Efficiency
Efficiency is defined by the power output divided by the power input and is usually expressed as a percentage. If a PSU were a 100% efficient (which none are) 750 watts of AC power going in would result in 750 watts of DC power coming out (with no waste heat to dissipate). In the real world there are always inefficiencies and power is lost in the form of heat during the conversion process. Newer revisions to the ATX12V Power Supply Design Guide V 2.2 have continued to increase the efficiency recommendations for PC switching mode power supplies and now lists both required and recommended minimum efficiencies.
We measured the AC power input to the PRIME Titanium Series PSUs with an Extech power analyzer while the total DC load was found by adding all the individual +3.3V, +5V, +12V, -12V and +5VSB loads together.
The overall efficiency of the PRIME Titanium Series power supplies continues to be excellent and easily meets the criteria for 80 Plus Titanium certification, even while operating on 120 VAC and at elevated temperatures. Once again, the results matched up very closely between three different units.
80 Plus Program
Note: Tests conducted at room temperature (25°C)
I know what my next power
I know what my next power supply will be!
Love Seasonic
My only regret is that I may
My only regret is that I may never own one of these, because my present PSU (1kw Seasonic KM3 gold) is taking too long to die.
Has Seasonic got their coil
Has Seasonic got their coil whine situation sorted out yet? I think I’ve had 1 out of 6 Seasonic X and Platinum series units that didn’t have an unacceptable level of noise (what the hell is the point of quiet fans and passive operation if the circuitry is squealing like a pig with its nuts in a vice?), so I’ve been using SuperFlower based PSUs over the last year or so.
The SuperFlower Leadex plugs/sockets are also 100x better than Seasonic’s death grip ones which always feel like they’re taking excessive force to insert in my experience.
Not sure, but I’ve had the
Not sure, but I’ve had the same problems. I learned that it’s better to buy Corsair with Seasonic as the key, because then you can at least do an advanced exchange. It gets old having to wait for a replacement after three times.
Key=oem
Key=oem
I have not experienced any
I have not experienced any high frequency whine from any of the units I have tested – dead silent.
And no catsup-and-mustard
And no catsup-and-mustard coloring at the end of those beautiful cables! Awesome!
I picked up one of the 750W
I picked up one of the 750W models to replace a 5 year old Seasonic X (which was great). Have been extremely satisfied with these PSUs and i recommend them to everyone. Keep up the great reviews guys!
I just built a new machine
I just built a new machine with an X850 Gold. No regrets buying it but the primes look really nice too.
I dont know why they didnt go with a Sanyo Denki fan.
“Weaknesses :
• Close
“Weaknesses :
• Close spacing of connectors on front panel can make disconnecting cables a little difficult for people with large fingers”
Seems like clutching at straws 🙂
Maybe sometimes it OK to say “This product is actually perfect”
But how does it compare to
But how does it compare to other PSUs?
Theyre among the best ATX
Theyre among the best ATX PSUs you can get.
Excellent review as always, I
Excellent review as always, I just bought the PRIME 850 W Titanium.
However you may want to update your review as Seasonic have now raise their industry leading warranty to 12 years (from 10 years).
I found out about it on Toms Hardware.
http://www.tomshardware.com/news/seasonic-prime-12-year-warranty,33791.html
http://seasonic.com/prime/
Keep up the great work.
Should I still buy this in 2022???