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Are these power supplies sufficient?

post #1 of 11
Thread Starter 
My PSU blew out on me last night. I have had it running my PC pretty much every day for around 6 years now and I was going to upgrade it anyway due to a GPU purchase, so i'm not too disheartened.

This PSU will be for my signature computer but instead of the HD4830 I will have a HD6790.
Accoring to the PSUcalc website it would recommend me to have around 550+ watts. Of course I know that amps count for a lot also and reliability.

My old PSU was a Hiper Type-M (either 480W or 580W, I can't remember which one) with two +12v rails 18a and 20a.


Here is a list of PSU's I found that may be fitting for my new system:
http://www.ebuyer.com/product/257232
http://www.ebuyer.com/product/159920
http://www.ebuyer.com/product/235551
http://www.ebuyer.com/product/191824
http://www.ebuyer.com/product/147047
http://www.ebuyer.com/product/141006

I really am out of touch with PSU hardware these days and I really am not sure which to go for, they all seem pretty simular. I just want one to 'do the job'. If anyone wants to recommend any out of that list or any not out of that list (from that website, or any other British website) that would be much appreciated.
Chris-PC
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Saitek Eclipse II XFX Pro 650W Core Edition Corsair Carbide 300R Logitech MX518 
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Chris-PC
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Antec TruQuiet 140mm (X5) Antec TruQuiet 120mm (X2) Windows 10 Pro 64-bit 23" Samsung 2333HD 1080p 
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Saitek Eclipse II XFX Pro 650W Core Edition Corsair Carbide 300R Logitech MX518 
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post #2 of 11
My suggestion to you is http://www.ebuyer.com/product/245670
No need for more wattage than that.
post #3 of 11
Thread Starter 
Quote:
Originally Posted by Shub View Post
My suggestion to you is http://www.ebuyer.com/product/245670
No need for more wattage than that.
Hmm. Well it only has one +12v rail, which is a nice 30a, but still, one rail does seem a little low, or is that just me being out of touch?
It also has the word 'gamer' in it, which makes me shudder.
I can't seem to find any good reviews on this unit.
Chris-PC
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Antec TruQuiet 140mm (X5) Antec TruQuiet 120mm (X2) Windows 10 Pro 64-bit 23" Samsung 2333HD 1080p 
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Saitek Eclipse II XFX Pro 650W Core Edition Corsair Carbide 300R Logitech MX518 
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Chris-PC
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Intel Core i7-920 Gigabyte GA-EX58-UD3R HIS R9 280X IceQ X2 Turbo OC 6GB DDR3 SuperTalent 
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Samsung 250GB EVO SSD (Internal) 2TB WD Black HDD (Internal) 4TB WD My Book HDD (External) LG 18X DVD-RW 
CoolingCoolingOSMonitor
Antec TruQuiet 140mm (X5) Antec TruQuiet 120mm (X2) Windows 10 Pro 64-bit 23" Samsung 2333HD 1080p 
KeyboardPowerCaseMouse
Saitek Eclipse II XFX Pro 650W Core Edition Corsair Carbide 300R Logitech MX518 
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post #4 of 11
You don't really need to worry about the gamer nomenclature, it's a solid unit. The innards are pretty much identical to the well-established Antec Neo Eco 400C (which may never have been available in the UK if I remember correctly). It's made by SeaSonic. You also don't need to worry about the single rail vs. multi rail aspect, in the end it matters very little -- here's some further reading on that: http://hardwareaware.com/article/sin...laymans-terms/
post #5 of 11
Thread Starter 
Thankyou for the link and thank you to our PSU editor for that guide!

As far as 400W I really am not that convinced. Not to doubt your knowladge at all, it's just I used various PSU calculators and each one of them recommend me around 550W avarage for my new build. Why would you recommend 400W? It does seem awfully low to me.
Chris-PC
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Samsung 250GB EVO SSD (Internal) 2TB WD Black HDD (Internal) 4TB WD My Book HDD (External) LG 18X DVD-RW 
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Antec TruQuiet 140mm (X5) Antec TruQuiet 120mm (X2) Windows 10 Pro 64-bit 23" Samsung 2333HD 1080p 
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Saitek Eclipse II XFX Pro 650W Core Edition Corsair Carbide 300R Logitech MX518 
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Chris-PC
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Intel Core i7-920 Gigabyte GA-EX58-UD3R HIS R9 280X IceQ X2 Turbo OC 6GB DDR3 SuperTalent 
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Samsung 250GB EVO SSD (Internal) 2TB WD Black HDD (Internal) 4TB WD My Book HDD (External) LG 18X DVD-RW 
CoolingCoolingOSMonitor
Antec TruQuiet 140mm (X5) Antec TruQuiet 120mm (X2) Windows 10 Pro 64-bit 23" Samsung 2333HD 1080p 
KeyboardPowerCaseMouse
Saitek Eclipse II XFX Pro 650W Core Edition Corsair Carbide 300R Logitech MX518 
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post #6 of 11
Well, for one thing I have enough experience with PSUs to be able to tell what PSU most systems will run on

But I understand that's not tangible proof -- so here's the power consumption page of Anandtech's review of the Radeon 6790:
http://www.anandtech.com/show/4260/a...hort-at-150/14
As you can see if you scroll down a little, they measured a 265W power draw at the wall for their test system with a 6790 while running Furmark. Their system is pretty similar to yours, since they have a Core i7 920 running at 3.33 GHz.

