New system on order

I have this Power supply...The BFG550gs from my old computer. Will this work ok on my new order? How do you figure it out?
http://www.newegg.com/Product/Product.aspx?Item=N82E16817702011
BFG Tech GS-550 550W ATX12V V2.2 / EPS12V V2.8 SLI Ready CrossFire Ready Power Supply - OEM






Rosewill CHALLENGER Black Gaming ATX Mid Tower Computer Case, comes with Three Fans-1x Front Blue LED 120mm Fan, 1x Top 140mm Fan, 1x Rear 120mm Fan, option Fans-2x Side 120mm Fan
http://www.newegg.com/Product/Product.aspx?Item=N82E16811147153

GIGABYTE GA-Z68A-D3H-B3 LGA 1155 Intel Z68 HDMI SATA 6Gb/s USB 3.0 ATX Intel Motherboard
http://www.newegg.com/Product/Product.aspx?Item=N82E16813128502

EVGA 01G-P3-1556-KR GeForce GTX 550 Ti (Fermi) FPB 1GB 192-bit GDDR5 PCI Express 2.0 x16 HDCP Ready SLI Support Video Card
http://www.newegg.com/Product/Product.aspx?Item=N82E16814130625

Intel Core i7-2600K Sandy Bridge 3.4GHz (3.8GHz Turbo Boost) LGA 1155 95W Quad-Core Desktop Processor Intel HD Graphics 3000 BX80623I72600K
http://www.newegg.com/Product/Product.aspx?Item=N82E16819115070

2X Crucial 4GB 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10600) Desktop Memory Model CT51264BA1339
http://www.newegg.com/Product/Product.aspx?Item=N82E16820148346

SABRENT CRW-UINB 68-in-1 USB 2.0 Internal Card Reader w/ USB 2.0 Port supports SDHC/VISTA
http://www.newegg.com/Product/Product.aspx?Item=N82E16820300608

Western Digital Caviar Green WD20EARX 2TB 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive -Bare Drive
http://www.newegg.com/Product/Product.aspx?Item=N82E16822136891

LITE-ON 12X BD-R 2X BD-RE 16X DVD+R 12X DVD-RAM 8X BD-ROM 8MB Cache SATA Blu-ray Burner with 3D Playback iHBS212-08 LightScribe Support
http://www.newegg.com/Product/Product.aspx?Item=N82E16827106348

COOLER MASTER Hyper 212 Plus RR-B10-212P-G1 "Heatpipe Direct Contact" Long Life Sleeve 120mm CPU Cooler Compatible Intel Core i5 & Intel Core i7
http://www.newegg.com/Product/Product.aspx?Item=N82E16835103065

 

That power supply should work for you, so long as it has all the connectors that you need.

 

Ya, you should be just fine. The easiest way to figure out what one needs is to go by how much the video card needs and any other hi-power add-on and add %20 at a minimum. I for instance have a Corsair TX750W as I run my machines very hard. Or use a PSU calculator for a more accurate calculation.

 

What Augie said, but when you use the calculator, add 50w or so on top to allow for errors and to allow the psu's to age. (they output less power as time goes on)

 

Thanks guys...what the worst thing that will happen if my PSU can't handle it?

 

It generally won't boot.

 

The worst thing is a catastrophic failure in which the PSU fries and takes out everything connected to it! While certainly not common, it has happened. The most common issue with an underpowered PSU is difficult to troubleshoot erratic behavior like sudden shutdowns, reboots, and system freezes - all of which can cause hard drive failure and data corruption. If the PSU is way inadequate, the computer just will not boot.

I personally would get a new PSU for my new hardware. 550W is adequate though I personally would feel more comfortable with a little more head room. If nothing else, when a PSU is just loafing along, it can toggle down its cooling fan speed for quieter operation. It is important (IMO) to note that BFG is not 80 Plus certified. While it claims an excellent efficiency rating, it does not specify the load at which that rating was achieved. It could be a steep bell curve and efficient at just one load level - which is typical for all less sophisticated, entry level supplies. For a PSU to be certified 80 Plus, it must maintain a fairly linear high efficiency across a wide range of loads, as would be expected in a PC. A PSU with a high linear efficiency rating generally indicates a superior design using better quality (and tighter tolerances) parts and better assembly/construction techniques.

I use this analogy: Would you buy a brand new Porsche and fill it with cheap gas from the corner Tobacco Hut-Kwik Shop? An engine can miss a beat and keep on running. Not so with high-speed digital electronics. You owe it to the excellent components (motherboard, CPU, RAM, graphics card) you have selected to feed them good, solid, clean power. I like Corsair and Antec PSUs.

I agree the eXtreme PSU calc is the best PSU calculator out there. Plan ahead and plug in all the hardware you think you might have in 2 or 3 years (extra drives, bigger or 2nd video card, more RAM, etc.). Be sure to read and heed the notes at the bottom of the calculator page. I recommend setting Capacitor Aging to 10% and setting both TDP and system load to 100%. These steps ensure the recommended supply has adequate head room for stress free (and perhaps quieter) operation, as well as future hardware demands. Setting Capacitor Aging to 30% will provide an even nicer amount of headroom. And remember, the computer's components will only draw what they need, not what the PSU is capable of delivering. And the PSU will only draw from the wall what the computer demands, plus another 15 - 20% due to PSU inefficiencies. When it comes to power supplies, always err on the side too big rather than too small. Just don't get carried away - buying way too big only hurts the budget.

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Rosewill makes some pretty good cases (unfortunately, can't say the same for their PSUs) but I will never buy a case that does not have removable, washable air filters. That Rosewill has one for the bottom mount PSU only. None for the front of the case. On my systems, I only have to clean the interior once a year. Before with my unfiltered cases, I was lugging them outside 3 or 4 times a year. Not fun. I might suggest the Antec Three Hundred which right now, is on sale $5 cheaper than the Rosewill case, and free shipping too!

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I don't see an operating system listed. Understand only full "boxed" Retail licenses can be transferred to new computers. It is illegal to use an OEM license that came with or was purchased for another computer on a new computer. If the disk says OEM/System Builder, Upgrade, Academic Edition, or "For Distribution with a new PC only", then it is not transferable to a new PC (or upgraded motherboard) under any circumstances. These OEM licenses are inextricably tied to the "original equipment". Therefore I recommend (with 8Gb of RAM) 64-bit Windows 7 or one of the many free Linux alternatives.

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Finally, you may not be aware, and for many enthusiasts it is not a concern, but it is important all readers understand that both Intel and AMD warranty their “retail” boxed versions of their CPUs that come with supplied heatsink fan assemblies as “a unit". Consequently, both Intel and AMD require the use of the supplied coolers with their CPUs and using any alternative cooling solution violates the terms of the CPU warranties. Note this IS stated in the CPU warranty booklets that come with each CPU, or can be viewed online at Intel and AMD.