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Power Supply


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28 replies to this topic

#1 Booh-kitty

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Posted 14 September 2011 - 01:32 PM

I'm purposely not putting my system specs here. The reason why is that I don't want someone to just tell me which one to get. I want to know what factors should be considered. I want to learn and be able to do this kind of thing on my own.

Obviously, I know I need to consider the size (will it fit in my case), where the fan is located and the connections should be compatible.

Do I need to consider volts, watts ect??

Thanks for your help.
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#2 cryptodan

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Posted 14 September 2011 - 01:58 PM

well without the rest of the system we will be unable to determine what exactly you need for power requirements.

However, with that said I use the following guidelines when buying / purchasing a power supply.


1) Power supply should be adequate enough for future upgrades and additions.

2) Should be of high quality and well recommended.

3) Size is important an ATX Power Supply should fit in any case that meets the ATX Specifications.

4) The location of the fan is not a requirement, because all power supplies are designed to suck air out. a) Does your case have a top mounted or bottom mounted supply spot?

5) Will you be moving to a foreign nation, and if so you should consider the 115v to 220v conversion switch on the back.

#3 Animal

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Posted 14 September 2011 - 02:02 PM

Add to what cryptodan says and I've always used an online Power Supply Calculator I use at least 3 different sites and average the results of those three and always rounding up.

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#4 killerx525

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Posted 14 September 2011 - 04:47 PM

Brands that are well recommended and are high quality are Corsair, Seasonic, Enermax, Silverstone, Sparkle Computer and XFX.

>Michael 
System1: CPU- Intel Core i7-5820K @ 4.4GHz, CPU Cooler- Noctua NH-D14, RAM- G.Skill Ripjaws 16GB Kit(4Gx4) DDR3 2133MHz, SSD/HDD- Samsung 850 EVO 250GB/Western Digital Caviar Black 1TB/Seagate Barracuada 3TB, GPU- 2x EVGA GTX980 Superclocked @1360/MHz1900MHz, Motherboard- Asus X99 Deluxe, Case- Custom Mac G5, PSU- EVGA P2-1000W, Soundcard- Realtek High Definition Audio, OS- Windows 10 Pro 64-Bit
Games: APB: Reloaded, Hours played: 3100+  System2: Late 2011 Macbook Pro 15inch   OFw63FY.png


#5 Layback Bear

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Posted 14 September 2011 - 05:25 PM

What ever those calculators give you for a answer get one with at least a 100w more. Doing so will work the power supply less their for cooler and they live longer. I use Corsair.

#6 killerx525

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Posted 14 September 2011 - 05:28 PM

What ever those calculators give you for a answer get one with at least a 100w more. Doing so will work the power supply less their for cooler and they live longer. I use Corsair.

It depends on what setup you have, i took a risk by using a 750W power supply to power up my 2 6950, originally i chose a 850W but was not in stock.

>Michael 
System1: CPU- Intel Core i7-5820K @ 4.4GHz, CPU Cooler- Noctua NH-D14, RAM- G.Skill Ripjaws 16GB Kit(4Gx4) DDR3 2133MHz, SSD/HDD- Samsung 850 EVO 250GB/Western Digital Caviar Black 1TB/Seagate Barracuada 3TB, GPU- 2x EVGA GTX980 Superclocked @1360/MHz1900MHz, Motherboard- Asus X99 Deluxe, Case- Custom Mac G5, PSU- EVGA P2-1000W, Soundcard- Realtek High Definition Audio, OS- Windows 10 Pro 64-Bit
Games: APB: Reloaded, Hours played: 3100+  System2: Late 2011 Macbook Pro 15inch   OFw63FY.png


#7 Layback Bear

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Posted 14 September 2011 - 06:07 PM

If I read things those AMD 6950 require a 500 power supply each (1000w total). I'm not saying it won't work but they won't work as they should if you gaming. The power supply will get very hot and most likely you will get BSOD. If the 500w number is correct then and I think it is. When a power supply goes bad it can take other things with it such as a mother board and those two 6950.
Specs.

http://www.newegg.com/Product/Product.aspx?Item=N82E16814150518

Edited by Layback Bear, 14 September 2011 - 06:10 PM.


#8 Booh-kitty

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Posted 14 September 2011 - 09:31 PM

Wow! I'm gonna really learn A LOT this time!

I'm not saying it won't work but they won't work as they should if you gaming.


I use a lot of heavy duty design software: AutoCAD, Photoshop, VIZ..........It's my understanding that a system that is good for design software is pretty much the same as it for gaming.

How does this affect the power supply?

