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The Best PSU for your PC

Updated: Dec 27, 2020


Seasonic is one of the most trusted power supply manufacturers. In fact, they are arguably one of the first PSU manufacturers for PC. It is said they developed the PSU for the first IBM PCs. Since then they have only grown stronger with extensive R&D into PSUs for both industrial and consumers.

This Seasonic Prime TX-750 is the result of their experience due to their history and years of R&D into manufacturing consumer power supplies. Prime TX models stand for their top of the line 80-Plus Titanium Rated PSUs, they come in 650W, 750W, 850W, and 1000W flavors.


Packaging and Details

Seasonic has packaged this PSU with a reflective black and silver finish to make sure it is evident from the start that this is their most premium offering. At the front, you find the naming in big bold letters, the large 80 Plus Titanium rating badge, and the proudly printed industry-leading 12 years of warranty.

At the top of the box, we find that this Titanium series has won the major European Hardware Awards for Best PSU Series in both 2017 and 2019, and as of writing this blog, they have won the same award for 2020 as well.

On the left side, we find the detailed technical specifications of this power supply along with the cables (type, quantity, connectors, and the total length) that come in the box.

At the back, we find this chart which shows us how efficient this PSU is. Most PSUs 80 Plus Platinum and below start their efficiency chart at 20% load and above, the reason for that being below 20% Load their efficiency is quite low. However, for 80 Plus Titanium Rated PSUs like this one they have to be built with high-quality components so that they even at 10% load have a minimum efficiency of 90%. Therefore if we consider an example in this PSU at 10% load i.e. 75W load there will only be a loss of 7.5W meaning it will take in a maximum of only 82.5W from the socket, which compared to any other rated power supply will be well over 100W from the socket.

This power supply is incredibly silent at low loads, thanks to the fanless mode aka the "Hybrid mode" Seasonic calls it in this PSU series. With this mode turned ON the fan will not spin and will rely on passive cooling below 40% load. After which the fan will only slowly ramp-up based on the load, and even at max load the fan noise is limited to around 20 dBA, That is in part thanks to the fans being High-Performance Fluid Dynamic Bearing (FDB) fans. Fluid Dynamic Bearing fans is one of the most reliable types of fans, therefore ensuring that these fans will last for a lifetime without any issues.

And finally, we have Seasonic’s latest design keeps the output voltage within a very tight range, achieving under 0.5% load regulation. This impressive electrical performance and stability makes this power supply an ideal choice for high-performance systems. This ensures nothing but the cleanest DC power for your expensive PC Components like your CPU, GPU, and Motherboard, Which in turn makes this series of PSUs suitable for overclocking these components to their Max.



Now opening it up we see, everything is neatly packed, quite a feet id say after it traveled all the way across the ocean from the USA to Qatar.

First, we have this zip lock bag which contains about 6 branded Velcro ties, quite a few zip ties, the mounting screws, and the Seasonic badge if you do wish to stick it to your PC case.

Then there is a pamphlet with instructions for a chance to win a $50 Steam Coupon, followed by the Quick Start Guide, and the detailed User Manual.

Next, we have the power socket cable (US-pin) and PSU self-starter bridge that can be connected to the 24-pin motherboard cable to enable the power supply to turn on even without a motherboard. The self-starter bridge is useful in custom water-cooling scenarios when someone needs to turn the PSU to give power only to the pump.

Then, we have a pouch containing all the cables that go into the PSU to connect to all your components.

  1. One 24-pin Motherboard cable

  2. Two 4+4-pin CPU cables

  3. Four 6+2-pin PCIe cables

  4. Three SATA power cables that can be connected to 10 devices

  5. Two Molex power cables that can be connected to 5 devices

  6. One Molex to SATA adapter

The PSU itself is next, it is well protected with individual styrofoam at both sides and set in a good quality velvet pouch to prevent scratches. Taking it out from the pouch one can see and feel how well built this PSU is, the casing has a premium metal feel to it while at the same time it is quite heavy in a good way making it fell that it is engineered to be as compact as possible with the best internal components. the Hybrid button switch is placed right next to power switch making it accessible outside the case enabling one to turn "Hybrid mode" on/off without opening up the PC case it is used in. "Hybrid mode" is nothing but a fanless mode that turns off the fans at low loads (less than 40% of rated wattage of PSU, for e.g. 300W for this 750W PSU). This is a useful feature in cases where you want your system to be completely silent when it is running idle or at low loads. This also helps in a bit to extend the fan's lifetime, in turn resulting having a worry-free PSU for longer, as internal fans of a PSU are usually the first part to fail. Other than this, this PSU is pretty similar in ports and switches like any other PSU, though to separate it from the rest of the pack Seasonic has put some design elements to the PSU like the aerodynamic scoops on the sides and a chrome brandishing on the fan grills. I'd say, though these design elements do functionally nothing its a nice touch, it makes the PSU look pleasing at the same time giving it a premium look. Unlike some manufacturers that are adding RGB fans and lights to PSUs which is just ridiculous for something that is hidden away in most PC cases.

In Conclusion, if you are looking for a reliable efficient PSU then you will have to look no further than this. For a more technical review of this series of PSUs then check Kit Guru's review on the 650W unit of this series.

We all know currently PSU prices are off the roof most of the time, but if you are able to get one at its original MSRP of $199 for the TX-750 then go ahead grab yourself one. Here are the links for the PSU below.

Amazon: Out of stock

You can also check out my unboxing video of this PSU: Best PSU



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