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Item#: N82E16817151106

SeaSonic M12II 650 SS-650AM 650W ATX12V / EPS12V SLI Ready 80 PLUS BRONZE Certified Modular Active PFC Semi-modular Power Supply

  • ATX12V / EPS12V
  • Modular
  • 80 PLUS BRONZE Certified
  • 100 - 240 V
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Seasonic M12II Bronze Series has been the ever-popular power supply series of the semi modular category. Now Seasonic extends the semi-modular series by introducing M12II Bronze 650/750/850 to provide consumers a larger selection in the entry level 80PLUS Bronze certified category.

The M12II Bronze new models have built in a full protection feature including OCP, OPP, OTP, OVP, SCP & UVP and meet worldwide safety and environmental standards. The all-new M12II-650/750/850 units are the new leaders in the 80 PLUS Bronze category and another great addition to the Seasonic Retail power supply family.

 

  • newegg 80 PLUS Bronze Certified The M12II Bronze Series achieves the 80 PLUS Bronze standard of at least 82%, 85% and 82% efficiency under 20%, 50% and 100% operating loads respectively. Combined with Active Power Factor correction (Active PFC), the M12II Bronze reduces energy waste, boosts power efficiency and more importantly, helps the users to save energy and reduce electricity bill.
  • newegg Ample +12V Outputs The SeaSonic M12II 650 SS-650AM power supply delivers 650W of continuous output, with single, high-power +12V single rail to ensure the maximum provision of 12V power to CPUs and GPUs. DC to DC Converter Design ensures superior dynamic response & greater system stability, while Active Power Factor Correction [99% PF Typical] reduces line loss and power distortion.
  • newegg Japanese Brand Capacitors (105°C) The PSU utilizes highly reliable Japanese brand capacitors for exceptional stability and product lifespan.
  • newegg Silent Cooling The 12cm ball bearing fan provides superior cooling performance to dissipate heat in the power supply enclosure while running whisper-quiet. Intelligent thermal control balances noise and cooling. Soft-mount rubber cushions reduce fan rotation and vibration noise. Plus, the universal ventilation (honeycomb structure) minimizes airflow resistance for maximum cooling efficiency.
  • newegg NVIDIA SLI Certified This PSU has gone through a series of rigorous NVIDIA SLI certification tests for maximum system stability when building NVIDIA SLI PCs.
  • newegg Detachable Modular Cables Semi-modular cable design helps reduce cable clutter thus resulting in improved internal airflow. Easy Swap connectors allow for easy, quick and safe unplugging.

Learn more about the SeaSonic USA SS-650AM

Model

Brand
SeaSonic
Model
SS-650AM
Series
M12II 650

Spec

Type
ATX12V / EPS12V
Maximum Power
650W
Fans
1
PFC
Active
Main Connector
20+4Pin
+12V Rails
Single
PCI-Express Connector
4 x 6+2-Pin
SATA Power Connector
8
SLI
SLI Ready
CrossFire
No
Modular
Modular
Efficiency
82%
Energy-Efficient
80 PLUS BRONZE Certified
Over Voltage Protection
Yes
Input Voltage
100 - 240 V
Output
+3.3V@25A, +5V@25A, +12V@53A, -12V@0.5A, +5VSB@3A
Dimensions
6.30" x 5.91" x 3.39"
Weight
7 lbs.

Features

Connectors
1 x 20 / 24P Main Power
1 x EPS12V / ATX12V (8P / 4P)
1 x EPS 12V (8P)
4 x PCI-E (6P / 8P)
8 x SATA
5 x Peripheral (4P)
2 X FDD (4P)
Features
DC to DC Converter Design

High Reliable 105? Japanese Brand Capacitors

Ample +12V Outputs

Active Power Factor Correction [99% PF Typical]

Smart & Silent Fan Control [S2FC]

12cm Ball Bearing Cooling Fan

Soft-Mount Rubber Cushions

Multi-GPU Technologies Supported

Detachable Modular Cables

Easy Swap Connectors

Universal Ventilation [Honeycomb Structure]

Quick Info

Warranty

  • Limited Warranty period (parts): 5 years
  • Limited Warranty period (labor): 5 years


Customer Reviews of the SeaSonic USA SS-650AM

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  • Bensam123
  • 4/26/2013 11:44:08 PM
  • Tech Level: High
  • Ownership: less than 1 day
  • Verified Owner

4 out of 5 eggsRead if you like Silent

Pros: -DC-to-DC conversion, huge fan of this... Love the idea and how Seasonic executed this.
-Quality - Seasonic seems to deliver high quality components even if their website and customer service are shotty
-Modular
-Good price

Cons: -Loud

Alright, so I had this in my computer for all of 15 minutes before finding out what a couple of other reviewers were talking about, I'm surprised this isn't widespread. The computer was silent upon booting, so much so that I was impressed. I right away tried stressing it with Prime95 and furmark. I don't have an extreme system, a AMD 8350 and a AMD 7870 for a graphics card. I understand this powersupply ramps up when it goes under load... that is a bit of a understatement.

