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Is this a good deal for a power supply?

Last response: in Components
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January 2, 2013 4:54:40 PM

I'm looking at this power supply

http://www.tigerdirect.com/applications/SearchTools/ite...

Got really good reviews and I only need it to add one 7850 to my system. Right now I'm using a psu from the bottom of the food chain, a Logisys rated at 480W max. But I don't think that even means constant 480W. Still had this thing for almost 2 years and its lasted, without a graphics card, I'm running integrated right now.


Thank you

More about : good deal power supply

a c 299 ) Power supply
a c 116 U Graphics card
January 2, 2013 6:53:10 PM

hercules643 said:
I'm looking at this power supply

http://www.tigerdirect.com/applications/SearchTools/ite...

Got really good reviews and I only need it to add one 7850 to my system. Right now I'm using a psu from the bottom of the food chain, a Logisys rated at 480W max. But I don't think that even means constant 480W. Still had this thing for almost 2 years and its lasted, without a graphics card, I'm running integrated right now.


Thank you


Hi - It might be a good deal, but most likely it is not.
They don't specify who the OEM is, & that in itself
should be a big warning flag. I'd stay away from it
unless you get some positive info specific to it.

Tom
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a c 1194 ) Power supply
a c 559 U Graphics card
January 2, 2013 8:13:05 PM

That's an Ultra Products OEM version Ultra LSP 700-Watt Power Supply most likely made by Andyson.
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Related resources
a c 299 ) Power supply
a c 116 U Graphics card
January 2, 2013 9:31:14 PM

hercules643 said:
I'm looking at this power supply

http://www.tigerdirect.com/applications/SearchTools/ite...

Got really good reviews and I only need it to add one 7850 to my system. Right now I'm using a psu from the bottom of the food chain, a Logisys rated at 480W max. But I don't think that even means constant 480W. Still had this thing for almost 2 years and its lasted, without a graphics card, I'm running integrated right now.


Thank you


Hi again - ko888 is prob right as Andyson makes most of the Ultra brand PSU's.
I didn't find a review of it though, so don't know if it's a good deal or not.

I guess for the price (and 3 yr warranty) it might be worth the gamble.

Tom
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a b ) Power supply
a b U Graphics card
January 2, 2013 9:34:15 PM

You really want to chance your 7850 on a $25 power supply?
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a c 299 ) Power supply
a c 116 U Graphics card
January 2, 2013 9:45:33 PM

popatim said:
You really want to chance your 7850 on a $25 power supply?


^ +1
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January 2, 2013 10:19:13 PM

You get what you pay for. Personally I wouldn't put a $25 PSU in my system no matter the rated wattage.

There is also the fact to consider that there are no markings on the PSU, once you get it hopefully there will be some compliance stickers on it that you could run the numbers on.

Lastly, it does not advertise any modern features and it still has a manual switch for 110V/220V which means that it is lacking quite a bit of the newer PSU circuitry.

Basically I wouldn't touch it with a 10ft pole (literally if it were plugged into a wall).
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a b ) Power supply
January 2, 2013 11:47:53 PM

Would not touch this. It is obviously very old technology and no matter what they sell it as, it will only pull 528W (if you are lucky) for the 12V rails. Probably no better than what you have or worse.

If you want a decent PSU to for the graphics card, here are some decent ones (I assume you are talking a new graphics card and not 2 in crossfire):

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

http://www.newegg.com/Product/Product.aspx?Item=N82E168...
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January 3, 2013 6:22:09 AM

redtailed said:
Would not touch this. It is obviously very old technology and no matter what they sell it as, it will only pull 528W (if you are lucky) for the 12V rails. Probably no better than what you have or worse.

If you want a decent PSU to for the graphics card, here are some decent ones (I assume you are talking a new graphics card and not 2 in crossfire):

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

http://www.newegg.com/Product/Product.aspx?Item=N82E168...



All of these psus are only 450 watts and the 7850 needs at least 500 watts I saw it on the AMD website. So how is this gonna be safe?
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January 3, 2013 6:24:31 AM

j2j663 said:
You get what you pay for. Personally I wouldn't put a $25 PSU in my system no matter the rated wattage.

There is also the fact to consider that there are no markings on the PSU, once you get it hopefully there will be some compliance stickers on it that you could run the numbers on.

Lastly, it does not advertise any modern features and it still has a manual switch for 110V/220V which means that it is lacking quite a bit of the newer PSU circuitry.

Basically I wouldn't touch it with a 10ft pole (literally if it were plugged into a wall).



What kind of modern features can a psu possibly have? It's just a power supply.
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a c 299 ) Power supply
a c 116 U Graphics card
January 3, 2013 12:13:13 PM

hercules643 said:
What kind of modern features can a psu possibly have? It's just a power supply.



