Is this a good Power Supply
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Last response: in Components
Matthew Winters
June 22, 2013 7:17:53 AM
KnowItAll
June 22, 2013 7:22:26 AM
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The simple answer is no, at least not according to AMD
http://www.amd.com/us/products/desktop/graphics/7000/78...
600W power supply (or greater) with two 75W 6-pin PCI Express power connectors recommended for AMD CrossFire™ technology
http://www.guru3d.com/articles_pages/amd_radeon_hd_7850...
Radeon HD 7850 - On your average system the card requires you to have a 500 Watt power supply unit and 650 Watt if you go with two cards in Crossfire mode.
Radeon HD 7870 - On your average system the cards require you to have a 550 Watt power supply unit as minimum and 700 Watt if you go with two cards in Crossfire mode.
If you are going to overclock the GPU or processor, then we do recommend you purchase something with some more stamina
http://www.amd.com/us/products/desktop/graphics/7000/78...
Quote:
500W (or greater) power supply with one 75W 6-pin PCI Express power connector recommended7600W power supply (or greater) with two 75W 6-pin PCI Express power connectors recommended for AMD CrossFire™ technology
http://www.guru3d.com/articles_pages/amd_radeon_hd_7850...
Quote:
Here is Guru3D's power supply recommendation:Radeon HD 7850 - On your average system the card requires you to have a 500 Watt power supply unit and 650 Watt if you go with two cards in Crossfire mode.
Radeon HD 7870 - On your average system the cards require you to have a 550 Watt power supply unit as minimum and 700 Watt if you go with two cards in Crossfire mode.
If you are going to overclock the GPU or processor, then we do recommend you purchase something with some more stamina
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Matthew Winters
June 22, 2013 8:21:32 AM
KnowItAll said:
Probably no, if your too embarrased to tell us what this mystery psu is.I'm never amazed at some of the questions I see on here. You haven't even told us what cpu or other components your powering.
"Is my car gonna be fast"? "It's not a Ferrari".
Wow.
I apologise, here is te cpu and motherboard
CPU
AMD FX-4350 Quad Core CPU (4.3/4.2GHZ - 4MB CACHE/AM3+)
Motherboard
ASUS® M5A78L-M/USB3 (M-ATX, DDR3, USB 3.0, 3Gb/s)
Hope this helps.
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KnowItAll
June 22, 2013 8:38:12 AM
Matthew Winters
June 22, 2013 1:19:53 PM
dirtyferret said:
KnowItAll said:
Even if that generic psu was an actual 450w, you would be really pushing it. Get yourself a good quality 500w like a Antec, Corsair, XFX, FSP, etc. If it's not at least 80+ bronze certified, don't buy it.
i love the irony in your name when you post your opinions.

the latter comment is almost as good as the former
The PC won't be overclocked.
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KnowItAll
June 22, 2013 1:59:14 PM
For a system using a single AMD reference design Radeon HD 7850 graphics card AMD specifies a minimum of a 500 Watt or greater system power supply. The power supply should also have a maximum combined +12 Volt continuous current rating of 27 Amps or greater and have at least one 6-pin PCI Express supplementary power connector. Some of the non-reference design Radeon HD 7850 graphics cards require at least two 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.
A Seasonic S12II Bronze 380 Watt (SS-380GB) PSU would do the job.
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.
A Seasonic S12II Bronze 380 Watt (SS-380GB) PSU would do the job.
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Matthew Winters
June 24, 2013 1:57:28 AM
toyftw said:
Matthew Winters said:
Will a 450w Psu be enough to support the AMD Radeon HD7850. It's not a Corsair.Hi - what brand & model is this power supply. It might be fine, pls post brand/model so we can evaluate.
Thx
The website i'm buying off doesn't say the brand, this is what it says:
450W Quiet 80 PLUS Dual Rail PSU + 120mm Case Fan
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Best solution
Matthew Winters said:
toyftw said:
Matthew Winters said:
Will a 450w Psu be enough to support the AMD Radeon HD7850. It's not a Corsair.Hi - what brand & model is this power supply. It might be fine, pls post brand/model so we can evaluate.
Thx
The website i'm buying off doesn't say the brand, this is what it says:
450W Quiet 80 PLUS Dual Rail PSU + 120mm Case Fan
Hi - ko is correct, itappears to be an FSP unit, and depending on exactly which
atx450 (more than 1) it is, it has 30 or 34a on the +12v rails. Even the lower number
will power you system OK. There are a lot worse OEM's out there than FSP, so
I'd say you are good to go with that unit.
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KnowItAll
June 24, 2013 6:01:10 AM
g-unit1111 said:
KnowItAll and dirtyferrett: Both of you stop with the personal attacks. I've deleted the posts in question. I would apologize, but all I did was try to help the guy who started the thread. Apparently he started cause he didn't like my name? I guess he didn't get the sarcasm?
I simply recommended a 500w psu as did the others on the forum and he started attacking me for that.
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Matthew Winters
June 24, 2013 7:37:13 AM
toyftw said:
Matthew Winters said:
toyftw said:
Matthew Winters said:
Will a 450w Psu be enough to support the AMD Radeon HD7850. It's not a Corsair.Hi - what brand & model is this power supply. It might be fine, pls post brand/model so we can evaluate.
Thx
The website i'm buying off doesn't say the brand, this is what it says:
450W Quiet 80 PLUS Dual Rail PSU + 120mm Case Fan
Hi - ko is correct, itappears to be an FSP unit, and depending on exactly which
atx450 (more than 1) it is, it has 30 or 34a on the +12v rails. Even the lower number
will power you system OK. There are a lot worse OEM's out there than FSP, so
I'd say you are good to go with that unit.
Thank you so much!
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KnowItAll
June 24, 2013 12:17:28 PM
KnowItAll said:
Of course he's guessing. Nobody could possibly tell from the information you have given it's a FSP power supply and I highly doubt it.It's an educated best guess based on the brand (i.e. PC Specialist Ltd., UK) of system that the OP purchased. I know that specific boutique brand uses FSP group PSUs as their base models in their lower range system offerings. It's 80 PLUS certified so by looking at FSP's 80 PLUS certified PSU models you can get a good idea of what the combined +12V continuous current range will be.
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KnowItAll said:
g-unit1111 said:
KnowItAll and dirtyferrett: Both of you stop with the personal attacks. I've deleted the posts in question. I would apologize, but all I did was try to help the guy who started the thread. Apparently he started cause he didn't like my name? I guess he didn't get the sarcasm?
I simply recommended a 500w psu as did the others on the forum and he started attacking me for that.
If you want we can discuss this through PM. No point in making it public.
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KnowItAll
June 25, 2013 7:13:05 AM
KnowItAll said:
Ok guys. I just can't imagine a company paying for high end FSP parts and putting the name Hi-ko on it, makes no sense.That's like a no-name company buying Ferrari's and putting Kung-pow on them.
Hi again - FSP is like CWT in that they can mfg almost any level of quality a brand
contracts for. It is highly unlikely they used "high end" parts in a
£29 at retail PSU.
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toyftw said:
KnowItAll said:
Ok guys. I just can't imagine a company paying for high end FSP parts and putting the name Hi-ko on it, makes no sense.That's like a no-name company buying Ferrari's and putting Kung-pow on them.
Hi again - FSP is like CWT in that they can mfg almost any level of quality a brand
contracts for. It is highly unlikely they used "high end" parts in a
£29 at retail PSU.
+1
knowledge and common sense is a rare trait, luckily for the OP toy posses both
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