Seasonic"s latest budget PSU shows that you don"t always have lớn pay more lớn get more. Let"s dive in & take a close look at the M12II 750W.
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Lately we"ve been trying khổng lồ focus on mid-wattage units as they seem khổng lồ fit the needs for a majority of users who have up lớn a pair of discreet clip cards. It"s nice lớn look at the top end hardware day after day after day, but it is always nice khổng lồ go back to lớn something more for the masses. It helps keep things in perspective with what people can actually afford and need versus what they dream about and will never have a use for.
We decided to do double duty with this latest unit from Seasonic. Most of the power nguồn supplies that we have looked at from Seasonic are well towards the full enthusiast spectrum in that they are very high chất lượng power supplies that exhibit superb performance but they always come at a cost.
The M12II EVO Edition nguồn supply is meant for those who want the Seasonic quality, but don"t want the price. It gives a little on performance, but gains a ton on the price.
We"ve seen this many times before & it sometimes has bad results as too much is shaved in order to lớn save more money. Let"s kiểm tra out what the M12II-750 EVO Edition from Seasonic has to offer & if they"ve found a solid balance with price and performance or if they"ve gone too far.
Seasonic keeps things simple with a single 12V rail. It is rated for 62A or 744W. Both the 3.3V và 5V rails are rated for 25A each with a combined maximum đầu ra of 150W. The 5VSB rail is rated for 3A or 15W. Maximum combined output for the Seasonic M12II-750 is 750W.
Just as you would expect from Seasonic, the power supply is chock full of features. Protections are often the first to be slashed when cutting costs, but all protections are present including over-temperature protection. The power nguồn supply is fully modular and all cables are either fully sleeved or of the flat ribbon type. The Seasonic M12II-750 EVO Edition is rated for 80 PLUS Bronze efficiency. Finally, while Seasonic doesn"t rate the unit for 100% continuous đầu ra at 50C, they bởi rate it for it at 40C.
Seasonic lists the M12II-750 EVO Edition with an MSRP of $99.99. This makes it a very comparatively priced nguồn supply & priced right in the middle of the road. Shopping around won"t save you too much, but Provantage does have the unit in stock for $98.87 at the time of writing. Seasonic backs the M12II-750 EVO Edition with a five-year warranty.
Seasonic gives us a great look at the M12II-750 EVO Edition on the front of the box. We"re also teased with Japanese capacitors & full modularity.
Seasonic has a small picture to lớn go along with each bullet point. On the left, we find that the nguồn supply uses Japanese electrolytic capacitors, but it may contain Taiwanese solid state capacitors.
The other half of the back lets us know that the nguồn supply supports multiple GPUs, has fully modular cables & a five-year warranty.
This side gives us the protections present và connector types available, but doesn"t give us a quantity.
The other side gives us the I/O specifications, along with the quantity of connectors available.
Inside the Box
This style of packaging seems khổng lồ have become the norm for many manufacturers. It does a great job of protecting the nguồn supply.
The top of the M12II-750 EVO Edition is blank, but gives us a great shot of the semi-gloss black finish.
Since the I/O specification label wasn"t on the top, it is present on this side.
The other side just shows the M12II-750 EVO Edition logo.
All modular connectors are labeled clearly on the front of the nguồn supply.
There isn"t anything special on the back of the M12II-750 EVO Edition. Present here is the AC input & on/off rocker switch.
Included with the power nguồn supply is the AC đầu vào cord, case badge, mounting screws, warranty card và user manual.
Cabling Arrangement và A Look Inside
Cabling Arrangement
The cable summary for the M12II-750 EVO Edition looks more complicated than it really is và it also provides a near perfect selection of cables and connectors.
Some things that we don"t normally see in 750W nguồn supplies are dual EPS12V connectors and six PCI-E connectors. Both are quite welcome. After this we have both short & long SATA and Molex cables, which will help keep the clutter down quite a bit.
Rail distribution is as simple as it gets with a single 12V rail. There is no need to lớn worry about load balancing here.
