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Is this PSU enough to support these parts?

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July 5, 2013 10:34:31 PM

I'm getting a Radeon 7870 and a Phenom II X4 965 BE, and I just need to know if my 550w PSU can handle both of these parts.
Also, what's the minimum wattage for both 7870 and the Phenom combined, as I might want to get a cheaper PSU from Corsair that's still enough to support the GPU + CPU.

More about : psu support parts

July 5, 2013 10:40:59 PM

That should be more than plenty for both of those. May I ask what model you had in mind? And do you plan on overclocking the CPU or GPU?
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a b ) Power supply
July 5, 2013 11:08:59 PM

you don't want to go to low on your power supply its actually better to have a bit higher because a lot of the power supply companys rate there PS 80 percent or higher when a lot of them are 75 percent or so on.

check out this link

http://www.eggxpert.com/forums/thread/323050.aspx
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a b ) Power supply
July 5, 2013 11:12:29 PM

read the chart I posted
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July 5, 2013 11:15:52 PM

430 is cutting it close. And on that 550W, I would highly suggest going with a better brand (Corsair, Seasonic, PC Power and Cooling, XFX, Antec). It'll be a bit more money, but the PSU is the heart of your PC. It goes and everything else is likely to go too.
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a b ) Power supply
July 5, 2013 11:18:18 PM

I would stay away from anything that isnt seasonic or corsair (Or some of the newer Thermaltake/rosswell/XFX/antec) the 430 should run it just fine, but it would be cutting it closer. The 965 take 125 watts and the gpu recommends 500 watts(complete over estimate)
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July 5, 2013 11:19:20 PM



Oh. I'm just going to do so stuff like play BF3, Bioshock Infinite and Crysis 3, do some video editing, 3-D animation. I know that overclocking eats up power, but I just want to know if the 430w can handle games like BF3, Bioshock infinite and still have some headroom.
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a b ) Power supply
July 5, 2013 11:20:08 PM

Yes I agree even corsair has a better PS unit and you can pick one up decent price at the egg for a 55o and if your PS unit fails it could take the rest of your system with it like board vid card mem ect its like playing suiscide with your pc parts a few bucks can save you lots of money in the end.
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a b ) Power supply
July 5, 2013 11:20:41 PM

Patrick Day said:
fatboytyler said:
430 is cutting it close. And on that 550W, I would highly suggest going with a better brand (Corsair, Seasonic, PC Power and Cooling, XFX, Antec). It'll be a bit more money, but the PSU is the heart of your PC. It goes and everything else is likely to go too.


Oh. I'm just going to do so stuff like play BF3, Bioshock Infinite and Crysis 3, do some video editing, 3-D animation. I know that overclocking eats up power, but I just want to know if the 430w can handle games like BF3, Bioshock infinite and still have some headroom.

It can handle them, there wont be much headroom though.
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a b ) Power supply
July 5, 2013 11:22:55 PM

The cpu alone is 125 watts and the 7870 radeon does require at least a 500 watt PS BY IT SELF
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July 5, 2013 11:24:17 PM

Gam3r01 said:
Patrick Day said:
fatboytyler said:
430 is cutting it close. And on that 550W, I would highly suggest going with a better brand (Corsair, Seasonic, PC Power and Cooling, XFX, Antec). It'll be a bit more money, but the PSU is the heart of your PC. It goes and everything else is likely to go too.


Oh. I'm just going to do so stuff like play BF3, Bioshock Infinite and Crysis 3, do some video editing, 3-D animation. I know that overclocking eats up power, but I just want to know if the 430w can handle games like BF3, Bioshock infinite and still have some headroom.

It can handle them, there wont be much headroom though.


But is it enough headroom that won't crash and fry my desktop?
Really sorry, since i'm on a pretty tight budget
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July 5, 2013 11:24:19 PM

Gam3r01 said:
Patrick Day said:
fatboytyler said:
430 is cutting it close. And on that 550W, I would highly suggest going with a better brand (Corsair, Seasonic, PC Power and Cooling, XFX, Antec). It'll be a bit more money, but the PSU is the heart of your PC. It goes and everything else is likely to go too.


Oh. I'm just going to do so stuff like play BF3, Bioshock Infinite and Crysis 3, do some video editing, 3-D animation. I know that overclocking eats up power, but I just want to know if the 430w can handle games like BF3, Bioshock infinite and still have some headroom.

