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How good is this PSU for a non-oc setup? *Changed question*

Spike

Spike

Diamond Member
So I picked up one of these psu's for about $13 shipped a few weeks ago and now I have a question. My lanbox is in the sig below and I want to know if this psu can run that and free up my Antec NeoHE 500. In case you don't want the look below the specs of the pc are:

e6550 @ stock
2x1gb G.Skill DDR2-400
8800GTS 512 @ stock
DVD drive (no burner)
250GB Seagate

I assume a 400 watt (350w continuous) would be more than enough for the base system but I'm not sure about that 8800GTS 512. Any thoughts? I would love to free up the Neo for another pc but if I can't then I can't. My only other option is the Aspire 500w I have but considering the "quality" there I might as well light my lanbox on fire myself.

Thanks

EDIT*
Ok, so it looks like the FSP has slightly too low of power to safely run the setup. So here is a new question: would an OCZ StealthXStream 500W work for the setup? I know they are not the greatest psu's but can I use it without blowing up my lanbox? If so I can take out the neohe, use the fsp as a testing psu, and toss the aspire.

Thanks
 
Originally posted by: yh125d
should have no problem
Click to expand...

I hope not. I know FSP makes decent units but I still worry that 8800GTS 512 will pull too much juice when gaming. Anyone know of a review for this model of PSU? What about the actual power needs of an 8800GTS 512?

I'm all about running almost anything on my Earthwatts 500 but this FSP is an unknown to me.

thanks
 
Check out this article from the AT homepage - Link

Should give you an idea about what your card does under load. You should be fine.

Edit: Fixed link
 
That is a 350 watt power supply with a combined 24A on 12v or 288watts. Say 80% efficiency at 50C and you get something like 230 watts unless you keep you power supply at room temperature to keep it at peak. You are definitely pushing the power supply. On the boarder side of things.

http://techreport.com/r.x/radeon-hd-4830/power-load.gif

Shows 8800gt and 9800gtx.
 
Originally posted by: Azn
Say 80% efficiency at 50C and you get something like 230 watts unless you keep you power supply at room temperature to keep it at peak.
Click to expand...

That's not how it works 😉 Efficiency only affects how much power the PSU will draw from the wall.

 
Originally posted by: schneiderguy
Originally posted by: Azn
Say 80% efficiency at 50C and you get something like 230 watts unless you keep you power supply at room temperature to keep it at peak.
Click to expand...

That's not how it works 😉 Efficiency only affects how much power the PSU will draw from the wall.
Click to expand...

Yes, schneiderguy is right. Efficiency measures how effectively the PSU converts the AC power from the wall/outlet into DC power for your computer. So if you have a 500w PSU at max load that is 80% efficient, it will be drawing 625w from the wall outlet. If the PSU was only 50% efficient it would be drawing 1000w from the wall for example, but still delivering the full 500w to the components on the DC side (your computer). These are things I myself have just recently learned.
 
Originally posted by: schneiderguy
Originally posted by: Azn
Say 80% efficiency at 50C and you get something like 230 watts unless you keep you power supply at room temperature to keep it at peak.
Click to expand...

That's not how it works 😉 Efficiency only affects how much power the PSU will draw from the wall.
Click to expand...

That's not what I was talking about.

350Watt continuous power is only achieved at certain temperature. In case of Spike's power supply it is achieved at 30C. At higher temperature it can not sustain this continuous power. Power supply runs anywhere from 40-60C. IF you actually read what I was trying to say. 😱
 
Originally posted by: Azn
Originally posted by: schneiderguy
Originally posted by: Azn
Say 80% efficiency at 50C and you get something like 230 watts unless you keep you power supply at room temperature to keep it at peak.
Click to expand...

That's not how it works 😉 Efficiency only affects how much power the PSU will draw from the wall.
Click to expand...

That's not what I was talking about.

350Watt continuous power is only achieved at certain temperature. In case of Spike's power supply it is achieved at 30C. At higher temperature it can not sustain this continuous power. Power supply runs anywhere from 40-60C. IF you actually read what I was trying to say. 😱
Click to expand...

