how do I know what connectors and amps I need?

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Tommy154

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Aug 27, 2013
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This is my first build and I'm not sure how to choose my psu. build: http://pcpartpicker.com/p/3d0iL
Currently looking for a 700-750 80 gold. I found some psu with their compatibility filter but I'm not 100% sure its correct.

From the manufacturer's website I know the GTX 770 needs 2-8pin connectors, but a lot of those recommended psu just say they have a bunch of 2 and 6 pin PCI-E and some just say they have PCI-E but don't specify the pin numbers. I also can't how much amps I need on the rails. I don't see anything on Gigabyte's site saying how much amps I need http://www.gigabyte.us/products/product-page.aspx?pid=4692#sp

Can anyone help me out and help me understand how to find this info? Thanks in advance
 
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officialexpert

officialexpert

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Mar 15, 2014
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Now a days almost Every PSU Comes with 2 & 6 Pin Connectors,If your Graphics card need 8 pin Connectors then Use as 6+2=8 & If has only 2 then put 2 pin connector :)
 
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Tommy154

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http://www.gigabyte.us/products/product-page.aspx?pid=4692#sp in reference to the 5th imagine, the connectors are all the way to the right. I can use a 6 and 2 pin connector even though the 8 pin connectors are keyed like that? Also how do I know if I'm meeting minimum amp requirements on the rails? Does pcpartpicker look at stuff like this when showing compatible parts?
 
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Mephikun

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Jan 8, 2013
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This should do just fine for what you need. It is a quality Power Supply built by Seasonic. I have taken your build and added the PSU to it.

PCPartPicker part list / Price breakdown by merchant / Benchmarks

CPU: Intel Core i7-4770K 3.5GHz Quad-Core Processor ($306.99 @ Amazon)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($29.99 @ NCIX US)
Memory: G.Skill Trident X Series 8GB (2 x 4GB) DDR3-2400 Memory ($74.99 @ Newegg)
Storage: Western Digital BLACK SERIES 1TB 3.5" 7200RPM Internal Hard Drive ($83.98 @ OutletPC)
Video Card: Gigabyte GeForce GTX 770 4GB Video Card ($379.99 @ Newegg)
Power Supply: XFX ProSeries 750W 80+ Gold Certified Fully-Modular ATX Power Supply ($99.99 @ NCIX US)
Optical Drive: Asus DRW-24B1ST/BLK/B/AS DVD/CD Writer ($19.98 @ OutletPC)
Operating System: Microsoft Windows 7 Home Premium SP1 (OEM) (64-bit) ($84.99 @ NCIX US)
Total: $1080.90
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2014-03-20 11:38 EDT-0400)

Have a nice day, and good luck with your build!
 
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HiTechObsessed

HiTechObsessed

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This one would be plenty of power for your build. 700w is overkill (even 620 is alot, but it's on sale lol) and there may be $0.25 difference per month in electricity between 80+ gold and 80+ bronze. 80+ efficiency only is relevant to miners and corporations trying to save every penny.

The 770 wants around 30a on the +12v rail, and this PSU easily gets you there, with plenty of room for overclocking and longevity, and is a top-quality product: http://pcpartpicker.com/part/antec-power-supply-hcg620m
 
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HiTechObsessed

HiTechObsessed

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Dec 3, 2013
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Here's a build, including power supply. You don't want to overpay and overvolt for that RAM, it's not going to really be any improvement. And for the same money you can get the much better 780 too:

PCPartPicker part list / Price breakdown by merchant / Benchmarks

CPU: Intel Core i5-4670K 3.4GHz Quad-Core Processor ($219.00 @ Amazon)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($29.99 @ NCIX US)
Memory: A-Data XPG V1.0 8GB (2 x 4GB) DDR3-1600 Memory ($61.99 @ Newegg)
Storage: Western Digital BLACK SERIES 1TB 3.5" 7200RPM Internal Hard Drive ($83.98 @ OutletPC)
Video Card: EVGA GeForce GTX 780 3GB Video Card ($489.99 @ NCIX US)
Power Supply: Antec High Current Gamer 620W 80+ Bronze Certified Semi-Modular ATX Power Supply ($59.99 @ Newegg)
Optical Drive: Asus DRW-24B1ST/BLK/B/AS DVD/CD Writer ($19.98 @ OutletPC)
Operating System: Microsoft Windows 7 Home Premium SP1 (OEM) (64-bit) ($84.99 @ NCIX US)
Total: $1049.91
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2014-03-20 11:43 EDT-0400)
 
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officialexpert

officialexpert

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Your Graphics Card Power requirement = at least 600Watts (with two 8-pin external power connectors).Your Graphics Card has 8 pin * 2 Connectors.

Get any 600 + PSU will be ok for your system & Come with 2 * 8 pin Connectors for your GPU:bounce:
 
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ko888

ko888

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Feb 18, 2009
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There are two Revisions of the GIGABYTE GV-N770OC-4GD.

GV-N770OC-4GD (rev. 1.0)
• Power requirement: 600W (with one 6-pin and one 8-pin external power connectors)

GV-N770OC-4GD (rev. 2.0)
• Power requirement: 600W (with two 8-pin external power connectors)

For a system using a single GeForce GTX 770 graphics card NVIDIA specifies a minimum of a 600 Watt or greater system power supply that has a maximum combined +12 Volt continuous current rating of 42 Amps or greater and that has at least one 6-pin and one 8-pin PCI Express supplementary power connectors*. Some of the non-Reference Design GeForce GTX 770 cards have two 8-pin PCI Express supplementary power connectors (e.g. GIGABYTE GV-N770OC-4GD (rev. 2.0), MSI GTX 770 Lightning, MSI GTX 770 TwinFrozr Gaming).

* Minimum system power requirement based on a PC configured with an Intel Core i7 3.2GHz 130 Watt TDP processor.

A system power supply maximum combined +12 Volt continuous current rating of 37 Amps or greater is more realistic based on the actual measured power consumption of the GeForce GTX 770.
 
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