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Do I need more juice? - Page 2

post #11 of 16
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Quote:
Originally Posted by shinji2k View Post
Your PSU should be plenty for your system. You don't need anywhere near 511W like that calculator says. It's probably closer to 250W. But that Mushkin isn't a what I consider a quality PSU. Here's a review: http://www.hardwarecanucks.com/forum...ly-review.html. It will do what it says on the label but voltage regulation and ripple suppression aren't exactly class leading. I'm not a fan of the Topower built Mushkins at all. The 550 didn't do so well either: http://jonnyguru.com/modules.php?nam...=Story&reid=20

edit: I'm not saying to get rid of it, just next time you upgrade think about getting something a little better if you can afford it.

I read a review before I bought it that rated it high. A lot of people review hardware completely different. I have had no issues with it.
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Lucy
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post #12 of 16
When I was building my machine I put too much toys in it. Lights,fans.. Lights.. Fans More lights more fans and the first thing to be hit was my 3870. My computer posted and my monitor went blank. I added a second power supply in my system. (there is a site that will tell you how to do it. Basically you just jumper the motherboard on pin with a +5vdc and mount it up an vwalla......... More power. most gaming machines are safe 750 watts but thats the least.
    
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post #13 of 16
Quote:
Originally Posted by Spitphire View Post
I read a review before I bought it that rated it high. A lot of people review hardware completely different. I have had no issues with it.
Not to pick nits here, but was that review any good? There is really only one way to properly review a PSU and it involves some kind of load tester (a bank of resistors or preferably a PSU tester like a Chroma), an oscilloscope and a high temperature environment. PSU reviews especially are very hard to do properly because the equipment is very expensive and there are very few people you can trust to give a well done, thorough review.
i7 monsta
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i7 monsta
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post #14 of 16
Quote:
Originally Posted by Spitphire View Post
Can you give me a link to where you read that? Unfortunately my BIOS doesn't really have those options
Ha. Wish I could. It was on some google search.
post #15 of 16
Thread Starter 
Quote:
Originally Posted by shinji2k View Post
Not to pick nits here, but was that review any good? There is really only one way to properly review a PSU and it involves some kind of load tester (a bank of resistors or preferably a PSU tester like a Chroma), an oscilloscope and a high temperature environment. PSU reviews especially are very hard to do properly because the equipment is very expensive and there are very few people you can trust to give a well done, thorough review.
OK well I'm no electrical engineer so I don't know about oscilloscopes or Chromas. All I know is it looked solid, had all the features I needed and got good user reviews on Newegg and techPowerUP gave it an 8.8 and Techaddicts gave it an 8.5. Good enough for me.

http://www.techpowerup.com/reviews/M...-580_AP/5.html

http://www.techaddicts.net/reviews/m...p/mushkin.html


I did see though in the HardwareCanucks review, they stated that the voltage on the 12V rail would dip a lot. Would something like that drop my video card from x16 to x1?

I really don't want to have to buy a new PSU. Those are not fun things to buy. But if it will solve my problems I will happily do it.
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Lucy
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post #16 of 16
Like I said, you don't need to go buy another PSU. The PSU you have now can power your system just fine. It just, next time you do a major upgrade you should think about budgeting for something better. Anyways, the techpowerup reviews are fine. They show how a normal system with crossfired x1900xtx would load a PSU and that's a acceptable way to test a PSU, at least they have decent monitoring equipment. They only problem with that is that they were only hitting 450W AC at full load with that rig and with ~72% efficiency, that only loads the PSU up to ~325W DC which isn't anywhere close to testing the limits of the PSU. Even at 325W DC the 12V voltage fluctuated from about 12.3V at idle to ~11.85V at full load. That is quite a drop for only 325W. The numbers are still well within spec, but that is not a sign of good voltage regulation. It will only get worse the more load you put on it. And that techaddicts review is basically worthless.
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i7 monsta
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