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PSU question?


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8 replies to this topic

#1 Torn05

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Posted 13 February 2011 - 08:15 PM

So I consider myself to know a moderate amount about computers. However, know very little of Power Supplies.
This is the PSU I'm looking at, as it is cheap and well rated.
http://www.newegg.com/Product/Product.aspx?Item=17-709-027&SortField=0&SummaryType=0&Pagesize=10&PurchaseMark=&SelectedRating=3&VideoOnlyMark=False&VendorMark=&IsFeedbackTab=true&Keywords=(keywords)&Page=1#scrollFullInfo
I have no clue how many connectors it has and what types they are. I know video cards need either 6 or 8 pin depending on the card, motheroards need 20-24 pin, 8 pin for CPU and such but I know little of voltages. I want to run a GTX 460 eventually so would this suffice? Any info is good info when it comes to PSUs with me.

Edited by Torn05, 13 February 2011 - 08:17 PM.


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#2 the_patriot11

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Posted 13 February 2011 - 08:21 PM

I have bought one sunbeam PSU for a customer computer, and regretted it, am now having to replace it, and Ive seen several others like it-would not trust that brand. You would be better off going with a coolermaster, ANTEC, Corsair, or OCZ PSU. What are you trying to power with it?

Edited by the_patriot11, 13 February 2011 - 08:22 PM.

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Primary system: Motherboard: ASUS M4A89GTD PRO/USB3, Processor: AMD Phenom II x4 945, Memory: 16 gigs of Patriot G2 DDR3 1600, Video: AMD Sapphire Nitro R9 380, Storage: 1 WD 500 gig HD, 1 Hitachi 500 gig HD, and Power supply: Coolermaster 750 watt, OS: Windows 10 64 bit. 

Media Center: Motherboard: Gigabyte mp61p-S3, Processor: AMD Athlon 64 x2 6000+, Memory: 6 gigs Patriot DDR2 800, Video: Gigabyte GeForce GT730, Storage: 500 gig Hitachi, PSU: Seasonic M1211 620W full modular, OS: Windows 10.

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#3 Torn05

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Posted 13 February 2011 - 08:30 PM

Disk Drive: LG DVD Burner---- http://www.newegg.com/Product/Product.aspx?Item=N82E16827136177
HDD: Samsung 500GB----- http://www.newegg.com/Product/Product.aspx?Item=N82E16822152181
MoBo: ASRock 880GXH---- http://www.newegg.com/Product/Product.aspx?Item=N82E16813157200
RAM: DDR3 4GB 1600---- http://www.newegg.com/Product/Product.aspx?Item=N82E16820211409
And a Phenom II x4 955 combo with a 5770. http://www.newegg.com/Product/Product.aspx?Item=N82E16814161333

As I said I plan to go to a better GPU eventually and thanks for the help.

#4 Blaze413

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Posted 13 February 2011 - 09:50 PM

http://www.newegg.com/Product/Product.aspx?Item=N82E16817182067&cm_re=750w_power_supply-_-17-182-067-_-Product
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139006&cm_re=750w_power_supply-_-17-139-006-_-Product
http://www.newegg.com/Product/Product.aspx?Item=N82E16817182173&cm_re=700w_power_supply-_-17-182-173-_-Product

here are 3 good options the corsair being the best, but i havent had any problems with rosewill psu's either and they are cheaper///but the best quality one is the corsair

#5 dpunisher

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Posted 14 February 2011 - 10:53 AM

Just some things to consider when buying a PSU.

1. How is the output rated? Max watts is what a cheap PSU puts out just before it blows up and takes the rest of your components with it. A good quality PSU can output "max watts" continuously without frying itself or your components.

2 Efficiency. How much energy is wasted? Wasted energy=heat. Even the "top of the line" Sunbeam runs between 76-78% efficiency, which sucks as newer high end units are up in the 87-91% range now. A clue: Does it have a "voltage switch" on the rear of the PSU? If it does, it is an old obsolete design. That model of Sunbeam you have listed doesn't even have an efficiency rating (that I could find).

3: What are the 12V rails rated at as compared to total output? A good PSU can output 90+% of its total watts on the 12V rails, as 12V is the most heavily used. On a modern system, the 3.3V and 5V rails supply very little power. You tend to see big numbers on the 3.3/5V rails on low end/older designs.

Sunbeam 680:+3.3V@30A, +5V@28A, +12V1@20A, +12V2@20A, -12V@0.3A, +5VSB@2.5A

40amps max (480watts) on the 12V
28amps max (140 watts) on the 5V
30amps max (99 watts) on the 3.3V

Corsair 650TX +3.3V@24A, +5V@30A, +12V@52A, -12V@0.8A, +5VSB@3.0A

52amps max (624watts) on the 12V
30amps max (150watts) on the 5V
24amps max (79watts) on the 3.3V

Seasonic X-650 Gold

54amps max (648watts) on the 12V
25amps max (125watts total on the 5V and 3.3V combined) on the 5V
25amps max on 3.3V (see line above)


You can see the trend, from older/cheaper design to newer design as far as the 12V is concerned. Sunbeam is the highest rated PSU, but has the lowest 12V output.

Best sites to check out PSU reviews, HardOCP/JonnyGuru/Hardwaresecrets.

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#6 Torn05

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Posted 16 February 2011 - 03:57 PM

Aww, that sucks. I almost had a really low priced budget build. Thanks guys, this probably saved me from dealing with RMA issues and/or destroying my PC.

#7 Blaze413

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Posted 16 February 2011 - 11:18 PM

what psu was it...u may be able to order it ureself from newegg and save some cash...just wasnt sure

#8 the_patriot11

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Posted 17 February 2011 - 12:20 AM

what psu was it...u may be able to order it ureself from newegg and save some cash...just wasnt sure


He hasnt purchased it yet, he was thanking us for saving him potential problems in the future.

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Primary system: Motherboard: ASUS M4A89GTD PRO/USB3, Processor: AMD Phenom II x4 945, Memory: 16 gigs of Patriot G2 DDR3 1600, Video: AMD Sapphire Nitro R9 380, Storage: 1 WD 500 gig HD, 1 Hitachi 500 gig HD, and Power supply: Coolermaster 750 watt, OS: Windows 10 64 bit. 

Media Center: Motherboard: Gigabyte mp61p-S3, Processor: AMD Athlon 64 x2 6000+, Memory: 6 gigs Patriot DDR2 800, Video: Gigabyte GeForce GT730, Storage: 500 gig Hitachi, PSU: Seasonic M1211 620W full modular, OS: Windows 10.

If I don't reply within 24 hours of your reply, feel free to send me a pm.


#9 Blaze413

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Posted 23 February 2011 - 10:59 PM

ooooo my bad lol




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