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What wattage do I need in my power supply to run this rig?

Last response: in Components
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October 4, 2013 6:59:42 PM

This is my first post.. I hope it is in the correct place. Please correct me if it isn't. I need help figuring out what I need for my rig, power wise. I don't want to accidentally not get enough power to my system. I'll post the specs below.


Intel Core i7-3770K 3.5GHz Quad-Core Processor
Corsair H110 94.0 CFM Liquid CPU Cooler
Gigabyte GA-Z77X-UP4 TH ATX LGA1155 Motherboard
Corsair Vengeance 8GB (2 x 4GB) DDR3-1866
Samsung 840 Series 120GB 2.5" Solid State Disk
Samsung 840 Series 120GB 2.5" Solid State Disk Seagate Barracuda 1TB 3.5" 7200RPMSapphire Radeon HD 7970 GHz Edition 3GB
Corsair Air Series SP120 Quiet Edition (2-Pack) 37.9 CFM 120mm Fans
Pioneer BDR-2208 Blu-Ray/DVD/CD Writer
Asus PB278Q 27.0" Monitor (2560x1440p)

Thank you! This is my first gaming rig. Feel free to correct me and/or give me products that would be better! I want to be able to run about anything on Ultra on that big monitor. Thank you.
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a b ) Power supply
October 4, 2013 7:13:40 PM

Yea a 750 will give you all the power you need plus extra in case you decide to add later on.
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a b 4 Gaming
a b ) Power supply
October 4, 2013 7:28:58 PM

what you do is look at the wattage of your cpu and the max rated power use of your gpu then add 100w for safety and cap aging in the power supply.
if your cpu used 100w on full load and your gpu 300w. look for a 500w ps to cover the max load plus fans and drives. with power supply look at there reviews and there tier. level one power supplys are cosair and seasonic. they have very few failures and are rated for there output. level five usints would be deablotech and your taking your life and rig in great harm. most of these level 5 units cant output what there stamp on the unit. and if they do fail they fail with a large pop and kill your rig.
http://www.youtube.com/watch?v=Em4PLzv2zSE
http://www.youtube.com/watch?v=q41GjPgm9d8
http://www.youtube.com/watch?v=xYB9WkiZ9SQ
there one on your tube from canada tester that blew the main breakers.
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October 4, 2013 7:31:52 PM

drtweak said:
Yea a 750 will give you all the power you need plus extra in case you decide to add later on.


Good to know!
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October 4, 2013 7:33:45 PM

smorizio said:
what you do is look at the wattage of your cpu and the max rated power use of your gpu then add 100w for safety and cap aging in the power supply.
if your cpu used 100w on full load and your gpu 300w. look for a 500w ps to cover the max load plus fans and drives. with power supply look at there reviews and there tier. level one power supplys are cosair and seasonic. they have very few failures and are rated for there output. level five usints would be deablotech and your taking your life and rig in great harm. most of these level 5 units cant output what there stamp on the unit. and if they do fail they fail with a large pop and kill your rig.
http://www.youtube.com/watch?v=Em4PLzv2zSE
http://www.youtube.com/watch?v=q41GjPgm9d8
http://www.youtube.com/watch?v=xYB9WkiZ9SQ
there one on your tube from canada tester that blew the main breakers.


Thank you so much for all of that info! That helps a ton. It would definitely be worth it then to have plenty of power and a good brand. Thanks again, this was exactly what I wanted! You are awesome!
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a b 4 Gaming
a b ) Power supply
October 4, 2013 7:48:14 PM

there are few places if you google it that load test a power supply for review.
on the review look at the power supply build qal. if it stayed within atx spec when loaded and maxed out and how much ac ripple it had when loaded. also on some oem sellers find out who made there power supply some vendors like sesonic rebrand there units and sometime the rebranded units are on sale. also look at the wire gauge and lenth of the cables. newer modular power supplys give you real long cpu power cable to reach behind the mb tray.
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October 4, 2013 8:27:07 PM

smorizio said:
there are few places if you google it that load test a power supply for review.
on the review look at the power supply build qal. if it stayed within atx spec when loaded and maxed out and how much ac ripple it had when loaded. also on some oem sellers find out who made there power supply some vendors like sesonic rebrand there units and sometime the rebranded units are on sale. also look at the wire gauge and lenth of the cables. newer modular power supplys give you real long cpu power cable to reach behind the mb tray.


Oh awesome! Good to know, thank you! I'll make note of all that.
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