Seasonic are using a San Ace 120 9s1212f404 fan. This is a Sanyo Denki unit which incorporates dual ball bearings.
The Platinum 1000W power supply is formed around the X Series design. The soldering quality throughout is excellent and the layout is clean with several row of thin heatsinks across the PCB. The +3.3V and +5V voltage regulators have been from the main PCB to a modular DC connector board which attaches to the front of the enclosure.
The design comprises two coils, two X caps, two Y caps and a MOV.
Seasonic are using Nippon Chemi Con capacitors throughout. The primary capacitors are 105c rated 420v 330uF. There is a tiny daughtercard in front of these which is home to a CM6901 PWM controller.
The secondary stage also uses Nippon Chemi Con capacitors, a mixture of solid polymer and electrolytic. They are using the highest grade components in this design which is reassuring at the cost. The VRM is controlled by a APW7159.
Seasonic Platinum 1000W Modular Power Supply Review,


















May 17, 2012
#1
Excellent unit. Seasonic are great, dont they make for XFX and a few others too?
May 17, 2012
#2
Absolutely fantastic design, they are the best imo for quality
May 18, 2012
#3
If only the very best is good enough for you, then look no further than Seasonic
When it comes to power supply. You have very good power supply and then you have Seasonic power supply. I own a X560 Gold unit powering a 2500K @ 4.7Ghz and a GTX670 @ 1.25GHz (turbo). The X560 have been tested up to 750W before failing! Over engineered you say? LOL… So a puny CPU / GPU overclock is nothing even for a lowly 560W unit. Even under load, the fan barely starts . It’s totally silent 99% of the time!
May 18, 2012
#4
[...] Seasonic Platinum 1000W Modular @ Kitguru [...]
May 19, 2012
#5
The Platinum Series features a high-tech LLC/full-bridge circuit topology with a unique integrated DC Connector Panel with an embedded Voltage Regulator Module.
May 19, 2012
#6
[...] Fenrir SiberiaBCC Hardware goes inside the NZXT Phantom 410 Mid-Tower ChassisKitGuru checks out the Seasonic Platinum 1000W Modular Power SupplyLanOC shares its thoughts on the Sapphire HD 7770 Vapor-XLegion Hardware comes back with the HIS [...]
May 20, 2012
#7
[...] PSU Cooler Master Silent Pro 850W PSU @ Rbmods LEPA B650 PSU @ Hardware Secrets Seasonic Platinum 1000W PSU @ KitGuru [...]
May 21, 2012
#8
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