Enermax PlatiGemini 1200w 80 PLUS Platinum ATX 3.1 and 12VO PSU Review

We spend some time checking out and testing the brilliant new PlatiGemini 1200w 80 PLUS Platinum ATX 3.1 and 12VO power supply from Enermax.

Published
Manufacturer: Enermax (EGN1200P)
5 minutes & 41 seconds read time
TweakTown's Rating: 99%
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The Bottom Line

Enermax's PlatiGemini 1200w ATX 3.1 and 12VO PSU is an extremely solid powerhouse. It operates at 80 PLUS Titanium efficiency while only being rated for 80 PLUS Platinum. Well done, Enermax!

Pros

  • + Individually sleeved cables with cable combs
  • + Sleek black and chrome accents and Dust Free technology
  • + 80 PLUS Platinum rated and Dual 12V solution
  • + 10-year warranty and high build quality
  • + Great price-to-performance ratio

Cons

  • - None

Should you buy it?

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Introduction, Specifications, and Pricing

Enermax has sent over its new PSU, which boasts ATX 3.1 compliance and is 12VO compliant; I give you the PlatiGemini 1200w. MSRP pricing is set at $249.99. However, it's currently on Amazon for sale for $229.99. Having ATX 3.1 and 12VO is a gamble, albeit not as risky as doing a standalone 12VO PSU. What Enermax has created here is that, however, it's rated at 80 PLUS Platinum, so it has to be decent.

Why don't we take the PlatiGemini 1200w ATX 3.1 and 12VO PSU out for a spin and see what we think?

Buy at Amazon

Enermax PlatiGemini 1200w 80 PLUS Platinum ATX 3.1 and 12VO PSU

TodayYesterday7 days ago30 days ago
$209.99$209.99-
* Prices last scanned on 7/23/2024 at 12:22 am CDT - prices may not be accurate, click links above for the latest price. We may earn an affiliate commission.

Packaging

Enermax PlatiGemini 1200w 80 PLUS Platinum ATX 3.1 and 12VO PSU Review 1

The outside packaging is slightly bigger, which is familiar to the D.F. Revolution we just looked at.

Enermax PlatiGemini 1200w 80 PLUS Platinum ATX 3.1 and 12VO PSU Review 2

The white sleeve shows specifications, cable information, and dust-free technology.

Enermax PlatiGemini 1200w 80 PLUS Platinum ATX 3.1 and 12VO PSU Review 3

Cracking open the packaging reveals a user manual and some black high-density foam to protect the PSU.

Enermax PlatiGemini 1200w 80 PLUS Platinum ATX 3.1 and 12VO PSU Review 4

The black high-density foam encases the entire PSU, thus protecting it fully during shipping.

Enermax PlatiGemini 1200w 80 PLUS Platinum ATX 3.1 and 12VO PSU Review 5

The black cable pouch is branded with the Enermax logo and name. Having all the cables in a bag is a nice touch, and keeping unneeded wires neat is handy. You never know when you will need an additional cable.

Enermax PlatiGemini 1200w 80 PLUS Platinum ATX 3.1 and 12VO PSU Review 6

The PlatiGemini 1200w comes in its black pouch and is branded the same as the cable pouch.

Enermax PlatiGemini 1200w 80 PLUS Platinum ATX 3.1 and 12VO PSU Review 7

All the cabling is laid out; every cable is individually sleeved with cable combs, a PSU jumper, and mounting screws. Everything here feels very premium and has great quality standards.

Enermax PlatiGemini 1200w 80 PLUS Platinum ATX 3.1 and 12VO PSU Review 8

A close-up of the 12VO connector. Interestingly enough, on the PSU side, it plugs into the same header as the 24-pin, albeit with a smaller 14-pin connection.

Outside the Enermax PlatiGemini 1200w Platinum ATX 3.1 and 12VO PSU

Enermax PlatiGemini 1200w 80 PLUS Platinum ATX 3.1 and 12VO PSU Review 9

Looking at the PlatiGemini 1200w itself is a sight to behold. If Enermax does one thing really right, it certainly is its PSUs. They are complete with a metal grille and a matte black paint job. Nice.

