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Item#: N82E16817151088

SeaSonic X Series X650 Gold ((SS-650KM Active PFC F3)) 650W ATX12V V2.3/EPS 12V V2.91 SLI Ready CrossFire Ready 80 PLUS GOLD Certified Full Modular Active PFC Power Supply New 4th Gen CPU Certified Haswell Ready

  • ATX12V V2.3/EPS 12V V2.91
  • 80 PLUS GOLD Certified
  • Sanyo Denki San Ace PWM Silent Fan
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BUY WITH CONFIDENCE
This product qualifies for the Iron Egg guarantee. We'll match any qualifying competitor's price.
BUY WITH CONFIDENCE
This product qualifies for the Iron Egg guarantee. We'll match any qualifying competitor's price.
BUY WITH CONFIDENCE
This product qualifies for the Iron Egg guarantee. We'll match any qualifying competitor's price.
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Learn more about the SeaSonic USA X650 Gold ((SS-650KM Active PFC F3))

Quick Info

Warranty

  • Limited Warranty period (parts): 7 years
  • Limited Warranty period (labor): 7 years


Customer Reviews of the SeaSonic USA X650 Gold ((SS-650KM Active PFC F3))

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  • Z300M
  • 5/24/2015 6:31:11 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggsGood so far, but...

This review is from: SeaSonic X Series X650 Gold ((SS-650KM Active PFC F3)) 650W ATX12V V2.3/EPS 12V V2.91 SLI Ready CrossFire Ready 80 PLUS GOLD Certified Full Modular Active PFC Power Supply New 4th Gen CPU Certified Haswell Ready

Pros: Modular, with a lot of connectors. Quiet. Efficient.

Cons: I wish the cables were a little longer and with a little more space between the drive connectors:

1. The PSU is mounted in the bottom of my large tower case, and the server motherboard has the 24-pin and 8-pin connectors along the top edge, just too far away for me to bring the 24-pin cable up the back of the MB mounting plate and through the adjacent cutout: I have to use an extender if I don't want to run the cable in front of /on top of the motherboard and perhaps block needed airflow.

2. The Molex and SATA connectors are just too close together to allow one to connect to each of my iStarUSA drive cages: I can use only alternate connectors.

Did you find this review helpful? Yes No

  • Jay T.
  • 5/22/2015 11:35:57 AM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

2 out of 5 eggsCoil Whine

This review is from: SeaSonic X Series X650 Gold ((SS-650KM Active PFC F3)) 650W ATX12V V2.3/EPS 12V V2.91 SLI Ready CrossFire Ready 80 PLUS GOLD Certified Full Modular Active PFC Power Supply New 4th Gen CPU Certified Haswell Ready

Pros: Great packaging, quiet fans, compact modular design, stable power.

Cons: Has had a distinct and noticeable intermittent coil whine since day one. I even went through the trouble of RMA with newegg to see if I got a bad unit but got the same results with the replacement.

Manufacturer Response:

Hi Joseph, Sorry for the inconvenience. Please note the coil whine can be an issue of the MB and or the VGA in combination with the PSU. It is best is you can activate all energy saving modes in the BIOS, this might help. Please write to me at newegg@seasoniceu.com and we can try to help resolve the issue for you. But it might not be a PSU issue.

Did you find this review helpful? Yes No

  • N/A
  • 5/17/2015 9:33:07 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsFlawless

This review is from: SeaSonic X Series X650 Gold ((SS-650KM Active PFC F3)) 650W ATX12V V2.3/EPS 12V V2.91 SLI Ready CrossFire Ready 80 PLUS GOLD Certified Full Modular Active PFC Power Supply New 4th Gen CPU Certified Haswell Ready

Pros: 0db, dead silent, high performance, great flex to the modular cables (usually modular cables are stiff), velvet bag

Cons: the velvet bag

Other Thoughts: Who bags a psu in a velvet bag? i guess the answer is seasonic. Frankly this is both the most hilariously awesome corny and lame add-on to a power supply I've ever seen. No clue what to do with it now that i have one. but it was sorta wild to pull the psu out of it in the first place. definitely a picture i emailed around a bit. Anyway now that i've wasted your time let me lay this out there

this is the best psu i've ever owned.

