|Item model number||SS-1250XM2|
|Item Weight||10 pounds|
|Product Dimensions||5.9 x 3.4 x 7.5 inches|
|Item Dimensions L x W x H||5.91 x 3.39 x 7.48 inches|
Seasonic SS-1250XM X-Series ATX PC Power Supply
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- 80PLUS Gold Certified super high efficiency
- Full modular cabling design
- DC connector module with integrated VRM
- Input voltage 100-240V (max 90-264V)
- Tight voltage regulation (+/-3%)
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This high-wattage power supply is the top of the line of our fully modular multi-output ATX power supply family, that was pioneering in obtaining the industry’s first 80 Plus Gold certification. Its newly improved Hybrid Fan control circuit employs hysteresis through an innovative IC, which automatically adjusts the fan mode and its speed according to the ambient temperature level. Reducing the number of on/off cycles of the fan further improves energy utilization and prolongs the lifespan of the system. This recently upgraded member of the premium X-series product family boasts true class leading performance and build quality. Seasonic was the forerunner of creating the very first 80 PLUS Gold certified power supply on the market and since that time it has built a very popular Gold series lineup that covers a full power range of power supplies with impeccable performance and efficiency. The highly efficient 80 PLUS Gold certification guarantees greater than 87 %, 90 % and 87 % efficiency at 20 %, 50 % and 100 % operating loads, respectively. The clear advantage of buying a power supply with 80 PLUS Gold rating is the fact that the less energy gets wasted during power conversion, the lower the operating costs will be for the user.
Safety WarningNo returns or exchanges, but item is covered by the manufacturer's warranty.
Legal DisclaimerNo returns or refunds but product is covered by manufacturer's warranty.
Top customer reviews
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i4770k 16gb - ASUS maximus VI heero
4x SCSI3 HDD's
The gold rated efficiency claim I tend to view more as marketing since psu mfg's police themselves, besides, efficiency ratings only matter for over 80% utilization. I don't expect to be taxing the psu that hard all the time (the one 2star review, I don't think 850w is enough for his kit). For me, the quality of the power is what counts. I use a psu tester always before plugging it onto my mb. This unit was solid spot on for all voltages except one plug was 11.9v. Within spec, but there's enough connectors that I can not use that and have plenty to spare. If I add so much hardware I'm actually using all the connections on the psu, I should be buying a bigger psu.
It's very quiet. I have mine on normal mode, I don't see a need to go to fanless mode.
It's fully modular and comes with a nice sleeved mb power cable, and plenty of black power cords for most anyone. The mb and cpu power cables are long enough to route through a thermaltake A71 full tower with slack to spare connected to a ASUS maximusVI hero full size atx board. Quality of power, ease of installation, and number of connectors are all excellent.
A bonus is the bags for the cables that it comes with, and the bag the psu is packaged in. Rather than a rats nest of unused cables, you can keep your spare parts organized, the velvet bag will be stuffed with extra cables in my parts box.
The only con would be, for me, is that it is a single rail psu. Single rail psu's mean you don't have to balance the load on the psu, but I'm used to that. Since most psu's now are all single rail, I'll have to grin and bear it.
I've been around the block the last 20 years building and supporting machines for a living, electronics fail, fact of life. In my experience though, if it passes burn in, I expect this unit to be as rock solid as any seasonic psu. It's smaller, lighter, made in china, but what isn't nowadays. The one good thing is that seasonics have always been made in china, so I'm pretty confident they know how to make a power supply. Any unexpected failures down the road and I'll update this, but if I need another power supply for another build, I'll be buying a seasonic again.
9/11/2015 - Review downgraded to 3 stars: PSU stopped working a few week back. Had to do 3 hours of trouble shooting to find out there was some problem with the peripheral outputs. PC would turn on with no peripherals hooked up but would not turn on if any peripherals installed. Contacted Seasonic and received RMA#. Sent in the PSU and received it back in 2 weeks with the problem fixed. Unfortunately it looks like when the PSU broke it also cooked my 2 hard drives, 1 ssd and 1 hdd. Could be a coincidence that they both went bad at the same time but it is unlikely. I will update my review if anything exciting happens.
I will say you'll probably want to be careful about plugging in all your modular cables to the PSU first rather than pushing them in later - sharp, near perfect plastic molding on the plugs is no friend to fingers. Mine still hurt days later :P
If you need a ton of power for multiple GPUs, this is probably your unit. There are options out there for more wattage if you need to run quad crossfirex or 3-/4-way SLI, but for the dual high end card rig, this should do it.
NZXT Phantom 410 case - Orange (5/5 - awesome case and fits a Corsair H100i with no modifications at all!)
Gigabyte 990FX-A UD3 Rev 3 (i give it 0/5 stars, cannot disable VRM throttling, MOSFET cooler terrible, cannot overclock due to 1GHz limiter when VRM too hot)
AMD FX-8350 (4/5 - 8 cores for relatively cheap and good overclocking potential is great!)
32GB Corsair DDR3 1600 4x8G (4/5 wish it had a nicer heatsink)
2 x Gigabyte Radeon HD7970 in CrossFireX (4/5 voltlocked and no vga bios fix)
2 1TB HDDs
This awesome PSU
Most recent customer reviews
I'm using GTX 1080ti, i7-7700k, 32GB Memory
and not always shut down my computer and still running well during this 4 months