It can handle them, there wont be much headroom though.


In my opinion its cutting it too close. Although you are right, it will handle it.
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a b ) Power supply
July 5, 2013 11:25:26 PM

johnnyb105 said:
The cpu alone is 125 watts and the 7870 radeon does require at least a 500 watt PS BY IT SELF


Recommended power, my 7750 "requires" 500 watts plus the 125 for my cpu and my whole systems runs on 493 watts actual.
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July 5, 2013 11:26:18 PM

fatboytyler said:
Gam3r01 said:
Patrick Day said:
fatboytyler said:
430 is cutting it close. And on that 550W, I would highly suggest going with a better brand (Corsair, Seasonic, PC Power and Cooling, XFX, Antec). It'll be a bit more money, but the PSU is the heart of your PC. It goes and everything else is likely to go too.


Oh. I'm just going to do so stuff like play BF3, Bioshock Infinite and Crysis 3, do some video editing, 3-D animation. I know that overclocking eats up power, but I just want to know if the 430w can handle games like BF3, Bioshock infinite and still have some headroom.

It can handle them, there wont be much headroom though.


In my opinion its cutting it too close. Although you are right, it will handle it.

Around how close?
I'm want to be specific, since I don't want to buy a decent PSU that won't destroy my desktop.
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a b ) Power supply
July 5, 2013 11:26:46 PM

Patrick Day said:
Gam3r01 said:
Patrick Day said:
fatboytyler said:
430 is cutting it close. And on that 550W, I would highly suggest going with a better brand (Corsair, Seasonic, PC Power and Cooling, XFX, Antec). It'll be a bit more money, but the PSU is the heart of your PC. It goes and everything else is likely to go too.


Oh. I'm just going to do so stuff like play BF3, Bioshock Infinite and Crysis 3, do some video editing, 3-D animation. I know that overclocking eats up power, but I just want to know if the 430w can handle games like BF3, Bioshock infinite and still have some headroom.

It can handle them, there wont be much headroom though.


But is it enough headroom that won't crash and fry my desktop?
Really sorry, since i'm on a pretty tight budget

It wont ruin anything, but its close. I would strongly recommend when you get the money buy a better psu, it will work for the time being. I had to jump from 500 to 700 watts on my build.
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July 5, 2013 11:28:55 PM

Final question is, would you recommend the 550w psu or the 430w psu?
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a b ) Power supply
July 5, 2013 11:30:53 PM

In this case the 430 over that specific 550. Just due to the brand and reliability thats my opinion and i would wait for a few more opinions too.
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a b ) Power supply
July 5, 2013 11:31:04 PM

at the end of the day you will have to choose what,s best for your system as always more is better less is waiting for chaos and mayham to happen in the 20 plus years I have been building computers I would rather have some elbow room to breath then just enough to manage because in the end just having enough to get by can always bite you in the ass. lol kudos night.
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July 5, 2013 11:32:29 PM

@Gam3r01 how do you know it runs at 500W? That seems incredibly high with just a 7750. My system with an i5 @ 1.32V and a 7950 with a heavy OC @ 1.250V draws just a bit over 500. Unless you X4 has a big OC.

As for you Patrick Day. If you went with a 500 - 650W power supply you'll have absolutely no issue with using up too much.
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a b ) Power supply
July 5, 2013 11:35:18 PM

fatboytyler said:
@Gam3r01 how do you know it runs at 500W? That seems incredibly high with just a 7750. My system with an i5 @ 1.32V and a 7950 with a heavy OC @ 1.250V draws just a bit over 500. Unless you X4 has a big OC.

As for you Patrick Day. If you went with a 500 - 650W power supply you'll have absolutely no issue with using up too much.


Using various power calculators I confirmed my system uses that much. The 7750 is OC to 900MHz, I have a single HDD but I have multiple LED fans in the case. The X4 isnt OC as of yet due to the stock cooler being as loud as a jet engine until I can get an EVO.
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July 5, 2013 11:41:34 PM

Gam3r01 said:
fatboytyler said:
@Gam3r01 how do you know it runs at 500W? That seems incredibly high with just a 7750. My system with an i5 @ 1.32V and a 7950 with a heavy OC @ 1.250V draws just a bit over 500. Unless you X4 has a big OC.