Thanks for every one's input. It's much appreciated. :)
Whether you think you can or can't, either way you are right.
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#9 Layback Bear

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Posted 14 September 2011 - 11:06 PM

I have a simple brain so I will keep it simple. CAD is a very demanding program. Witch ever one you use. Photo every type of photo editing one does is very power demanding. I don't care what you are planing to do back it up with a power supply that will give you more than you need. If one is doing these kinds of things save money on ball point pens or toilet paper but not on a power supply. Once one has spent the money on CAD, photo editing and those two video cards the extra money on a power supply is chump change. You can't have to much power supply. Your system will only demand what is needed. If you system demands 600w your 1000w power supply will do the job with no sweat and no more. If your system only has a demand of 200w for what ever you are doing it will give it to it without sweating. A power supply can't and will not give your computer more power than it demands. All I'm trying to say is simple; when your system demands power to do what ever the power is their to be used. A power supply is no place to save money.

#10 killerx525

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Posted 15 September 2011 - 01:17 AM

I do long gaming session and it holds up fine and have not had one single BSOD yet and my system is overclocked. The 6950 does not draw 500W, the 6990 and the GTX590 draws roughly around 350W to 400W.

>Michael 
System1: CPU- Intel Core i7-5820K @ 4.4GHz, CPU Cooler- Noctua NH-D14, RAM- G.Skill Ripjaws 16GB Kit(4Gx4) DDR3 2133MHz, SSD/HDD- Samsung 850 EVO 250GB/Western Digital Caviar Black 1TB/Seagate Barracuada 3TB, GPU- 2x EVGA GTX980 Superclocked @1360/MHz1900MHz, Motherboard- Asus X99 Deluxe, Case- Custom Mac G5, PSU- EVGA P2-1000W, Soundcard- Realtek High Definition Audio, OS- Windows 10 Pro 64-Bit
Games: APB: Reloaded, Hours played: 3100+  System2: Late 2011 Macbook Pro 15inch   OFw63FY.png


#11 Layback Bear

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Posted 15 September 2011 - 08:29 AM

My mistake I should of said that a 500w power supply is recommend for one card. Thanks for correction.

#12 Layback Bear

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Posted 15 September 2011 - 09:20 AM

I have no idea what the load is on the OP computer is why I didn't mention (draw). Just going by the specs. One of AMD 6950 card recommend is a 500w power supply. Put two of them cards plus all the other stuff then put it under the load of CAD or heavy gaming IMHO is asking a all full lot of a 750w power supply. If the draw is 350 to 400 per card as you stated from those 2 cards when under heavy load that adds up to 700w to 800w. I always recommend being safe rather than sorry.

#13 killerx525

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Posted 15 September 2011 - 09:20 AM

My mistake I should of said that a 500w power supply is recommend for one card. Thanks for correction.

I would usually go for a 600W to ensure there is no insufficient in power. Lower end cards like the 6450 to 6670, i would use a 500W power supply.

>Michael 
System1: CPU- Intel Core i7-5820K @ 4.4GHz, CPU Cooler- Noctua NH-D14, RAM- G.Skill Ripjaws 16GB Kit(4Gx4) DDR3 2133MHz, SSD/HDD- Samsung 850 EVO 250GB/Western Digital Caviar Black 1TB/Seagate Barracuada 3TB, GPU- 2x EVGA GTX980 Superclocked @1360/MHz1900MHz, Motherboard- Asus X99 Deluxe, Case- Custom Mac G5, PSU- EVGA P2-1000W, Soundcard- Realtek High Definition Audio, OS- Windows 10 Pro 64-Bit
Games: APB: Reloaded, Hours played: 3100+  System2: Late 2011 Macbook Pro 15inch   OFw63FY.png


#14 Layback Bear

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Posted 15 September 2011 - 09:30 AM

To Booh kitty. Not knowing your specs makes it very hard for us to help. Reading the little chats between me and killerx shows how many opinions their are. Get more than min. of a quality brand if you wallet will allow. Extra power can't hurt your system but to little power can. Good mourning to all.

#15 Booh-kitty

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Posted 15 September 2011 - 10:23 AM

My Specs:

I'm giving the information requested at the NewEgg site for a new power supply.
  • CPU Intel Core 2 quad Q6600 2.4 GHz
  • MOB Manufactured by Acer:
    Chipset: Intel Q35 Express
    Data Bus Speed: 1066 MHz
  • RAM 4 GB installed, DDR II SDRAM , but I can go up to 8, DIMM 240 pin
  • HD 500 GB-standard- Serial ATA- 300-7200 rpm
  • Graphics ATI Radeon HD 2400 Pro, this is a video card with it's own fan, not
    an integrated one
  • Optical Drive DVD RW

Another thing I want to consider when buying a new power supply:

I'm going to build another computer with iCore technology. I want to get the best technology I can. I'd rather go ahead and spend the money now on a power supply that will work with the newer technology.

Right now, I don't know if the connections on the MOBO I will be buying will be the same as the connections on the one I have now. If they are not the same, I'd rather not spend a whole of money on a power supply that won't be compatible with a new system.

Thanks for all the input. :)

Edited by Booh-kitty, 15 September 2011 - 10:26 AM.

Whether you think you can or can't, either way you are right.
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