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PSU Help

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  • Power Supplies
  • Components
Last response: in Components
December 5, 2012 2:42:18 AM

I want to build a Gaming Rig and i am confused to choose which PSU(450W or 600W or 750W or 1000W) is good for me ?

Below i am writing my Build Specifications....Please help me.:-

Intel 3.5 GHz LGA 1155 Core i7 3770K Processor
ASUS P8Z77-V DELUXE Motherboard
Kingston V+200 120 GB SSD Internal Hard Drive (SSD Now V+200)
WD Caviar Green 1 TB Desktop Internal Hard Drive (WD10EARX)
G.Skill RipjawsX DDR3 8 GB (1 x 8 GB) PC RAM (F3-12800CL10S-8GBXL) X 2 = 16GB
Asus DRW-24B5ST Internal Optical Drive
Corsair 300R Cabinet
Gigabyte AMD/ATI GV-R777OC-1GD 1 GB GDDR5 Graphics Card

In future I will use another Graphics Card with this Computer(AMD CrossfireX)

Please help me...tell me which PSU can handle this Configuration(450W or 600W or 750W or 1000W) ?

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Best solution

December 5, 2012 3:07:30 AM

If you want crossfire in the future get a 750 Watt PSU, and make sure it has four PCIe connectors on it. The HD 7770 only uses one PCIe but two will us two as well. If you ever get a higher up card, they will use two per card and if you crossfire you will need all four, plus it is good for efficiency purposes to buy more than you need for power supplies so get 750 watts.
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December 5, 2012 3:33:00 AM

or you could drop from i7(worthless for gaming in quad form) to i5(ideal), get a lower wattage(but good quality) psu and get a better graphics card up front.

one fast graphics card is better than 2 slower ones for a number of reasons. when you feel the need to upgrade, buy a replacement and then sell your old card to help cover the cost. if you got a xfx 550w and one of the somewhat cheaper i5 quads, you could probably swing a hd7950. Overclock the crap out of it and you rival the power of 2 hd7770s working together.

The best part is you don't have to wait for more performance or deal with any of the hassles of a dual card setup. when it comes time to upgrade again(which will take longer with a 7900 series card than a 7700 series card) you should have more money saved up for another higher end card.

Oh yeah. If you get an unlocked k series processor, you will want better cooling than the box heat sink and fan can provide. some of those larger tower coolers might bump into the heat sinks on the likes of ripjaws ram. consider corsair vengeance low profile or gskill ares. The cooler master hyper 212 is a good cooler for not much coin(evo only cools about 1 degree better than plus, so if the evo costs much more just get the plus).
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December 5, 2012 5:12:16 AM

Best answer selected by waatanideasirji.
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December 5, 2012 5:29:55 AM

Everybody is telling me not to buy i7 and a K version processor because i don't do overclocking or such types of things....I work on stock settings.

So I have thought twice and come on the conclusion that i will not buy a i7 and a K version of processor....Now the configuration i m planning to build are :

Intel Core i5-3570
ASRock Z77 Extreme 3 Motherboard
Kingston V+200 120 GB SSD Internal Hard Drive (SSD Now V+200)
WD Caviar Green 1 TB Desktop Internal Hard Drive (WD10EARX)
Asus DRW-24B5ST Internal Optical Drive
Sapphire AMD HD 7850 1GB OC GDDR5 1 GB GDDR5 Graphics Card
Corsair Vengeance DDR3 8 GB (1 x 8 GB) PC RAM (CMZ8GX3M1A1600C10) x 2 = 16GB
Corsair 300R Cabinet
Seasonic SS-750JS 750 Watts PSU


Is this the right build or will u guys suggest me something more..?
I m Moderate user and play games (Not High gaming) and do Multi-tasking.
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