If "it's just a power supply" then you should buy your $25 PSU
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a b ) Power supply
January 3, 2013 12:20:44 PM

hercules643 said:
All of these psus are only 450 watts and the 7850 needs at least 500 watts I saw it on the AMD website. So how is this gonna be safe?


Your system doesn't need 500W if you get a good supply - the GPU manufacturers overestimate assuming you will get a not very efficient supply or a crappy $25 supply that can't output the power it claims. The maximum the graphics card can go is 130W (that is its TDP), your processor is < 100W and everything else is < 100W. That is 330W with everything running flat out.
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January 3, 2013 5:07:41 PM

redtailed said:
Your system doesn't need 500W if you get a good supply - the GPU manufacturers overestimate assuming you will get a not very efficient supply or a crappy $25 supply that can't output the power it claims. The maximum the graphics card can go is 130W (that is its TDP), your processor is < 100W and everything else is < 100W. That is 330W with everything running flat out.



okay I really like that corsair cx 430. but are you sure it will be enough for my system? I have a phenom 2 x6 1090t black ed. with 1 Samsung 1.5 TB hardrive 5400 rpm. one dvd rw drive, 8gb of 1333mhz ram, and I want to run the msi twin frozer OC 7850 2gb card. I also want to have the option to throw I an ssd along with the 1.5 tb. Since my mobo only has one X16 slot, I will not be crossfiring as the other slots are only X4.
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a c 1194 ) Power supply
a c 559 U Graphics card
January 3, 2013 5:15:07 PM

hercules643 said:
What kind of modern features can a psu possibly have? It's just a power supply.

Modern Power Supply
• Automatic AC input voltage detection.
• Active PFC (i.e. Power Factor Correction).
• At least 95% of the power supply's total continuous power rating can be delivered on the +12 Volt rail(s).
• High AC to DC power conversion efficiency when rated at 45°C - 50°C ambient temperature.
• Power supply is actually able to deliver its continuous rated power capacity when operated at 45°C - 50°C ambient temperature.
• Very low electrical noise and ripple level on all rails.
• Tight voltage regulation on all rails.
• Modular output cables.
• Protection circuits for load, power, voltage, current, temperature, short circuits.
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a c 1194 ) Power supply
a c 559 U Graphics card
January 3, 2013 5:21:08 PM

hercules643 said:
All of these psus are only 450 watts and the 7850 needs at least 500 watts I saw it on the AMD website. So how is this gonna be safe?

For a system using a single reference design Radeon HD 7850 graphics card AMD specifies a minimum of a 500 Watt or greater 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!!! Total Combined Continuous Power/Current Available on the +12V Rail(s) rated @ 45°C - 50°C ambient temperature, is the most important factor.

Overclocking of the CPU and/or GPU(s) will 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 you are trying to achieve.

You may find power supplies on the market that supply more than enough Wattage to run the system. However, some of them lack Sufficient Amperage capacity on the critical +12 Volt rail, which is necessary to properly power the critical components in the system (i.e. CPU and GPUs). This is the reason why graphics card manufacturers overstate the power supply wattage, usually by at least 50 Watts, in an attempt to take into account some of those power supplies that have the weaker +12 Volt rail(s).
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a c 1194 ) Power supply
a c 559 U Graphics card
January 3, 2013 5:31:37 PM

hercules643 said:
okay I really like that corsair cx 430. but are you sure it will be enough for my system? I have a phenom 2 x6 1090t black ed. with 1 Samsung 1.5 TB hardrive 5400 rpm. one dvd rw drive, 8gb of 1333mhz ram, and I want to run the msi twin frozer OC 7850 2gb card. I also want to have the option to throw I an ssd along with the 1.5 tb. Since my mobo only has one X16 slot, I will not be crossfiring as the other slots are only X4.

The Corsair Builder Series CX430 (75-001666 / CP-9020046-NA), with its maximum combined +12 Volt continuous current rating of 32 Amps and with one (6+2)-pin PCI Express supplementary power connectors, is sufficient to power your system configuration with a single reference design Radeon HD 7850 graphics card.
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a b ) Power supply
January 3, 2013 5:33:09 PM

Your CPU has a 125W Thermal Design Power
The graphics card has 130W (say 150W since it is OC)
The rest < 100W
= 375W on +12V, and this is with everything maxed

Your current supply wouldn't cut it. I expect it only has 1 16A +12V rail = 192W

For those I listed:

Capstone +12V: 444W
Seasonic +12V: 408W
Corsair +12V: 384W

I would go for one of the other, but the Corsair CX430 should do. Your graphics card only needs one PCI-E 6-pin power cable, which all of the above provide.
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January 3, 2013 7:39:01 PM

redtailed said:
Your CPU has a 125W Thermal Design Power
The graphics card has 130W (say 150W since it is OC)
The rest < 100W
= 375W on +12V, and this is with everything maxed

Your current supply wouldn't cut it. I expect it only has 1 16A +12V rail = 192W

For those I listed:

Capstone +12V: 444W
Seasonic +12V: 408W
Corsair +12V: 384W

I would go for one of the other, but the Corsair CX430 should do. Your graphics card only needs one PCI-E 6-pin power cable, which all of the above provide.


