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Seasonic are using a very high grade 120mm Sanyo Denki San Ace fan (9S1212F404). This fan uses dual ball bearings to enhance life span and reliability. It is constructed around 7 blades which are sculpted to reduce noise while maintaining a high level of airflow.
This supply uses only a couple of heatsinks, however with the 80 Plus Gold Efficiency rating and the large fan overhead it should be fine.
Seasonic are not skimping on the component grade in this supply. They are using high quality Japanese capacitors throughout, with the primary design using two Nippon Chemi Con caps, rated 420v 390 uF @ 105c.
The design of this unit replaces traditional wired connections with direct pin to port connections. This reduces the heat generated by the wiring which has the subsequent benefit of reducing lost power, ensuring improved voltage. The unit includes Total Power Protection (OPP), Over Voltage Protection (OVP), Over Current Protection (OCP), Short Circuit Protection (SCP), and Over Temperature Protection (OTP).
Perfect for my new system build next month – big question. no stock anywhere? maybe ill get the corsair 😉
Just sent you an email complaining. I can’t buy any of this seasonic stuff anywhere in the uK. stopp reviewing their products until they get stock on stores. all either pre-order or out of stock. useless fing company
even OCUK have them all listed as pre-order.
nice 🙂
just get the corsair, loads of stock http://www.scan.co.uk/products/850w-corsair-pro-series-gold-hx850-modular-psu-80-plus-gold-sli-crossfire-eps-12v-quiet-fan-atx-v231 cheaper too. £15.
@ Darth Digglers, the HX850 you linked is a CWT built PSU, the AX850 uses the Seasonic X series design.
opps, yeah well spotted, sorry if I misleaded anyone. both good power supplies though from corsair at a good price.
An enjoyable review. Please would it be possible in future for the high resolution photos to be taken with a macro setting on the camera, where applicable, in the interests of improving focusing and sharpness.
add my name to the list of people interested but unable to buy. Great products, no one is arguing that. but can I buy any? I wanted the 1250W weeks ago and ended up paying extra for the corsair 1200i.
Cons are wrong – there were 4 cables included with all of my X850 – 2 of them “single” PCI-E 6+2 the other 2 “dual” PCI-E 6+2 for a total of 6 connectors ALL capable of being used in 8-pin PCI-E connections.
Expensive – not compared to other GOOD Gold-rated 850 watt power supplies like the EVGA G2, but definitely more than the cheap junk that often doesn’t handle RATED capasity and might not even MEET Gold standards much less hit near Platinum.
I do with that Seasonic had continued with this model and NOT moved to a junk fancy-name “sleeve bearing” fan on their new Focus and Prime series – I won’t even LOOK at those series given the junk fan in them.