Did you find this review helpful? Yes No

  • N/A
  • 5/14/2015 7:20:25 AM
  • Tech Level: High
  • Ownership: less than 1 day
  • Verified Owner

2 out of 5 eggsWell, it wasn't DOA at least

This review is from: SeaSonic X Series X650 Gold ((SS-650KM Active PFC F3)) 650W ATX12V V2.3/EPS 12V V2.91 SLI Ready CrossFire Ready 80 PLUS GOLD Certified Full Modular Active PFC Power Supply New 4th Gen CPU Certified Haswell Ready

Pros: it works

Cons: - When it powers on for the first 2 minutes it makes a screeching noise that eventually fades away. It does this in normal and hybrid mode. and is completely unacceptable.
- The connectors don't click into place. they just sort of push in and don't seem fully secure. Is it plugged in or not? I dunno, let's turn it on and see...

Other Thoughts: Gonna RMA and go with a Corsair.

Manufacturer Response:

Hi Brodie, I am sorry to read of your issue and I hope the RMA process works out well for you. If you have any questions or concerns, please let me know at newegg@seasonicus.com Thank You

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

  • Computron
  • 5/12/2015 5:37:40 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

2 out of 5 eggsCoil Whine (Buzzing Noise)

This review is from: SeaSonic X Series X650 Gold ((SS-650KM Active PFC F3)) 650W ATX12V V2.3/EPS 12V V2.91 SLI Ready CrossFire Ready 80 PLUS GOLD Certified Full Modular Active PFC Power Supply New 4th Gen CPU Certified Haswell Ready

Pros: Nice packaging, decent modular design. Power delivered is stable.

Cons: Coil whine noise is produced during random activities (mostly gaming), the buzzing sound is almost unbearable. For the price of this PSU you'd expect more.

Other Thoughts: The manufacturer likes to pass blame to your other components but this is unlikely the root cause for noise problems.

It was a hassle, but I finally got around to swapping out this PSU for my older Enermax PSU and as expected, NO NOISE PROBLEMS now. I will avoid buying Seasonic in the future.

Manufacturer Response:

Hi Travis, I am sorry to read of your issue. Please e-mail to me at newegg@seasonicus.com with your system configuration and the type of VGA used and we will try to sort this out for you. Thank you.

Did you find this review helpful? Yes No

  • chidino
  • 5/12/2015 2:24:44 AM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

3 out of 5 eggsWonderful, until...

This review is from: SeaSonic X Series X650 Gold ((SS-650KM Active PFC F3)) 650W ATX12V V2.3/EPS 12V V2.91 SLI Ready CrossFire Ready 80 PLUS GOLD Certified Full Modular Active PFC Power Supply New 4th Gen CPU Certified Haswell Ready

Pros: Fantastic modular design, sooooo quiet (because of the efficiency that leads to the fan not having to run -- and the Nippon Seiki fan is so quiet, you don't even hear that when it DOES have to run); packaging, quality manufacture... just great.

Cons: Unfortunately, mine failed.

Other Thoughts: Now, it failed after four years. For an average PSU, acceptable, I guess. But for this unit (and I paid a full $140, I wanted it so bad), not so good. The 5 year warranty is bailing me out here, but I'm still stuck with an unusable $2800 power PC for several weeks and am forced to type this out on a tablet. I've never had a PSU fail on me before -- and, in my very early days, actually trusted one that cost $30, which I now very much know was a piece of cr#p (not purchased at Newegg, btw). I know anything built by humans can't be perfect, and Seasonic will -- I trust, given the warranty -- take care of this, but it is very disappointing to be without my "big PC" and my new CPU/MB/RAID array, all purchased through Newegg. I'm going to be without for several weeks, and I didn't expect this to happen with one of the best reviewed (both professionally and peer reviewed here on Newegg) PSUs in the world.

