Question 1

How loud is the fan? My current PS is quite noisy so I'm looking for one that is as silent as possible

Accepted Answer

You can hear the fan, but it is not noisy. It is hard to describe. Perhaps a low volume hum noise, such as the one you hear with a humidifier, but at a lower volume. I actually found the noise rather relaxing. There is certainly none of that fan squeal you hear with the more annoying computer fans.

Question 2

Does this power supply include SATA cables to connect SSDs?

Accepted Answer

Yes, the SATA power connector on an SSD is the same as on a hard drive, and this PSU comes with 3 cables with 10 connectors total--two longer ones with 4 connectors, one with 2.  That said, I was rather unhappy that ALL of the SATA power connectors are perpendicular to the cables, even the connectors on the ends.  And no extender/adapter cable with a parallel connector is included, which means that, potentially, one has to buy an extra item that really should come with the PSU.  Why include a floppy drive power cable instead, when no one uses floppies any more? Surely that is less useful to include than the other item would be?

Question 3

Hi, I have the Seasonic M12II-620 Bronze PSU and am thinking of upgrading to this one. Does the SS-650KM use the same exact modular connectors as the M12II-620? Meaning would I just be able to swap the PSU and plug in all the connectors from the M12II-620 I already have? I'd rather not have to dig in my machine and unplug all my components and then plug them back in if I don't have to. Thanks.

Accepted Answer

I have no idea regarding your application, however when I got the 650x I wanted to use it to replace my 750x and found the motherboard cable was different. You'll find the standard pci-e cables, sata and molex cables are OK. I'd count on swapping the motherboard board cables to play it safe.  A good place to research power supplies is jonnyguru.

Question 4

Hi, I am planning to move to another country that uses 220V AC for a year. Would it be possible to get an AC for 220V as well?

Accepted Answer

Young-

This power supply has "Active PFC" or Active Power Factor Correction which, in a nutshell, means it'll adjust itself automatically to whatever input AC voltage you're giving it. Many of the newer quality "switch mode power supplies (SMPS)" will have this feature. When a power supply does PFC then you no longer need that Red 120/220 switch near the PC power connector. The power supply can do that work itself because it can automatically detect the input power voltage and use PWM (pulse width modulation) logic circuit to adjust the output DC voltages appropriately.

BTW this is good power supply. If you're overclocking and this power supply fits your power goals it'd be a winner to go with. I've not had and coil wine with this one and the PWM fan is very quite when it needs to switch on.

Question 5

Will this PSU fit in a Silverstone Temjin TJ08-E case? thanks

Accepted Answer

Hi Matthew...I don't know for sure but I cannot imagine why not...it's a standard form factor PSU, and the Temjin is an extraordinary case and quite flexible...one of the top 3 mini-ATX cases, along with Antec mini-P180 (out of production but available via Puget System) and Fractal Design Define Mini, which would be my choice currently (see AnandTech review).

I'd link you to Temjin review sites but Newegg won't allow it...there are 3 good articles on Anandtech, Silent PC Review and Puget Systems (under hardware articles)

Great PSU choice by the way.

Question 6

Anybody having issues with SeaSonic X650 / Windows 8.1 and desktop not going into "sleep" mode?

Accepted Answer

Herro Mike! No, I've not encountered this issue. This PSU sleeps and wakes up fine in Win 8.1. However! It IS common for solid state drives to have issues with sleep and hibernation in Win OS. Hope that helps.

Question 7

Can this unit be mounted in a case where the power supply mounts to the top of the case instead of the bottom ?  Seems like you would have to mount it upside down with fan on bottom.

Accepted Answer

A typical case will have mounting points to allow either orientation of the power supply. It doesn't matter whether it mounts on the top or the bottom.

Question 8

What is the height on this product? I'm not sure which way to read it

Accepted Answer

The height is the shortest measurement of the bunch

Question 9

Will this fit in a Bitfenix prodigy for ITX build?

Accepted Answer

I haven't personally added this PSU into that case, but when looking up the case online it says the PSU size support is ATX. This review of the case suggests a 140mm PSU fan:

Okay, so Newegg wont let me post but you can find the Anandtech review for the case and go to "Assembling the BitFenix Prodigy"

this review of the PSU says the fan is 120mm and width of the PSU is 150mm:

look for the pcper website's review and go to "A Detailed Look"

I'm not sure, but based on this I think it would fit.

Question 10

What's the length of the 8-pin CPU cable (also known as the 8-pin power cable)?

Accepted Answer

~20" (I'm not takin' it out of the box to find out).  Plenty of length for my rack mount (large) case.  It includes a single cable with 2 8-pin connectors at the end.  So, if you're mounting 2 GPUs or have 1 that requires a lot of power, your set.

Questions & Answers