Within about a minute of starting those tests it went from near silent to jet engine loud. The rest of the components in my system were running cool as always... and quiet as I have custom fan speeds setup and this just blew everything away. It was pushing and sucking more air then I think all the other fans in my system combined were doing. It's not just loud, it's unberably loud. Louder then all my other fans when I ramped them up to 100% which they're never at.

Okay I thought, this is a simulated load and wouldn't be representative of normal computer use. So I removed the load (p95 and furmark) and waited for the fan to spin down... and waited... and waited. It took about 10 minutes before the fan returned to a semi-normal level. Waaaay too long as all my other fans spun down after the heat and load level were gone in about 15 seconds.

The funny thing is, it never returned to it's quiet state even after the load was completely gone... I tried power cycling the computer, that did nothing. I tried removing the power and plugging it back in, that also did nothing... It turns out I had to leave the computer off for around 15 minutes before the fan would reset to it's quiet state, regardless of load and heat levels. This was very aggrivating...

But I persisted. I then fired up the computer in it's quiet state and left it like that without touching it. Within about five minutes the fan spun up to the 'normal' level it was after I tried p95 and furmark earlier. Alright I thought... Maybe this is just normal and it is indeed tolerable...

So I fired up Guildwars 2 to simulate a normal load and within another five minutes it was spinning blender fast and with the noise to boot, even though the load wasn't all that intense. My CPU was running at about 40% load and my graphics card at 100%, but not with the same draw.

So, it went back in the box.

Other Thoughts: It's really a shame, I was actually pretty stoked to get this PSU as my OCZ 500w modular has been slowly giving me problems.

It sounds great on paper and I'm sure it performs up to par and I believe it, that's what makes this so hard. After picking through all the PSUs and coming across Seasonic I thought I found the best at everything except customer service which I really don't mind. The noise really is killer.

I'm surprised more of these reviews don't mention it, but all I can imagine is either they never actually put the PSU under load, they wrote them before they played some games, or they don't play games at all.

I'm sure other games would also yield similar results, especially Battlefield 3 which is quite popular. The fan really is terrible.

I would buy a different Seasonic model, but I'm not sure if this persists through all their models or just this particular series. I'm guessing they use the same fan speed control algorithm in all their PSUs, but they don't list which PSUs use what (most manufacturers are vague on this which is a shame).

Other reviews don't seem to mention this so it's quite hard to gauge whether or not other Seasonic PSUs have similar noise issues, which is also a shame. All you need to do to duplicate my results is run prime 95 for five minutes or so. My system isn't even OC'd... yet, which I'm sure would make these noise issues worse.

There really should be a chart on their website that shows fan speed at certain load levels. More so then that, the fan in PSUs should be based off temperature, not load. If it's frigid cold and the PSU is cold, there is no reason to run the fan at ultra high RPMs even if it is under load. I don't understand why PSU manufacturers are using load instead of temperature for their algorithms (Seasonic isn't the only one). It completely ruins a system builders ability to maintain a quiet system by venting heat through other means (like case fans).

If the case is cool, then once again the PSU fan shouldn't spin like the world is on fire.

I guess I'm going to dig through some more reviews and maybe take a look at Seasonics older M12 series. I'm guessing if they don't have a variable control and simply have a quiet fan that it'll be perfect (the 620w may be like this).

Otherwise I'll be going with Corsair. That was the choice I made, it was between Corsiar and Seasonic, and Seasonic won with it's epic build quality and DC-DC conversion. It's too bad they lost to decibels.

Did you find this review helpful? Yes No

  • Mr Newegg
  • 4/26/2013 9:31:36 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsGreat price, but has cable flaw

Pros: Cost: $74.99 before a $15 MIR.

High quality.

Modular

Bronze rated.

650w.

Looks appealing.

Cons: The 8 pin connector is really short. Need to buy an extension for proper cable management. It sadly has to go over the motherboard in the front. The rest of the cables seem fine.

Other Thoughts: Got it for a great price and it's a known high quality PSU, plus it's modular! Was very happy to grab this PSU and deal. However, I became sad when I realized how short the mobo 8-pin cable is so short. Requires an extension cable for behind motherboard cabling.

Did you find this review helpful? Yes No

  • Seaquest
  • 4/24/2013 5:56:31 PM
  • Tech Level: Somewhat High
  • Ownership: less than 1 day
  • Verified Owner

5 out of 5 eggsGreat PSU

Pros: Quality PSU from Seasonic. Semi-modular for clean setup. All the power I need and runs quiet.

Cons: Cables are a little short if you run your cables through gromets for cable management.

But they are long enough for me cuz my case doesn't have good cable management.

Other Thoughts: I am trying to do my rebate, where is the EAN code?

I see a serial number on one side and I see a UPC-like barcode on a large orange sticker with the specs of the power supply.

Did you find this review helpful? Yes No

  • WeeJeeBoard
  • 3/8/2013 5:57:44 PM
  • Tech Level: Average
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggs2013 Build

Pros: its a PSU.. does what its made to do.. runs quiet.. and does not look half bad ohh its also modular

Cons: well the wires are very stiff took about 30 min to break them in to the point of being able to do my cable management.. and some of the wires that come with it are kinda short.. not a PSU for large cases.. had to dock one egg for this

Other Thoughts: still a great PSU would recomend it to anybody..