Enermax PlatiGemini 1200w 80 PLUS Platinum ATX 3.1 and 12VO PSU Review 10

Remember when chrome on cars was all the rage? Well, on the PlatiGemini, it sure fits well!

Enermax PlatiGemini 1200w 80 PLUS Platinum ATX 3.1 and 12VO PSU Review 11

The cable output side is set up with 4 8-pin PCIe, 2 8-pin CPU, 6 6-pin SATA/MOLEX, and 14-pin and 18-pin motherboard inputs. If a 12VO motherboard is used, only the 14-pin connection is used.

Enermax PlatiGemini 1200w 80 PLUS Platinum ATX 3.1 and 12VO PSU Review 12

The rear of the PlatiGemini is typical, with a C13 input, power rocker switch, and D.F. Switch for dust-free operation. The fan spins backward for a few seconds, loosening up the dust from the fan blades, and then spins up normally. A honeycomb ventilation pattern helps exhaust hot air from the PSU via the 135mm fan.

Enermax PlatiGemini 1200w 80 PLUS Platinum ATX 3.1 and 12VO PSU Review 13

The power specifications chart runs on a single 12-volt rail, is rated for 100 amps, and is 80 Plus Platinum certified efficient. This means that at a 50% PSU load, the PlatiGemini 1200w is at least 92% efficient. In testing, we will put a 600-watt load on the PlatiGemini 1200w, which means needing at least 552 watts to maintain the 80 Plus Platinum certification. The 12VO is also rated for 1200 watts with 100 amps.

Inside the Enermax PlatiGemini 1200w Platinum ATX 3.1 and 12VO PSU

Enermax PlatiGemini 1200w 80 PLUS Platinum ATX 3.1 and 12VO PSU Review 14

Zeta Group makes the fan used in the PlatiGemini 1200w ATX 3.1/12VO PSU. This fan runs on 12V with .45A. This 135mm fan is a double ball bearing rated at 1800 RPM plus or minus 10%. It's too bad it's not an Enermax fan there, as I would have liked, but from what I can find, this fan is pretty decent.

Enermax PlatiGemini 1200w 80 PLUS Platinum ATX 3.1 and 12VO PSU Review 15

The PlatiGemini 1200w ATX 3.1 PSU internals are very compact for such a powerful PSU. The OEM manufacturer of this particular layout is RSY, which has previously worked with Seasonic and SuperFlower, which should indicate excellent quality.

Enermax PlatiGemini 1200w 80 PLUS Platinum ATX 3.1 and 12VO PSU Review 16

The two large capacitors are from Nippon Chemi-Con, which is 100% Japanese and known for being one of the best in the business. Each large capacitor is rated for 560uF or 1320 for both and can handle up to 105C in terms of maximum operating temperature.

Enermax PlatiGemini 1200w 80 PLUS Platinum ATX 3.1 and 12VO PSU Review 17

The 5VUSB section of the PlatiGemini 1200w is neatly tucked away with the board inputs in the back.

Enermax PlatiGemini 1200w 80 PLUS Platinum ATX 3.1 and 12VO PSU Review 18

The main transformer is neatly tucked away just by the main two capacitors.

Enermax PlatiGemini 1200w 80 PLUS Platinum ATX 3.1 and 12VO PSU Review 19

Here is the massive PFC, Power Factor Correction, which raises the power factor to reduce harmonic distortion and increase efficiency. Now, let's put the PlatiGemini 1200w PSU in the test system and test its efficiency.

Test System, Installation, and Finished Product

  • Motherboard: B650 AORUS Elite AX (AMD B650) - Buy from Amazon
  • CPU: AMD Ryzen 9 7950X - Buy from Amazon
  • Cooler: ARCTIC Liquid Freezer II 360 - Buy from Amazon
  • Memory: Patriot Viper Venom 32GB DDR5 5600 RGB - Buy from Amazon
  • Graphics Card: NVIDIA RTX 3090 Founders Edition - Buy from Amazon
  • Storage: Corsair MP600 PRO XT Gen4 PCIe x4 NVMe M.2 SSD - Buy from Amazon
  • Case: Streacom BC1 Open BenchTable
  • Power Supply: Enermax PlatiGemini 1200w Platinum ATX 3.1 and 12VO PSU - Buy from Amazon
  • OS: Microsoft Windows 11 Pro 64-bit Build 22621 - Buy from Amazon
  • Software: AIDA64 Engineer v7.20.6800, CPU-z 2.09.0 x64. GPU-Z 2.59.0, and HWiNFO64 v8.02-5440

