Seasonic Platinum Series 1200 W

crmaris · Jul 8, 2014

Seasonic recently added a new high-end model to their arsenal, a 1200 W unit with Platinum efficiency, extraordinary performance, semi-passive operation, and a fully modular cabling design. This PSU is one of the best we ever tested and teaches manufacturers a lesson in how to push analog circuits to their limits.

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LTUGamer · Jul 28, 2014

Far away from Super Flower, Flextronics and Delta PSUs :/

natr0n · Jul 28, 2014

Is this psu not the creme de la creme ?

avatar_raq · Jul 28, 2014

LTUGamer said:
Far away from Super Flower, Flextronics and Delta PSUs :/

Doesn't Delta usually use multiple small 12v rails? I am not sure, but if it does, then flextronics, superflower and seasonic have better designs IMO, which are preferable to me inspite of Delta's legendary build quality.

PatoRodrigues · Jul 29, 2014

I didn't even need to read this review to know it would get a great score. (No worries, crmaris. I read it anyway! Great as usual

)

The 1000W was amazing. Went to the worst places looking for that one and couldn't find here in Brazil. My 290s don't require 1200W, but damn, i want this PSU badly.

eidairaman1 · Jul 29, 2014

Cant wait till the 1050,1250 are reviewed. Also cant wait till they launch a 1600 watt unit

crmaris · Jul 29, 2014

X-1250 is next on my list..

Joe Public · Jul 29, 2014

avatar_raq said:
Doesn't Delta usually use multiple small 12v rails? I am not sure, but if it does, then flextronics, superflower and seasonic have better designs IMO, which are preferable to me inspite of Delta's legendary build quality.

They adapt the rail setup to the customer's requests. They can use split rail or single rail at their discretion. And sometimes the OCP trip point of rails are actually set higher than the label indicates. Multiple rail is not a drawback when it's done right.

crmaris · Jul 31, 2014

thing is that it can cause problems if it isn't implemented right and especially with some umber high-end VGAs that draw lots of Amps from the PSU. All this time I test PSUs I never encountered a single problem with a single rail unit (I mean melted wires etc.) on the contrary I fell into trouble (shut downs) quite many times with multi rail ones, at very high loads though.

avatar_raq · Jul 31, 2014

crmaris said:
thing is that it can cause problems if it isn't implemented right and especially with some umber high-end VGAs that draw lots of Amps from the PSU. All this time I test PSUs I never encountered a single problem with a single rail unit (I mean melted wires etc.) on the contrary I fell into trouble (shut downs) quite many times with multi rail ones, at very high loads though.

My point exactly. Besides one must know exactly which cable comes from which rail to distribute the load as evenly as possible. This is especially important in high end sli/cf configurations. Single rail PSUs, on the other hand, are simpler to setup.

eidairaman1 · Aug 1, 2014

Yet gotta be careful with arching in eveng of catastrophy. I mean .5 amps can be fatal...

Solaris17 · Aug 5, 2014

Regardless this is a fantastic PSU and a terrific review. Thanks for all the work!!

blobster21 · Aug 5, 2014

great review indeed, it was very instructive to read.

AsRock · Aug 5, 2014

Nice review.

Joe Public said:
They adapt the rail setup to the customer's requests. They can use split rail or single rail at their discretion. And sometimes the OCP trip point of rails are actually set higher than the label indicates. Multiple rail is not a drawback when it's done right.

When it's done right, how ever just get a single rail and never have to think it could be a issue.

Palladium · Aug 5, 2014

Well, personally I will be far more interested in 400-600W platinums than some overkill 1200W priced to the moon.

AsRock · Aug 5, 2014

Palladium said:
Well, personally I will be far more interested in 400-600W platinums than some overkill 1200W priced to the moon.

High price ?, not to sure about that as seen as they gotta handle such power going though them and not fry every thing you own.

eidairaman1 · Aug 6, 2014

Palladium said:
Well, personally I will be far more interested in 400-600W platinums than some overkill 1200W priced to the moon.

Try corsair. Easily 300-400 usd.

ralle_h · Nov 3, 2014

Hey everyone,

I'm very interested in the PSU mainly cause of the semi-passive mode for idle and light load, but also gonna put it into some heavy gaming load (one GTX 980 for now and maybe soon another 980 to come, combined with a overclocked 4790k with 4,8 GHz) and I'm very interested in some user experience or real world experience regarding the noise of the fan, as I am a bit confused about the noise, which was a negative point in this review.

Other reviews that I checked out recently (that tested the PSU without a hotbox and normal room temperature) reported that the fan was inaudible, even during full load of 1200W.

