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Which power supply to go with?

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February 7, 2013 6:47:28 AM

Hi friends,
I am building a new gaming rig. My specs are:
Intel core i5 3570k, asus p8z77 v pro, asus radeon hd 7970 dc2t 3gd5, corsair 2 x 8gb 1600 mhz ram, seagate 2 tb hdd, sony dvd rw.
So, plz suggest me a good psu (corsair/ seasonic) that can withstand the load at 100% usage. Also, can u suggest me a good gaming cabinet for my rig? I think to go with Corsair 400R cabinet. Do I need extra gpu holder to reduce the impact of this mssive gpu on motherboard? If yes then plz suggest me that too.

More about : power supply

a b ) Power supply
February 7, 2013 6:56:40 AM

a Corsair TX750 will be more than enough and leave some expansion room without breaking the bank... The 400r will definately do the job for a small price as under 80$ it's a Best bang for the bucks over most of the other model ^^

The DCII come with a sustain bar integrated in the cooler so it'll not flex as long as it's bolted on the PCI bracket...

You could also take a smaller 5-600w PSU but for the small price difference, you'll have room to upgrade later on the run...
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a b ) Power supply
February 7, 2013 8:58:42 AM

the 7970 requires a PSU wattage of 650W so a good 650 would do... But efficiency will be bad and the fan on the PSU will run louder. Get an 80+Bronze 750W watt PSU. I would recommend the Corsair TX750M. Its a modular power supply so it will reduce cable clutter...

If you want seasonic go for
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Its cheaper than the corsair but not by much... Both power supplies are pretty much the same so go for any one...

The Corsair 400R is great, but if you want sleek looks, go for the Fractal Design R4... The 400R has better airflow but the Fractal looks more refined...
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a c 297 ) Power supply
February 7, 2013 11:33:09 AM

epsilondav said:
Hi friends,
I am building a new gaming rig. My specs are:
Intel core i5 3570k, asus p8z77 v pro, asus radeon hd 7970 dc2t 3gd5, corsair 2 x 8gb 1600 mhz ram, seagate 2 tb hdd, sony dvd rw.
So, plz suggest me a good psu (corsair/ seasonic) that can withstand the load at 100% usage. Also, can u suggest me a good gaming cabinet for my rig? I think to go with Corsair 400R cabinet. Do I need extra gpu holder to reduce the impact of this mssive gpu on motherboard? If yes then plz suggest me that too.


Hi - If you want to get a 650-750w PSU thet's OK, but unnecessary.
That system will run fine on a quality 550w unit. That's what
realhardtech suggests and that's their expertise. gpu makers
always suggest more than needed to allow for psu's that don't
deliver publ specs and older psu's that might not have sufficient
amps on the +12v rail(s)

To correct bad info given to you, efficiency has nothing to do with
total wattage of the PSU. Efficiency is how a particular PSU converts
electr from the wall to DC power for the components.

example: if your pc components need 200w at a point in time,
a psu that's 87% efficient will pull 230w from the wall, an 80%
efficient psu will pull 250w, and a 70% psu will pull 286w from the
wall, all 3 cases to deliver 200w to your components.

Now, if you're pretty sure you are going to CF down the road, you
might want to get a quality larger power PSU. But, if you are
going to use only one gpu7970, then 550w is more than enough.

No harm in more, but it's unnecessary and is more $$ upfront.
I do recommend you get an efficient unit.

A few to consider:

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

http://www.newegg.com/Product/Product.aspx?Item=N82E168... prob the best deal quality 650 nets to $60 after promo's

http://www.newegg.com/Product/Product.aspx?Item=N82E168... nets to $68 after promo's

http://www.newegg.com/Product/Product.aspx?Item=N82E168... nets to $70 " " (prob the one I'd get - prof series)


a lot more prom activity on the 650's, so I'd prob get one of those as they're
less $


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