Okay I really like the Corsair since its on sale right now for $35, but what if I wanted to overclock the graphics card and will the processor require more power when it goes turbo boost? it shuts off 3 cores and blasts the other 3 to like 3.6 ghz. I just wanna get a good reliable, efficient power supply without spending extra on more wattage, if I won't need it.
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a b ) Power supply
January 3, 2013 8:04:44 PM

One thing I will say about that Ultra, if I was going to ever use a 700w psu for $25, thats the best candidate I have seen to date. Its clearly an old design, but I wouldn't be surprised if it actually delivered somewhere close to 700w of halfway decent power. Not saying I would buy it. But given how many alleged 600w+ boxes of garbage you see in that price range, it at least has a chance.
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January 3, 2013 8:14:41 PM

lol alright alright I get it its not a good power supply I'm thinking the corsair cx 430 would be a better choice but if it will have enough juice for possibly Overclocking the video card, or since its already overclocked I shouldn't mess with it anyways right?
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a b ) Power supply
January 3, 2013 9:37:14 PM

hercules643 said:
lol alright alright I get it its not a good power supply I'm thinking the corsair cx 430 would be a better choice


It's more that the Ultra psu is an unknown. It could be a very good unit. But it's hard to know. That said, Ultra's are usually respectable units, but Corsair is a lock for great quality.

But if I had to bet money, I would bet the Ultra would be a serviceable unit. They are not great, but they are not bad either.
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a b ) Power supply
January 3, 2013 10:03:11 PM

So if you do a light overclock you are probably OK with the Corsair, but I would go with either the capstone or the Seasonic in that order - they are better quality supplies and have more wattage. I would error on the side getting a bit more than you currently need.
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January 5, 2013 12:41:37 AM

I want to get the cx430 but I need to make sure it will be enough for my setup. Since the msi 7850 twin frozer OC is already overclocked, I have decided not to mess with it, but where can I check the power consumption of the graphics card? I read someone else say its 218 w at max for the power ed version.
http://www.tomshardware.com/forum/338314-28-r7850-power...
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a c 1194 ) Power supply
a c 559 U Graphics card
January 5, 2013 2:04:49 AM

Actual measured power consumption of the MSI R7850 Power Edition 2GD5/OC graphics card only from techPowerUp.com's review:

MSI R7850 Power Edition 2GD5/OC

FurMark: 122 Watts

Gaming: 96 Watts

There should be around 10 Amps of spare capacity available on the +12 Volt rail of the CX430 to handle further overclocking.
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a b ) Power supply
January 5, 2013 2:20:31 AM

It is a mild OC of < 5%. Here is total system power measurements (at the wall, the PSU draw will be less) for the 7850 PE OC, which is more of an overclock than the 7850 you are considering. Unfortunately the review author doesn't list the test setup CPU etc, but you can see the draw is low, even when they OC it.

http://www.rwlabs.com/article.php?cat=&id=643&pagenumbe...
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a b ) Power supply
January 5, 2013 2:27:25 AM

The x6 1100 can draw 20 amps at load when fully overclocked. I would consider getting a little more power if your serious about overclocking.
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January 5, 2013 2:39:15 AM

redtailed said:
It is a mild OC of < 5%. Here is total system power measurements (at the wall, the PSU draw will be less) for the 7850 PE OC, which is more of an overclock than the 7850 you are considering. Unfortunately the review author doesn't list the test setup CPU etc, but you can see the draw is low, even when they OC it.

http://www.rwlabs.com/article.php?cat=&id=643&pagenumbe...



That graph makes no sense it shows the power draw is greater at idle than at load. I am not considering the Power Ed version, but the MSI R7850 Twin Frozr 2GD5/OC Radeon HD 7850 2GB. Any info on the power draw of this one? I will not be overclocking anything, So the Corsair Cx 430 will be enough?

http://www.newegg.com/Product/Product.aspx?Item=N82E168... (Radeon)


http://www.newegg.com/Product/Product.aspx?Item=N82E168... (PSU)
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a b ) Power supply
January 5, 2013 2:42:55 AM

I know, I noticed that. He just got his legend mixed up. The PE edition just has a beefier voltage regulator for overclocking the card. They should draw about the same power, maybe the PE a little more.
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a b ) Power supply
January 5, 2013 2:45:47 AM

Most computers use more power at idle. Didn't you know that?
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a b ) Power supply
January 5, 2013 3:00:46 AM

Maybe the reviewer is color-blind.

Well, anyhow, I think you have enough information and opinions to make a decision now. You may want to go with the Seasonic or Capstone for better quality that may help in future overclocking. You should enjoy that graphics card.

Good luck.
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