SeaSonic X750 750W 80 Plus Gold Full Modular Power Supply $90 after $15 Rebate + Free Shipping

In 4 1. Thank you!

Quote from gjbquist : Thank you and reps to everyone who gave me advise. I have one last concern. For some reason under Details it says this PS does not support CrossFire, but in the Overview it says it does. Just an error? It looks to me like it has all the proper power connections.

I never understood SLI/Crossfire support. You need to know how much power your actual setup will pull. There's PSU calculators out there to check.


As long as it has the right number of 6pin/8pin power connectors, you should be set.





I've seen a 650w corsair run a 3770k & GTX 570 SLI. This PSU will run basically everything unless you want Tri/quad/4way SLI/ Tri/Quad-fire. If you want those set ups, you already know what PSU (or 2 for the 4 card set ups) you need.

I have an 850w corsair and that fan only ever kicked on with my 5ghz 2600k / gtx 570 sli set up while runnind 3D mark. Games & the latter never do anything. Since seasonic is, for all intents and purposes, better, this is a solid purchase.

I'm "this" close to buying one as it is.


Hope this helps.

Quote from grueber : I don't know why you feel the need to thread crap. Seasonic is a premium PSU brand. It's a good price relative to other Seasonic products. If you don't want to pay the premium for the Seasonic brand then don't. No one cares if you buy yada yada brand for less.

Did I say anything bad about the PSU? No. Did I comment that I thought it wasen't a good price imo? Yes.

Get over yourself, if you want to buy the PSU, buy it. If you want to pay a premium than pay it. You should join a deal site that everyone posts how you like.

Quote from Synthetickiller : I never understood SLI/Crossfire support. You need to know how much power your actual setup will pull. There's PSU calculators out there to check. As long as it has the right number of 6pin/8pin power connectors, you should be set. I've seen a 650w corsair run a 3770k & GTX 570 SLI. This PSU will run basically everything unless you want Tri/quad/4way SLI/ Tri/Quad-fire. If you want those set ups, you already know what PSU (or 2 for the 4 card set ups) you need. I have an 850w corsair and that fan only ever kicked on with my 5ghz 2600k / gtx 570 sli set up while runnind 3D mark. Games & the latter never do anything. Since seasonic is, for all intents and purposes, better, this is a solid purchase. I'm "this" close to buying one as it is. Hope this helps.

Thanks, that's basically my line of thinking as well. It just struck me as odd with the "No" next to crossfire support. I'm in for one.

I have this PSU, got it from my own wheeling and dealings in November during "Black Friday Week" wherein they shot an email deal and had already discounted it. Grabbed it for a cool hundo.
This psu is AWESOME. No one posts it enough, but it comes in A BLACK VELVET BAG, along with a dual pocketed velcro pouch for all the cables (sata/molex in one/pci-e, atx and mobo power cords in the other). It's a bit overkill for my rig, and it only makes noise (albeit very little noise) when its pumping out some juice- the fan only kicks on when its at 20% load. When it does kick on, I can't hear it.

Anyone who's debating picking this up, do it. Very satisfied.

Quote from fenix793 : I picked one up during the last sale. The unit is good but it does produce some coil whine noise. The first one I got was loud enough that I exchanged it for another. The new one is a better. I can hear the whine up close but can't hear with the case closed. Plenty of power for my 660 Ti SLI setup. The modular design is nice but be warned if you have a bigger case the 24 pin motherboard cable and the 8 pin CPU cable are 58cm in length. I'm able to use them but they are under some stress being stretched to the limit. Not a big deal for me I ordered a full cable set from ModDIY but keep in mind you may need to pickup some extensions.

Bummer to hear about the coil whine. Mine's like ultra sneaky silent.

I can confirm about the length of the power cables being a bit short. I have an Antec P280 (don't get one) and the cable management can be a bit stressful as the big boy cords are a little short. If they had like an extra 3 inches, this wouldn't be a problem.

Sorry to go off topic, but fenix do you like those extensions? My cable managment is barf city ATM, and I was looking at either going super cheap with some monoprice (yuck) or doing it proper and rocking the bitfenix cables.

