730W PSU --> 190W from the wall. Should I downgrade?

helloha

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Jun 4, 2012
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Hi,

I'm a video editor and not a gamer. I have a 730w "techsolo" PSU and I was wondering if I should downgrade since it is only pulling 190w from the wall under a full render load.

I primarily use a lot of internal HD's (6 in total) and have a Radeon 5770 with an i7 860.

The PSU is a non-name brand so I was thinking of perhaps buying a 400w with 80+ power efficiency.

Any ideas?

Thanks!
 

Terry1212

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Aug 3, 2009
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730W is the max that your PSU is capable of, that doesn't mean it will pull that much from the wall, even under load. It just pulls what it needs which, quite frankly, is a good thing because if it pulled 730W from the wall 24/7 your electric bill would be insane. Reliability on the other hand is a separate issue. You might want to get a quality name brand power supply if you can afford it.
 

helloha

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I was wondering if I would pull less then 190w if the PSU would be lower rated, more efficient. I'm trying to get the most power efficient system.

I read that you need to be at 50% to get the best efficiency for a 730w that would be around 350, and I'm at 190w...
 

wr6133

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Feb 10, 2012
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Best efficiency is in the middle 1/3rd (33-66%) so a quality brand 500W would infact suit your needs well 730W is total overkill even at 100% load on all parts i doubt your rig would suck more than 300W.

 
its a rebadged very poorly made 450w psu. it has a high fail rate and almost no protection against over volting. when it blows it will take the rest of the pc with it...
get rid of it asap. dont sell it on throw it in the bin/return it to the shop and get your money back.
 

If you had a good quality PSU, then I would say that you can kepe your current PSU. As previously stated, that PSU is a POS with a high fail rate. A great PSU with more than enough power for your rig and 80+ Bronze rated: http://www.newegg.com/Product/Product.aspx?Item=N82E16817371033&Tpk=ea-380d You'll be just over 50% utilization at full load and that will put you in the efficiency sweet spot for the PSU.
 

helloha

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Jun 4, 2012
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Thanks for all the reply's. I got that PSU as a temporary solution for my hackintosh when my macbook pro died, from a very shady shop down here in Brussels. I'll be getting that 380 Antec or something similar I suppose to get to that sweet spot! Not sure if i'll sell of the old one or not...
 

helloha

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Jun 4, 2012
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+1 indeed.

On another note, I checked out some 350-450 psu's from the big brands. Do you know of any that are modular? Can't seem to find any... I would need to hook up a bunch of hard drives so I need the sata power cables and perhaps some nice cable management.

Cheers!