Can anyone confirm or negate these statements?

Frick · Nov 3, 2014

ralle_h said:
Hey eversone,

I'm very interested in the PSU mainly cause of the semi-passive mode for idle and light load, but also gonna put it into some heavy gaming load (one GTX 980 for now and maybe soon another 980 to come, combined with a overclocked 4790k with 4,8 GHz) and I'm very interested in some user experience or real world experience regarding the noise of the fan, as I am a bit confused about the noise, which was a negative point in this review.

Other reviews that I checked out recently (that tested the PSU without a hotbox and normal room temperature) reported that the fan was inaudible, even during full load of 1200W.

Can anyone confirm or negate these statements?

That will not load the PSU that much, so I'm guessing it will be pretty quiet. That CPU and one 980 will max out at below 400W.

Also, it's not everyone that can accurately test noise. Oklahomawolf at jonnyguru.com can't, because load testers are loud things.

Processor	Intel Core i5 4670K @ 4.8 GHz
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System Name	Simon
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System Name	Tiffany
Processor	Intel i7 4770K @ 4.5Ghz
Motherboard	Gigabyte Z87X-UD4H
Cooling	Corsair H100i Push-Pull
Memory	Corsair Vengeance 1600MHz 16GB
Video Card(s)	XFX R9 290 Crossfire @ 925Mhz
Storage	WD 500GB + Seagate 1 TB
Display(s)	BenQ XL2420TX 120hz
Case	Cooler Master CM690II Black & White
Audio Device(s)	Onboard
Power Supply	Cooler Master Silent Pro 1000W
Software	Windows 7

System Name	PCGOD
Processor	AMD FX 8350@ 5.0GHz
Motherboard	Asus TUF 990FX Sabertooth R2 2901 Bios
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Memory	16 GB Gskill Ripjaws X 2133 (2400 OC, 10-10-12-20-20, 1T, 1.65V)
Video Card(s)	AMD Radeon 290 Sapphire Vapor-X
Storage	Samsung 840 Pro 256GB, WD Velociraptor 1TB
Display(s)	NEC Multisync LCD 1700V (Display Port Adapter)
Case	AeroCool Xpredator Evil Blue Edition
Audio Device(s)	Creative Labs Sound Blaster ZxR
Power Supply	Seasonic 1250 XM2 Series (XP3)
Mouse	Roccat Kone XTD
Keyboard	Roccat Ryos MK Pro
Software	Windows 7 Pro 64

Seasonic Platinum Series 1200 W

crmaris

LTUGamer

natr0n

avatar_raq

PatoRodrigues

eidairaman1

The Exiled Airman

crmaris

Joe Public

crmaris

avatar_raq

eidairaman1

The Exiled Airman

Solaris17

Super Dainty Moderator

blobster21

AsRock

TPU addict

Palladium

AsRock

TPU addict

eidairaman1

The Exiled Airman

ralle_h

New Member

Frick

Fishfaced Nincompoop

System Name	"That computer next to my desk"
Processor	Intel Core i5 - 12600K
Motherboard	Asus Prime Z690-P WIFI D4
Cooling	Be Quiet Dark Rock Pro 4
Memory	16GB (2x8) Corsair Vengeance LPX PC3200
Video Card(s)	Gigabyte GTX 1070
Storage	Samsung 980 PRO M.2 NVMe 1TB + 2TB Seagate SSHD + 4TB External Seagate HDD
Display(s)	BenQ RL2755HM 27"
Case	Fractal Design Define R5 Black
Audio Device(s)	On board codec
Power Supply	Corsair RM650i
Mouse	SteelSeries Sensei Raw
Keyboard	SteelSeries Apex 350
Software	Windows 10 x64
Benchmark Scores	The scouter says it's over 9000

System Name	RogueOne
Processor	Xeon W9-3495x
Motherboard	ASUS w790E Sage SE
Cooling	SilverStone XE360-4677
Memory	128gb Gskill Zeta R5 DDR5 RDIMMs
Video Card(s)	MSI SUPRIM Liquid X 4090
Storage	1x 2TB WD SN850X \| 2x 8TB GAMMIX S70
Display(s)	49" Philips Evnia OLED (49M2C8900)
Case	Thermaltake Core P3 Pro Snow
Audio Device(s)	Moondrop S8's on schitt Gunnr
Power Supply	Seasonic Prime TX-1600
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Keyboard	Monsgeek M3 Lavender, Moondrop Luna lights
VR HMD	Quest 3
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