Blue Led PSU?

Lawrence Jiang

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Jun 18, 2013
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I'm planning to build a pc with this case.

http://www.amazon.com/Crafted-Series-Tower-Steel-Chassis/dp/B003WE9WQO/ref=sr_1_1?ie=UTF8&qid=1371692266&sr=8-1&keywords=nzxt+phantom

It'd be nice if I could find a good quality power supply with a blue led fan to match it. Of course, I would prefer quality over looks. I've found a few that match, but the reviews weren't so good. Just wondering if you guys would know of any that would suit me well. Budget is 100 dollars.

Also, it would need enough power to power an i7-2600k and a radeon 7870 or gtx 760 when it comes out. Thanks.
 

aredflyingbird

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Instead of getting a PSU with LED's, get this one http://www.newegg.com/Product/Product.aspx?Item=N82E16817207013&Tpk=xfx%20550&IsVirtualParent=1
Then buy this: http://www.amazon.com/NZXT-Sleeved-Light-Meter-CB-LED20-BU/dp/B0046Y5Z5G/ref=sr_1_1?ie=UTF8&qid=1371692834&sr=8-1&keywords=nzxt+sleeved+led+kit
to light up your case. A 550w, will also be enough for a 7870, 760
 

Lawrence Jiang

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That's actually pretty cool, I'll probably end up doing that. But one more thing, how many watts should i get if I plan to use two graphics card in the near future? I don't want to buy another psu if I do.

 

aredflyingbird

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What's your motherboard?
 

Lawrence Jiang

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http://www.amazon.com/gp/product/B007R21JWC/ref=ox_sc_act_title_8?ie=UTF8&psc=1&smid=ATVPDKIKX0DER
 

aredflyingbird

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Having two gpu's on that motherboard will limit your performance. (One card running at 3.0 @16x, and the other 2.0 @4x.) So getting two GPU's is not a good idea, just get a higher-end card.
 
That GIGABYTE GA-Z77-DS3H motherboard doesn't even support 2-way SLI mode so your plan on maybe getting two NVIDIA GPU graphics cards (i.e. GeForce GTX 760) won't work.

SLI mode requires a minimum of eight PCI Express lanes from the CPU's PCI Express bus to each graphics card.

An SLI capable motherboard will always include the SLI Bridge Connector in the motherboard package.
 

Lawrence Jiang

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but that motherboard would be able to support two radeon graphics cards right?

 


Yes it will support two Radeon HD graphics cards in 2-way CrossFireX mode.
 

Lawrence Jiang

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Then if I used two Radeon 7870's, how many watts would you recommend?
 


For a system using two AMD reference design Radeon HD 7870 GHz Edition graphics cards in 2-way CrossFireX mode AMD specifies a minimum of an 600 Watt or greater system power supply. The power supply should also have a maximum combined +12 Volt continuous current rating of 40 Amps or greater and have at least four 6-pin PCI Express supplementary power connectors.

Total Power Supply Wattage is NOT the crucial factor in power supply selection!!! Sufficient Total Combined Continuous Power/Current Available on the +12V Rail(s) rated at 45°C - 50°C ambient temperature, is the most critical factor.

Overclocking of the CPU and/or GPU(s) may require an additional increase to the maximum combined +12 Volt continuous current ratings, recommended above, to meet the increase in power required for the overclock. The additional amount required will depend on the magnitude of the overclock being attempted.
 

Lawrence Jiang

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Jun 18, 2013
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would this power supply work?

http://www.newegg.com/Product/Product.aspx?Item=N82E16817139005
 


It's electrically sufficient but it doesn't have the four PCI Express supplementary power connectors that you will need.

It only comes with two (6+2)-pin PCI Express supplementary power connectors so you would need to buy a couple of Y-splitter cables like these:

http://www.newegg.com/Product/Productcompare.aspx?Submit=ENE&N=100016764&IsNodeId=1&srchInDesc=PCI%20Express&page=3&bop=And&ActiveSearchResult=True&CompareItemList=2820%7C12-201-038%5E12-201-038-TS%2C12-198-016%5E12-198-016-04%23%2C12-706-014%5E12-706-014-TS%2C12-706-022%5E12-706-022-TS&percm=12-706-022%3A%24%24%24%24%24%24%24

You can also consider the following PSUs that come with four PCI Express supplementary power connectors:

http://www.newegg.com/Product/Product.aspx?Item=N82E16817151106

http://www.newegg.com/Product/Product.aspx?Item=N82E16817207014
 


The OP mentions a i7-2600k processor so the PCI Express slots won't be using PCI Express 3.0. That would require an Ivy Bridge CPU.