As for you Patrick Day. If you went with a 500 - 650W power supply you'll have absolutely no issue with using up too much.


Using various power calculators I confirmed my system uses that much. The 7750 is OC to 900MHz, I have a single HDD but I have multiple LED fans in the case. The X4 isnt OC as of yet due to the stock cooler being as loud as a jet engine until I can get an EVO.


I still find error in that calculation, but its whatever. GPU overclocks don't really draw that much more power until you start to crank up voltage. And the HDD wouldn't be but a few watts and the fans, even LED fans draw little to no power. As you said, you went with a 700W PSU which was a good decision so now you have plenty of headroom for overclocks and upgrading the PSU
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a b ) Power supply
July 5, 2013 11:44:27 PM

fatboytyler said:
Gam3r01 said:
fatboytyler said:
@Gam3r01 how do you know it runs at 500W? That seems incredibly high with just a 7750. My system with an i5 @ 1.32V and a 7950 with a heavy OC @ 1.250V draws just a bit over 500. Unless you X4 has a big OC.

As for you Patrick Day. If you went with a 500 - 650W power supply you'll have absolutely no issue with using up too much.


Using various power calculators I confirmed my system uses that much. The 7750 is OC to 900MHz, I have a single HDD but I have multiple LED fans in the case. The X4 isnt OC as of yet due to the stock cooler being as loud as a jet engine until I can get an EVO.


I still find error in that calculation, but its whatever. GPU overclocks don't really draw that much more power until you start to crank up voltage. And the HDD wouldn't be but a few watts and the fans, even LED fans draw little to no power. As you said, you went with a 700W PSU which was a good decision so now you have plenty of headroom for overclocks and upgrading the PSU

Yeah I dont really trust those, but hey, it gives a good guess of the usage with some headroom. My CX500 died for some reason that nobody could figure out so I got a brand new unopened one from warranty and am going to sell it to pay off this one. Getting the 700 on sale for 70 bucks and selling the corsair i got for 45 on sale for bout 55-60 sounds good to me.
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July 6, 2013 8:45:30 AM

Thanks for your hep guys!
I'm going to get the 550w for now, but i'll definitely upgrade to a CX 500w or something of the same tier.
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July 6, 2013 8:47:59 AM

Sorry for being such a noob to this site, but how do you select a Best Answer and mark this post as closed?
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Best solution

a c 1167 ) Power supply
July 6, 2013 9:18:23 AM

For a system using a single AMD reference design Radeon HD 7870 GHz Edition 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 28 Amps or greater and have 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.

Overclocking of the CPU and/or GPU(s) may require an additional increase to the maximum combined +12 Volt continuous current ratings, recommended above, to meet the increase in power required for the overclock. The additional amount required will depend on the magnitude of the overclock being attempted.

The SOLID GEAR Neutron Series 550W (SDGR-550E), with its maximum combined +12 Volt continuous current rating of 33 Amps and with two 6-pin PCI Express supplementary power connectors, is sufficient to power your system configuration with a single Radeon HD 7870 graphics card.

THE UL number on the PSU for tracing the OEM is linked to COONIX INC in California. The true OEM is hidden but my suspicion is that it is a generic low quality manufacturer.
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a b ) Power supply
July 6, 2013 9:40:09 AM

Patrick Day, might want to pay attention to what ko888 just said. He really knows what he is talking about.
Others have also mentioned reliability, or reliable power supplies. I have never heard of the Solid Gear PSU's so can't speak for them but just looking at the picture on Tiger it is apparent this is a relatively inexpensively constructed unit; The red switch to change power (110/240) tells me it doesn't have PFC.
You can find good deals on quality PSU's, they will be a little more then your choice, but stick with the leaders: Seasonic, Corsair, Rosewill CAPSTONE and HIVE series, XFX (made by Seasonic), Antec. Others on the forum can tell you of other top brands and the list that JohnnyB105 linked can be invaluable.
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a b ) Power supply
July 6, 2013 9:41:35 AM

Patrick Day said:
Sorry for being such a noob to this site, but how do you select a Best Answer and mark this post as closed?


At the bottom of each post is a little check box/button for selecting best answer.

Here's a link you might find interesting, infact all of the forum might appreciate it. From JohnnyGuru.com;
http://www.jonnyguru.com/forums/showthread.php?t=9746
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July 6, 2013 2:46:08 PM

ko888 said:
For a system using a single AMD reference design Radeon HD 7870 GHz Edition 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 28 Amps or greater and have 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.

