 Watts.
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flyingpants265 - Wednesday, December 14, 2022 - link
The plug thing is really overblown IMO, it could have happened to anyone. The important thing is1. Did they fix it, and
2. Did they replace people's burnt computers?
The plug should fit better. Larger and longer pins means more contact area... Need better fitment and tolerances to slide in and click properly each time. Also, the sensing pins are probably unnecessary. Just have an optional 450w bios.
TheinsanegamerN - Thursday, December 8, 2022 - link
if you cant tell when its actually plugged in all the way, thats a pretty major issue.None of this is a poroblem with the 8 pin, you notice.....
NextGen_Gamer - Thursday, December 8, 2022 - link
Yeah, I have not seen a 12VHPWR cable personally yet, but from what I have read, it just doesn't seem to "snap" in quite as tight as the current 8-pin PCI-E connectors. Which means even if you know what you are doing as a PC builder, you might not get it fully inserted. I also have to wonder, with the only two GPUs shipping that use being MASSIVE 3-slot and higher than normal height, that maybe NVIDIA should have provided a right-angle connector out of the box. Since because of where the 12VHPR connector is placed, you really have to bend it as it is hitting the side panel immediately. A right-angle connector would alleviate that stress, and might have been able to be inserted fully a lot easier.tamalero - Thursday, December 8, 2022 - link
Just installed my 4090 and I can tell you that you're right. That thing just doesn't snap nor holds itself like the PCIE connectors.I had no idea if it was fully connected or not. and I was worried I would start to bend the connector from the PCB of the card as the connector is very hard to insert.
DanNeely - Friday, December 9, 2022 - link
I don't have one; but from coverage I've seen elsewhere, while the cable doesn't have a satisfying mechanical snap and audible click when inserted a strait pull and wiggle test will quickly dislodge an incompletely inserted cable without disturbing one that is in all the way. It's also recommended to plug power into the card before inserting it into the case so you've got more room to manipulate the wire and to inspect it's insertion.flyingpants265 - Wednesday, December 14, 2022 - link
Cables shouldn't be a thing anymore anyway. Apple's Mac Pro and the stadia devkit don't even use cables at all. Instead of "hiding" them, just eliminate them completely.But yeah, for 600W GPUs, you probably want a right-angle connector.
evilspoons - Thursday, December 8, 2022 - link
Yeah, if you plugged this power supply's 12VHPWR cable in halfway as well I'm sure it would melt just as easily. The root issue is it's not easy to tell if it's latched and the sense signals that detect proper connection can do so without the connector actually latching.Techten - Tuesday, December 13, 2022 - link
I have the 850 Watt version of this PSU, and I had to gently create a curve in the 12VHPWR cable to get it in the RTX 4080 using a Corsair 4000D Airflow. I took my time over 5 minutes creating a soft curve and leaving at least 2 inches out of the card with out bending. The Cable was very stiff. There was a satisfying click sound once placed in the 4080 and you could easily see that it was flush with the female adapter of the card.scottj - Thursday, December 8, 2022 - link
Not sure about the Gaming Intelligence thing, but they could at least use a modern USB connector.shabby - Saturday, December 10, 2022 - link
At least its not a usb-b port 😂