Final Thoughts

For this review, I will be using an AMD Ryzen 9 7950X instead of the Ryzen 7 7700X, mainly due to the increased wattage needed to run 16 cores with 32 threads that are required for high-power PSU reviews as well as making a dedicated testing system strictly for PSUs. I may change in the future as I streamline PSU testing for TweakTown. The Ryzen 9 7950X is set to 1.26v for vcore to keep the temperatures in check. However, the 16-core CPU could keep a 5.1 GHz boost clock for most of the test period. The AMD Ryzen 9 7950X wattage ran up to about 169 watts with the Radeon iGPU enabled. The AM5 motherboard used here is a B650 AORUS Elite A.X. and for RAM 32GB of Dominator Platinum DDR5-7200 from Corsair.

An NVIDIA RTX 3090 FE was power limited at 114% power limit via NVIDIA's app. The NVIDIA RTX 3090 FE drew around 391 watts on average, as it should, but was able to boost to past 2GHz core speed. The motherboard, the B650 AORUS Elite A.X., as well as the three 120mm AIO fans, and the AIO pump itself, drew approximately 45 watts total, which was measured from pins 24 (ground) and 11 (+12V1) using a digital multimeter. The power drawn from the wall was measured with a Killawatt P3 digital electrical usage monitor, which read 600 watts during the duration of the testing.

Enermax PlatiGemini 1200w 80 PLUS Platinum ATX 3.1 and 12VO PSU Review 20

The total wattage reported from HWiNFO64 was 521 watts drawn between the CPU and GPU, then adding about 45 watts from the motherboard and the three 120mm fans on the AIO. Doing some math, 566 divided into 600 makes 94.33% efficiency at a 50% PSU load, PlatiGemini 1200w model, which actually passes the 80 Plus Titanium certification; excellent job, Enermax. Surprisingly enough, the 135mm fan was not audible at all compared to the rest of the system fans in the test system; however, the fan has a zero spin-up profile until a 60% PSU load, so there was no reason to be concerned.

This testing was done for over 12 hours by running the Aida 64 Engineer's System Stability Test. Other monitoring software used was HWiNFO64 v8.02-5440, TechPowerUp GPU-Z v2.59.0, CPU-Z 2.0.9.0.x64, and MSI Afterburner v4.6.4.16255.

What do I think about the PlatiGemini 1200w ATX 3.1 and 12VO PSU? It's an excellent PSU for anyone who wants to future-proof their computer with a power supply that can do both power standards. Everything about the PlatiGemini 1200w screams quality and attention to detail, down to the black individually sleeved cabling with cable combs and the use of premium components. Unfortunately, I could not acquire a 12V0 motherboard in time for this review, so not all aspects of this superb PSU could be tested.

If we look at pricing, Enermax has priced the PlatiGemini 1200w very accordingly at $249.99, which is currently on Amazon for $229.99 at the very time of writing this review. Searching the competition's 12VO PSUs, I found that they could be more present, at least from what I saw or lack thereof.

Photo of product for sale

Performance

99%

Quality

99%

Features

99%

Value

99%

Overall

99%

The Bottom Line

Enermax's PlatiGemini 1200w ATX 3.1 and 12VO PSU is an extremely solid powerhouse. It operates at 80 PLUS Titanium efficiency while only being rated for 80 PLUS Platinum. Well done, Enermax!

TweakTown award
99%

Enermax PlatiGemini 1200w 80 PLUS Platinum ATX 3.1 and 12VO PSU

TodayYesterday7 days ago30 days ago
$209.99$209.99-
* Prices last scanned on 7/23/2024 at 12:22 am CDT - prices may not be accurate, click links above for the latest price. We may earn an affiliate commission.

Ryan joined TweakTown in 2022, but that doesn’t mean he hasn’t been around the block a time or two. He has always been a gamer through and through, and building PCs started when he took apart his family’s 486 DX2-based PC. He is into everything PC but enjoys building, gaming, and water cooling.

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