Overclocking of the CPU and/or GPU(s) may require an additional increase to the maximum combined +12 Volt continuous current ratings, recommended above, to meet the increase in power required for the overclock. The additional amount required will depend on the magnitude of the overclock being attempted.

The SOLID GEAR Neutron Series 550W (SDGR-550E), with its maximum combined +12 Volt continuous current rating of 33 Amps and with two 6-pin PCI Express supplementary power connectors, is sufficient to power your system configuration with a single Radeon HD 7870 graphics card.

THE UL number on the PSU for tracing the OEM is linked to COONIX INC in California. The true OEM is hidden but my suspicion is that it is a generic low quality manufacturer.


Just asking, is a CX V2 430w enough for it too?
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a c 1167 ) Power supply
July 6, 2013 2:50:17 PM

Patrick Day said:
Just asking, is a CX V2 430w enough for it too?


It's electrically sufficient but it doesn't have enough PCI Express supplementary power connectors.
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July 6, 2013 3:01:52 PM

ko888 said:
Patrick Day said:
Just asking, is a CX V2 430w enough for it too?


It's electrically sufficient but it doesn't have enough PCI Express supplementary power connectors.

Oh, ok.

Anyone heard of a company called HEC? I just found this, and it looks OK, plus it's 80 +, so can anyone give me n opinion?
http://www.tigerdirect.com/applications/SearchTools/ite...
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a b ) Power supply
July 6, 2013 3:21:02 PM

HEC website shows it is rated to 25C, "Operating range 0-25C Non-Operating range 40-70C". In other words it will 'work' at room temperature. I couldn't find any reviews of this psu, but I would bet it won't put out 550 Watts. One (!) year warranty is a good warning sign, too.
What can you budget for a PSU? Give the forum an idea and we'll try to find something you can trust and will work.
Remember, the system you save may be your own.

If you can spend a little more (beg or borrow,it has worked for me) here are a couple nice units;
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
80plus Gold at 50C, 2 PCI-E connectors.
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
Seasonic. One of the best manufactures out there.
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
XFX, made by Seasonic. Has a $10 rebate.

Last thing: once you are satisfied and are through with this thread, be sure to pick a Best Answer. I haven't done much here but echo the sentiments of those before me so I suggest one of them; ko888, Gam3r, fatboy, johnnyB.
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July 6, 2013 3:46:14 PM

nostall said:
HEC website shows it is rated to 25C, "Operating range 0-25C Non-Operating range 40-70C". In other words it will 'work' at room temperature. I couldn't find any reviews of this psu, but I would bet it won't put out 550 Watts. One (!) year warranty is a good warning sign, too.
What can you budget for a PSU? Give the forum an idea and we'll try to find something you can trust and will work.
Remember, the system you save may be your own.

If you can spend a little more (beg or borrow,it has worked for me) here are a couple nice units;
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
80plus Gold at 50C, 2 PCI-E connectors.
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
Seasonic. One of the best manufactures out there.
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
XFX, made by Seasonic. Has a $10 rebate.

Last thing: once you are satisfied and are through with this thread, be sure to pick a Best Answer. I haven't done much here but echo the sentiments of those before me so I suggest one of them; ko888, Gam3r, fatboy, johnnyB.


I would highly suggest the XFX one. It will give you plenty of headroom and as nostall stated it is made by Seasonic which is the best in the industry. Not to mention its semi-modular (Unless I misread?) which makes cable management a breeze. Also, ko888 provided an incredibly instructional post and should should be used for learning and future reference.
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a c 1167 ) Power supply
July 6, 2013 4:33:18 PM

HEC uses cheap sleeve bearing fans in their PSU's. If you like fans that will develop a rattle after a while (i.e. when the lubricant for the sleeve bearing disappears) then buy a HEC made PSU.
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July 7, 2013 9:39:47 AM

Also, I can't find any "Best Answer" Check box under any post.
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a c 1167 ) Power supply
July 7, 2013 11:04:39 AM

Patrick Day said:
Also, I can't find any "Best Answer" Check box under any post.


Go to your browser's privacy settings and clear the cookies for this web site. You may have to exit and restart the browser for the changes to take effect.
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