Cooler Master CM690 II
ASRock Z77 Extreme6
Intel Core i5-3470 Ivy Bridge 3.2GHz
CORSAIR Hydro Series H80i Water Cooler
HIS IceQ Turbo Radeon HD 7850 2GB
ASUS VX238H Black 23"
Corsair Force Series GS CSSD-F128GBGS-BK 2.5" 128GB
Western Digital Scorpio Black 750GB
CORSAIR Vengeance 1600 8GB X2
ASUS 24X DVD Burner
SeaSonic M12II 650W
Arctic Silver 5

Did you find this review helpful? Yes No

  • N/A
  • 2/24/2013 5:21:37 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsQuiet

Pros: Very quiet. Works as expected.

Cons: A little difficult to maneuver around the CPU fan and somewhat bulky non-modular cabling, but I got in in fine with a little muscle.

Did you find this review helpful? Yes No

  • N/A
  • 2/17/2013 6:46:27 PM
  • Tech Level: Average
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsModular is great!

Pros: OK, so yes it is semi-modular, but you know you'll need the 24-pin and 8-pin connections that are wired to this PSU. It comes with plenty of SATA power connections, and the other cables are likely enough, too. I only needed the SATA ones for the system I built. Installed perfectly into my case.

Cons: None that I can think of.

Other Thoughts: Great if you can get this around the $100 or so price point.

1 out of 1 people found this review helpful. Did you? Yes No

  • Mac
  • 1/31/2013 7:44:49 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsVery good

Pros: -Semi-modular is nice
-Very quiet
-Plenty of connectors

Cons: -Would be nice if the cords that aren't modular were on the opposite side of the power supply (toward the back of the case). The ATX 12V 2x4 power cord will not stretch around the back of a mid-size case to accommodate nice cord management. I have to route the cable over the front of my video card, which works, but looks ugly, and could potentially get caught in the back fan.

1 out of 1 people found this review helpful. Did you? Yes No

  • Dwreckm
  • 12/18/2012 10:51:57 AM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsSo Far, So Great!

Pros: Got this unit to power my latest build, with a 3570k, 7970, 128gig SSD, 500gig hybrid, and 1TB 7200RPM drive. So far, it's doing it effeciently, quietly, and without problems. All the non-modular cables were used, and I had to add in a couple of the SATA power ones. Cables were just long enough to route through the back of my Corsair 600T case, so wiring looks nice. Also, all power wires are nicely sleeved. Overall, this unit feels solid and well built.

Cons: My one con with this PSU is the SATA power connectors. You really have to work to get them into the drives, and I ended up breaking one. Luckily, it came with enough I didn't need to scrounge up another.

Other Thoughts: PSU came with a little satchel to hold the unused power connectors, but the bag is kind of an odd material, and makes a lot of crinkling noises. Nice to have, but it almost feels like it's made out of cellophane.

2 out of 2 people found this review helpful. Did you? Yes No

  • Chris
  • 10/13/2012 12:59:05 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsPowers Everything Flawlessly

Pros: Everything about this PSU has been astounding. This is my 1st Seasonic after being a longtime Corsair user and I was impressed with the quality and the sleek looks of such a well priced PSU when I bought it.

Cons: None

Other Thoughts: Powers my system flawlessly, I'm aware I need a new GFX card. Ordering 670 soon.

ASRock Z68 Extreme3
8GB G.Skill RipJaws 1.6GHz
GTX 560 TI
Core i5 2500k
2x WD 500G

etc etc.

1 out of 3 people found this review helpful. Did you? Yes No

  • N/A
  • 9/20/2012 12:09:35 AM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsModular and ok

Pros: This PSU is super quiet and comes with a ton of cables for those that need them. My current build has a single 550 Ti but I am moving to 2 650 Ti soon and I have all the power cables I will need. Build quality seems solid

Cons: I have a taller ATX mid tower and the cables for the 24 volt and 8 volt are tucked away but they are tight. I wish there were about 3 extra inches on each cable for larger cases. The position of the extra power plugs are close together and the way you plug in seems counter intuitive.

Other Thoughts: This is my first Sea Sonic PSU, it is in a new Ivy Bridge i5 system I built for gaming. I wanted to have a clean look inside to keep cooling top notch when I play FPS games so my system does not kick up the fans as much. I don't think I would put another Sea Sonic in a tall case again.

1 out of 1 people found this review helpful. Did you? Yes No

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Buzz

A very solid PSU.

5 out of 5 eggs
Semi modular. Whisper quiet. Seasonic is as good as it gets when it comes to power supplies. I use this puppy to power my ...
— KingWhoDat 5/13/2012

Great PSU

5 out of 5 eggs
Running this bad boy to support my 2x GTX 560 video cards (in SLI) and 2600K chip. Works perfectly and the modular ...
— 1cheslch 4/3/2012


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