The 265W wall measurement obviously includes the entire system, and not so obviously does not account for efficiency. In other words, for a 80 Plus Bronze rated PSU like the Antec HCG-400, you're looking at 82-85% efficiency. Let's use a 83.5% average just to simply the math. 265*0.835=221W, and that is roughly what their system was drawing from the PSU during the Furmark test. Since you have 30A@12V (i.e. 360W) at your disposal, I'd say it's more than enough

All that said, my goal is to save people money by not letting them get a PSU that's more powerful and more expensive than they will ever need. You're more than welcome to get a beefier PSU such as the Corsair TX650V2 you mentioned earlier, but it's almost twice as expensive and you'll never come close to needing all that power
post #7 of 11
Quote:
Originally Posted by Shub View Post
My suggestion to you is http://www.ebuyer.com/product/245670
No need for more wattage than that.
Agreed,

i7 920 @ stock will draw about 200W on load
6790 will draw a max of about 125W

A 400+ W psu will leave plenty of wattage for everything else and some overclocking room.
Edited by OrangeBunnies - 5/17/11 at 10:01am
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Hard DriveHard DriveCoolingOS
[256GB Samsung 840 Pro] [2x 3TB Green WD30EZRX JBOD] [Corsair H100i] [Windows 7 Pro 64-bit] 
MonitorKeyboardPowerCase
[23.6" Asus VE247H] [Razer BlackWidow] [Corsair HX850] [Corsair Carbide 500R White] 
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[Logitech G400] [SteelSeries QcK+] [SteelSeries Siberia V2 Headset] [Zalman ZM-MIC 1 Microphone] 
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CPUGraphicsRAMHard Drive
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post #8 of 11
Thread Starter 
http://www.ebuyer.com/product/257232

Well, upon second thoughts I feel why not spend an extra £20 on this (link above) which will pretty much mean I wont have to upgrade my PSU again in the future. It should be more than enough to last me for many years and upgrades, which I feel is worth the extra £20. I just didn't want to overkill you know, but I don't this it's TOO much more power. It's 650W with 51amps one a single +12V rail.

I thank you for your help so far, i'm a bit of a PSU newb. In a years time when I wish to upgrade my GPU and CPU I don't want to then have to buy a £50-60 PSU when I can buy one now and save £40 from what I was going to spend. £60 one time would be better then £40 + £60 at a later date.

I hope it's a wise decision..

The PSU you posted also only come with a 3 year warranty as opposed to the PSU I have linked which is a 5 year warranty.
Edited by Sin100 - 5/17/11 at 10:25am
Chris-PC
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Saitek Eclipse II XFX Pro 650W Core Edition Corsair Carbide 300R Logitech MX518 
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Chris-PC
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Samsung 250GB EVO SSD (Internal) 2TB WD Black HDD (Internal) 4TB WD My Book HDD (External) LG 18X DVD-RW 
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Antec TruQuiet 140mm (X5) Antec TruQuiet 120mm (X2) Windows 10 Pro 64-bit 23" Samsung 2333HD 1080p 
KeyboardPowerCaseMouse
Saitek Eclipse II XFX Pro 650W Core Edition Corsair Carbide 300R Logitech MX518 
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post #9 of 11
Let me suggest a slightly different unit then: http://www.ebuyer.com/product/241554
Internally, it's identical to the Corsair TX650V2. Both are made by SeaSonic and perform great. Both have a 5-year warranty as well (strangely -- in the US the XFX units have a 3-year warranty), but the XFX will cost you £10 less
I agree that 650W is a very safe amount of power. It's enough power for a system with any video card you could think of, and a good number of dual video card setups.
post #10 of 11
Thread Starter 
I was about to buy the Corsair until I saw the XFX you posted, wow, pretty much the same performance (slightly better) and a for quite a lot less. If I ever see you I owe you a few pints!
Chris-PC
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Intel Core i7-920 Gigabyte GA-EX58-UD3R HIS R9 280X IceQ X2 Turbo OC 6GB DDR3 SuperTalent 
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Samsung 250GB EVO SSD (Internal) 2TB WD Black HDD (Internal) 4TB WD My Book HDD (External) LG 18X DVD-RW 
CoolingCoolingOSMonitor
Antec TruQuiet 140mm (X5) Antec TruQuiet 120mm (X2) Windows 10 Pro 64-bit 23" Samsung 2333HD 1080p 
KeyboardPowerCaseMouse
Saitek Eclipse II XFX Pro 650W Core Edition Corsair Carbide 300R Logitech MX518 
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SteelSeries QcK+ (XL) Epiphany Acoustics EHP-02 AMP + DAC Audio-Technica ATH-M50X 
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Chris-PC
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Intel Core i7-920 Gigabyte GA-EX58-UD3R HIS R9 280X IceQ X2 Turbo OC 6GB DDR3 SuperTalent 
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Samsung 250GB EVO SSD (Internal) 2TB WD Black HDD (Internal) 4TB WD My Book HDD (External) LG 18X DVD-RW 
CoolingCoolingOSMonitor
Antec TruQuiet 140mm (X5) Antec TruQuiet 120mm (X2) Windows 10 Pro 64-bit 23" Samsung 2333HD 1080p 
KeyboardPowerCaseMouse
Saitek Eclipse II XFX Pro 650W Core Edition Corsair Carbide 300R Logitech MX518 
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SteelSeries QcK+ (XL) Epiphany Acoustics EHP-02 AMP + DAC Audio-Technica ATH-M50X 
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