Your post made it sound like you were talking about efficiency, not temperature de-rating. *shrug*
 
Originally posted by: schneiderguy
Originally posted by: Azn
Originally posted by: schneiderguy
Originally posted by: Azn
Say 80% efficiency at 50C and you get something like 230 watts unless you keep you power supply at room temperature to keep it at peak.
Click to expand...

That's not how it works 😉 Efficiency only affects how much power the PSU will draw from the wall.
Click to expand...

That's not what I was talking about.

350Watt continuous power is only achieved at certain temperature. In case of Spike's power supply it is achieved at 30C. At higher temperature it can not sustain this continuous power. Power supply runs anywhere from 40-60C. IF you actually read what I was trying to say. 😱
Click to expand...

Your post made it sound like you were talking about efficiency, not temperature de-rating. *shrug*
Click to expand...

No my post specifies the temperature at 50C. What else could I be talking about? Just because I use the word efficiency? I'm not that big of noob. Give me a break. 😛
 
Originally posted by: Azn
That is a 350 watt power supply with a combined 24A on 12v or 288watts. Say 80% efficiency at 50C and you get something like 230 watts unless you keep you power supply at room temperature to keep it at peak.
http://techreport.com/r.x/radeon-hd-4830/power-load.gif

Shows 8800gt and 9800gtx.
Click to expand...

Seemed like you were talking about efficiency to me too. You mention a 350 watt power supply having 288 watts on the 12v rail. Then you mention 80% efficiency and 230 watts, when 230 watts just happens to be 80% of 288w. So it's clear you took 80% of the rated 288w and came up with 230w, yet there would be no reason to do that. That is why the correction came into play.
 
Sorry for the confusion but I said 80% efficiency at 50C. Probably used the wrong word for it. When I should have said 80% of continuous power or something of that nature.
 
While that FSP may be able to get by on your system you need a bit more power. Now the overall wattage on the PSU is fine. The problem is it doesn't put as much of that power to the 12V rails as newer design does. You need about 26A to 28A on teh combined 12V rails. I beleive the 400-PN is somewhere in the range of 24A to 26A. I've got one in my otehr system.

I'm sorry to hear that your only other option is an Aspire. They happen to be among the top 5 worst PSUs you can have.
 
Thanks for all the answers guys, I'll probably leave the NeoHE 500 in place for now since the FSP sounds a bit underpowered.

Originally posted by: mpilchfamily
While that FSP may be able to get by on your system you need a bit more power. Now the overall wattage on the PSU is fine. The problem is it doesn't put as much of that power to the 12V rails as newer design does. You need about 26A to 28A on teh combined 12V rails. I beleive the 400-PN is somewhere in the range of 24A to 26A. I've got one in my otehr system.

I'm sorry to hear that your only other option is an Aspire. They happen to be among the top 5 worst PSUs you can have.
Click to expand...

Well, I want to toss the Apsire and I may do that now since the FSP will be staying out of a system so I can use it as a test psu.

What do you guys think of the OCZ StealthXStream 500w? I forgot that I also have one of those sitting around now (still inside one of my spare cases so I did not notice it) and besides a slight whine from the fan and freaking short cables it works well. The cables won't be an issue since the case is so small but does it have the power to safely run the lanbox I'm asking about? I really like that neopower and want to use it in a new build but I don't want to kill by box either due to a bad psu.

Thanks again for all the help
 
I'm currently using an OCZ StealthXStream 500w to power my system:

AMD Phenom 9850 @ 2.75 ghz
4 gb ram
8800gt
2 hdd
2 dvd

Everything is working perfectly stable, and draws more juice than the setup you intend to use it with.
 
Originally posted by: Flipped Gazelle
I'm currently using an OCZ StealthXStream 500w to power my system:

AMD Phenom 9850 @ 2.75 ghz
4 gb ram
8800gt
2 hdd
2 dvd

Everything is working perfectly stable, and draws more juice than the setup you intend to use it with.
Click to expand...

Thats good to hear. I may switch over to the OCZ in the very near future.

Thanks for the info.
 
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