Manufacturer Response:

Hi Dean,
I am sorry about the failure of the power supply but if you contact Sea Sonic USA, the RMA process is quite fast, it is very possible within 1 week you will be up and running, if not less. If you have any questions or comments, please contact me at newegg@seasonicus.com Thank You.

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

  • N/A
  • 5/9/2015 9:20:47 AM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsHumming in Less Than 8 Months

This review is from: SeaSonic X Series X650 Gold ((SS-650KM Active PFC F3)) 650W ATX12V V2.3/EPS 12V V2.91 SLI Ready CrossFire Ready 80 PLUS GOLD Certified Full Modular Active PFC Power Supply New 4th Gen CPU Certified Haswell Ready

Pros: - Extremely well packaged
- Before it started humming, it was dead silent with good power levels (that I could see).

Cons: I'm assuming it's starting to die even though it's less than 8 months old. Today, it started humming (even in Sleep mode). It's not a coil whine type of sound. It's like a transformer hum. Since the thing still works, I'm afraid to RMA it since Seasonic could say it ain't broke, charge me $25, and send it back still humming.

Manufacturer Response:

Hi David, I am sorry about the noise, please do contact Sea Sonic USA and they will RMA your unit and resolve your issue. If you have any questions or concerns, please contact me at: newegg@seasonicus.com and I will do my best to assist you in this RMA process. Thank You.

Did you find this review helpful? Yes No

  • chidino
  • 5/3/2015 2:06:16 AM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

1 out of 5 eggs

This review is from: SeaSonic X Series X650 Gold ((SS-650KM Active PFC F3)) 650W ATX12V V2.3/EPS 12V V2.91 SLI Ready CrossFire Ready 80 PLUS GOLD Certified Full Modular Active PFC Power Supply New 4th Gen CPU Certified Haswell Ready

Pros: if I knew of one, I'd post it

Cons: failed early

Manufacturer Response:

Hi,
I am sorry to read of your review of our product. I hope you have used our RMA service to rectify this issue. If you have any questions or concerns, please contact us at: newegg@seasonicus.com Thank you.

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

  • Scotty
  • 5/2/2015 8:47:53 AM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsupdate after installation

This review is from: SeaSonic X Series X650 Gold ((SS-650KM Active PFC F3)) 650W ATX12V V2.3/EPS 12V V2.91 SLI Ready CrossFire Ready 80 PLUS GOLD Certified Full Modular Active PFC Power Supply New 4th Gen CPU Certified Haswell Ready

Pros: silent, fully modular, subdued color, fan switch, high quality fan, Japanese capacitators, and seven year warranty.

Cons: psu side of 24 pin and 8 pin connectors very very tight. recommend plugging and unplugging until they loosen up, Before installing.
I wish they would package this quality and reliability in an sfx-L form factor for mini itx builds.

Did you find this review helpful? Yes No

  • N/A
  • 4/19/2015 2:47:20 PM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

1 out of 5 eggsDied After One week

This review is from: SeaSonic X Series X650 Gold ((SS-650KM Active PFC F3)) 650W ATX12V V2.3/EPS 12V V2.91 SLI Ready CrossFire Ready 80 PLUS GOLD Certified Full Modular Active PFC Power Supply New 4th Gen CPU Certified Haswell Ready

Pros: Was awesome while it worked

Cons: Died after one week of use. The hybrid mode is possibly glitchy and caused the death of my psu.

Other Thoughts: i still like seasonic psu. but i was seriously disappointed after this one died. At least it didnt kill any of my other components. Already in the process of getting this RMA'ed.

Manufacturer Response:

Hi Nathanael,
Sorry to read of your experience with the X-650. Normally speaking, the hybrid mode should not have any affect on the reliability of the PSU as there is Over Temperature protection built in. Perhpas a cable came lose? I hope you have done the RMA, either through NewEgg or Sea Sonic USA. If you have any questions or concerns, please contact us at: newegg@seasonicus.com Thank You.

Did you find this review helpful? Yes No

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