A Look Inside
Inside the enclosure we find a very clean unit with plenty of passive cooling, while not over doing it so that fresh air can get clear down khổng lồ the PCB.
Multiple Nippon Chemi-Con bulk capacitors sit on the primary side of the nguồn supply.
The secondary side is littered with Nippon Chemi-con caps.
ADDA provides the active cooling for the M12II-750 EVO Edition with their AS1212UB-A70GL 120mm fan.
Test Results & Final Thoughts
Test Results
Our load tests utilize a couple of FAST ATE active load testers và a variety of other equipment such as an oscilloscope, power nguồn conditioner, temperature probe & a power nguồn consumption meter. You can read more about our standard testing approach here.
The tests performed are based around six conceivable setups that are out there & progressively load down the PSU up lớn the power nguồn supply"s limits or 1000W, whichever comes first. Since our thử nghiệm equipment"s limits are higher than that of the Seasonic M12II-750 EVO Edition 750W power supply, we can demo it to lớn the maximum.
The above tests represent typical loads that we have measured from various systems & are meant to lớn give a rough idea of where your computer might fall in line with our tests. Please keep in mind that each system is different và actual loads can vary greatly even with similar hardware.
Let"s start by taking a look at the voltages to lớn see how well this unit did during testing. Starting with the 12V rail, we see 1% regulation from start to lớn finish with a total drop of .13V. The 5V rail managed to stay within 2% of specification with a total drop of .07V from start khổng lồ finish. Moving towards the 3.3V rail, we see that regulation was within 2% of specification with a total voltage drop of .09V.
DC Output unique for the Seasonic M12II-750 EVO Edition 750W was great và well within specifications. During kiểm tra 1, we saw 10mV of noise on our scope. When we increased the loads in thử nghiệm 2, the ripple climbed lớn 13mV at a little under half. During thử nghiệm 5 under a load of 750W, the oscilloscope showed a maximum of 24mV on noise on the 12V rail.
The Seasonic M12II-750 EVO Edition 750W is rated for 80 PLUS Bronze efficiency. This means that the power supply must perform at 82%/85%/82% efficiency at 20%/50%/100% loads respectively. As you can see, the M12II-750 EVO Edition passed on our bench, & wasn"t close to failing at any point.
Final Thoughts
If there"s anything that we"ve learned from what we"ve seen today, it is that Seasonic doesn"t just make toys only the rich can afford. Seasonic is known for their chất lượng and the M12II-750 EVO Edition is designed from the ground up as a budget unit.
The M12II-750 EVO Edition exhibits the characteristics of both. Inside there are no signs of unique being cut, as the soldering is superb, and the components are just what you"d see in their higher-end power supplies.
When it comes khổng lồ performance, the M12II-750 EVO Edition outperforms many of the higher-end nguồn supplies that we"ve reviewed in the past months. Voltage regulation is superb with the 12V rail showing within 1% of specification và the other two rails showing within 2%. DC output unique is great as well, staying under 25mV at full load. The efficiency may not be on par with Platinum cấp độ power supplies, but it performs just as it should for a Bronze rated unit.
What really sweetens the deal on the M12II-750 EVO Edition is that it is cheap. At $99.99, it is right on par with a majority of 750W nguồn supplies currently on the market, most of which have shorter warranties and worse performance. Unless you absolutely have to lớn have a nguồn supply with higher efficiency, the Seasonic M12II-750 EVO Edition is going to be hard lớn beat.
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Zac O"Vadka
Zac provides professional IT support by day, but plays the role of enthusiast by night. He"s been building high-end custom computer for the nearly fifteen years và writing PC hardware reviews for the better part of a decade. Aside from computers, he also dabbles in quite a bit of trang chủ A/V equipment. Throughout the years, Zac has picked up an extensive knowledge of power circuitry và leverages this khổng lồ provide the PSU reviews. When not found testing or writing, you can often find him speeding through the winding countryside on his motorcycle.
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