How much power required?

Tensor2

Honorable
Jun 19, 2013
7
0
10,510
NOTE: Why is PSU forum not an option for where to post this question? Oh well!

The calculator at http://www.extreme.outervision.com/PSUEngine totals around 1050 watts and suggests a 1200 watt PSU. I was originally planning on the Corsair AX1200i PSU, but now I am wondering if the Corsair HX1050 will suffice. Some users on this site have said that the AX1200i is too much for my system, and I thought I'd get another opinion or two. I'm leaning towards Corsair power supplies because the manufacturer directly sells individually sleeved cable sets and sleeving them myself has been a pain in the past.

The following is a list of the relevant parts:

- Corsair 900D case, every surface lined with accoustic dampening mats/blocks
- 2x XSPC RX480 radiator: top and bottom; may add another one or two 120.2 rad if needed; sub 8 FPI great for low noise justifies the XSPC selection.
- Swifttech modded D5 Vario pump with new controller for quieter operation
- 16x Corsair SP120 Quiet Edition fans for radiators with thin foam spacers if they fit to reduce noise and keep air from escaping
- AF140 rear exhaust fan with rubber mounts
- 7x AF120 Quiet Edition front intake fans with rubber mounts
- Raystorm CPU block OR Koolance CPU-380I, undecided
- Bitspower cylindrical reservoir, $40, nothing sepcial but functional
- RAMPAGE IV motherboard - May wait to see if new 2011 ones out in September; undecided which model
- i7 4930k CPU - May just get a 3930k if it does not appear to come in September
- 16 GB Corsair Dominators CL9 1600 - use these in all builds
- 2x GTX 780 Hydrocopper or GTX 780 stock with other block
- NZXT sleeved LED string, white, 2m
- LCD fan controller - Bitfenix Recon
- 1x Sata 6gbps 240 GB SSD, whichever brand is cheaper
- 2 TB 7k rpm enterprise class drive for data storage
- 2-4x 15k RPM SAS drive
- 2x 1L FrozenDragon high performance fluid

So, power wise: 24 low rpm 120mm fans, 1 low rpm 140mm fan, 1 SATA III SSD, 2-4 15k RPM SAS drives, 1 SATA III data drive, LED strip, 1-2 cold cathodes, high end motherboard, 2 GTX 780 cards at maximum allowed vcore settings, i7 4930k IVB-E at 5ghz probably 1.35-1.4 v (guessing based on 3930, its not out yet), D5 vario pump, LCD fan controller... I think that's it?

Edit: It seems the best solutions to be quiet (no fan at low load), fully modular, and >1000 watts are the XFX ProSeries P1-1050-BEFX 1050W, Seasonic X 1050, Seasonic X 1250, and Corsair AX1200i (in my opinion). 1050 watts should be enough it seems, and the XFX ProSeries P1-1050-BEFX and Seasonic X 1050 are about the same price as the potentially "lesser" HX1050 I was interested in.
 
Solution
While the rest of the HX line is superb, consistently getting 10.0 performance ratings from jonnyguru, the 1000 and 1050 are dogs by comparison.... see

(8.5 performance rating http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story5&reid=245
(9.0 performance rating) http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story4&reid=89

1200 is not "too big" ..... it will be more efficient at full load than a 1000 watter will be .... remember every PSU hits peak efficiency at 50% load. here's some jonnyguru results and newegg pricing

Corsair AX1200i - 10.0 performance rating ($290)
Corsair AX1200 - 10.0 performance rating ($280)
Seasonic X-1250 - 10.0 performance rating ($240)
Seasonic Platinum 1000W - 10.0 performance rating...
While the rest of the HX line is superb, consistently getting 10.0 performance ratings from jonnyguru, the 1000 and 1050 are dogs by comparison.... see

(8.5 performance rating http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story5&reid=245
(9.0 performance rating) http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story4&reid=89

1200 is not "too big" ..... it will be more efficient at full load than a 1000 watter will be .... remember every PSU hits peak efficiency at 50% load. here's some jonnyguru results and newegg pricing

Corsair AX1200i - 10.0 performance rating ($290)
Corsair AX1200 - 10.0 performance rating ($280)
Seasonic X-1250 - 10.0 performance rating ($240)
Seasonic Platinum 1000W - 10.0 performance rating ($230)
Rosewill Tachyon 1000W - 10.0 performance rating ($180)

Avoid purchasing by brand name and focus on products lines ..... Seasonic, Corsair, Rosewill, XFX, Cougar, Antec, NZXT all make some pretty good PSUs as well as some pretty mundane or even crappy PSUs .... however in general, the ones within a product line are generally or comparable quality, although there are exceptions (i.e. HX 1000 and 1050). It should also be mentioned that things do change over time .... I would have had XFX's premium line in there but of late, the best they have done is a 9.5 performance rating.
 
Solution

Dark Lord of Tech

Retired Moderator
http://www.newegg.com/Product/Product.aspx?Item=N82E16817207021

XFX ProSeries P1-1050-BEFX 1050W ATX12V 2.2 / ESP12V 2.91 SLI Ready CrossFire Ready 80 PLUS GOLD Certified Full Modular Active PFC Power Supply

Will get the job done ^

[strike] $219.99[/strike]
$189.99
Save: $30.00 (14%)
$159.99 after $30.00 rebate card
 

Tensor2

Honorable
Jun 19, 2013
7
0
10,510
I know there are many that will get the job done. Thanks for the advice thus far, and I will consider those items that are linked.

Must-haves for me are fully modular, quiet operation (fan that stops at less than full load), and if possible individually sleeved cables. My last PC has the AX1200, and I know it is quite reliable. The AX1200i has the fan stop at anything less than 50% load and Corsair has the sleeved cables available for $40 in several colors. I know I would be happy with it, but I was just trying to not spend $350 on it.

I am aware that the AX1200i peaks in efficiency around half load, has cheap modded cables available, and the fan stops at low load. This is perfect for what I want. I just wanted to know if I could "get away" with the HX1050 and save myself $150. I mean, $150 is a reasonable motivation to consider options.

What would anyone say about the Seasonic X 1050 vs the Seasonic X 1250? It again comes back to the question if the system would run well on 1050 watts to save a few bucks on the PSU.

Edit: the XFX ProSeries P1-1050-BEFX 1050W posted above looks good and meets what I was looking for as well. I overlooked that one. Its also visually appealing. I take that from these responses I am to think that 1050 watts will be sufficient. I'm inclined to pick "best answer" for one of the posts with the most information, though.