Quote from nolf66 : Did I say anything bad about the PSU? No. Did I comment that I thought it wasen't a good price imo? Yes. Get over yourself, if you want to buy the PSU, buy it. If you want to pay a premium than pay it. You should join a deal site that everyone posts how you like.

You stated it was overpriced by comparing it to a psu that is not the same make or specs.

If you don't like to be called out don't thread crap.

Quote from hunterbush : Bummer to hear about the coil whine. Mine's like ultra sneaky silent. I can confirm about the length of the power cables being a bit short. I have an Antec P280 (don't get one) and the cable management can be a bit stressful as the big boy cords are a little short. If they had like an extra 3 inches, this wouldn't be a problem. Sorry to go off topic, but fenix do you like those extensions? My cable managment is barf city ATM, and I was looking at either going super cheap with some monoprice (yuck) or doing it proper and rocking the bitfenix cables.

Is your model the third generation? Does it have "Km3" on the side of the psu?

Quote from jinrf : You'd better get a 1000W or larger unit. As the PSU works most efficiently at around 50% load, let alone OCed CPU and GPU will boost the power consumption significantly. I have a similar rig and I chose Seasonic Platinum 1000.

Please don't listen to this guy... He's wrong on so many levels *smh*

Quote from nhttri : Please don't listen to this guy... He's wrong on so many levels *smh*

Please be specific. which point is wrong

Quote from Tsumi : Yeah... 3 years ago. There have been significant advances in the PSU industry in the past year alone. It's lower quality in every aspect, there is no getting around that fact. Thermaltake is notorious for putting out crap PSUs. You should NEVER give advice on power supplies again. 750 watts is more than enough to handle that system overclocked to the max on air and water. Also, read this [overclock.net] regarding the 50% load myth.

A PSU is supposed to last for much more years than GPU or CPU. A person with OCed 7970s for now is more likely to upgrade to some even more powerful cards in the next several years.
About the link you gave, obviously it is true for a single 5870 card which the author used. but it is completely a different story with OCed 7970 * 2.

From the configuration of the OP, budget seems not to be an issue and thus he deserves a much better PSU (e.g., 80 Platinum one with higher power) than this.

In the end, why people are preferred to buy a car with 4.0L+ engine even for most of time it overkills, when budget is not a problem?

Good deal, beats the black friday deal for $99. This is like the 2nd best 750w psu you can get, trailing slightly behind the Corsair AX 750 I believe.

Quote from nhttri : Please don't listen to this guy... He's wrong on so many levels *smh*

He is indeed correct, if your sole criterion is efficiency. PSUs generally operate most efficiently somewhere around 50% load. Whether or not the difference in efficiency is monetarily relevant compared to the increased cost of a higher-rated PSU is another matter entirely.

Quote from hunterbush : Bummer to hear about the coil whine. Mine's like ultra sneaky silent. I can confirm about the length of the power cables being a bit short. I have an Antec P280 (don't get one) and the cable management can be a bit stressful as the big boy cords are a little short. If they had like an extra 3 inches, this wouldn't be a problem. Sorry to go off topic, but fenix do you like those extensions? My cable managment is barf city ATM, and I was looking at either going super cheap with some monoprice (yuck) or doing it proper and rocking the bitfenix cables.

I also have an Antec P280. It's much better than the P183 it's replacing although there are definitely areas where it can be better. Even without new cables/extensions I was able to get a pretty clean setup. I'll post a picture when I get home. That being said I actually ordered a new cable set rather than just extensions. ModDIY can make custom cables for an assortment of PSUs so I had them make a red sleeved set. I asked for 80cm cables which should allow me to route them however I want. All in all the total came to about $300 for the power supply cables + sleeved versions of every other cable (SATA, USB, Power/Reset/etc, 3/4 pin fan). Pricey yes but I wanted it to be my best build ever so I didn't spare any expense. I considered the Bitfenix cables because they seem to be the best of the extension bunch but ultimately decided to just get a full cable set. If you are thinking about getting extensions I'd go for it. The look is really great plus adding a few inches to the Seasonic cables will help with management.

Quote from mrgamers : Is your model the third generation? Does it have "Km3" on the side of the psu?

My model is the third generation one and both units that I received had some coil whine. Others have reported the same issues with the X series and the Corsairs that are based on this platform.