Discuss (17) -
Posted at 7:46 AM on Thursday 02/7/08 by
Ben
Hotness UNHOT
Buy.com has the OCZ OCZ500SXS StealthXStream 500W Power Supply for $60 - $20 rebate [Exp 2/21] = $40 with free shipping. Even at peak loads, the 500W StealthXStream remains virtually silent and excludes flashy LEDs ensuring the power supply is not seen or heard. [BizRate]
  • 1
    DogFart - Posted 9:25 am PST 02/7/08 (482 Posts)  Report Spam

    /CUT/


    /PASTE/

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  • 2
    DogFart - Posted 9:27 am PST 02/7/08 (482 Posts)  Report Spam

    looks like ben is testing ChowderWiz17 with all his PS posts.


    keep up the great work ben!

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  • 3
    Electrikal - Posted 9:37 am PST 02/7/08 (269 Posts)  Report Spam

    \cry

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  • 4
    CompWiz17 - Posted 9:59 am PST 02/7/08 (4897 Posts)  Report Spam

    unfortunately, this isn't all that great of a power supply. This power supply is manufactured by FSP, a manufacturer known for their output voltage ripple problems, and they don't disappoint with this PSU.

    Ripple on the output power is a silent killer that can destroy many of your components. It stresses and can cause premature failure of your voltage regulators that regulate power to your CPU and GPU, among other things. So, using a power supply, like this one, with high ripple, could cause your motherboard and graphics card to fail. Also, since ripple stresses the VRM's, it can hinder overclocking.

    This power supply is very similar to the GameXStream power supply, reviewed at JonnyGuru.com. The ripple on the 12v rails of that power supply exceeds 150mV. ATX specs allow for 120mV, but lower is always better. Here is a shot of the ripple on the 12v rail:

    [image]

    ugly, isn't it. That's over 150mV of ripple, way over ATX specs. Now, to compare, here is the ripple on the Ultra X3 1600watt power supply, when loaded to approximately 1600watts, over double the load on the GameXStream from the previous picture:

    [image]

    That's under 20mV, at 1600WATTS!

    Truncated]

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  • 5
    CompWiz17 - Posted 10:00 am PST 02/7/08 (4897 Posts)  Report Spam

    To look at something a bit cheaper, here is the ripple on the 12v rail of the Rosewill RP500-2 power supply, a budget power supply that sells for somewhere around $50, retail:

    [image]

    that power supply, at full load, stays around 20mV ripple on the 12v rail.

    The GameXStream and StealthXStream lines are flawed, it's not just one of the units. The GameXStream 1010w power supply can't even run at all at more than 85% of it's rated wattage, it just shuts down. Also, since it was also made by FSP, it also has ripple problems, with all of it's rails(3v, 5v and 12v) going way above ATX ripple specs.

    Basically, don't buy a StealthXStream or a GameXStream. If you do, you risk burning out your the voltage regulators on your motherboard and graphics card. Do you really want to buy a replacement graphics card? And do you really want to have to pull all of your components out so you can install a new motherboard?

    Just buy a higher quality power supply.

    post continued below due to post length limit

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  • 6
    CompWiz17 - Posted 10:01 am PST 02/7/08 (4897 Posts)  Report Spam

    There are some other lines of power supplies that OCZ sells that are of much better quality, but avoid the GameXStream, ModXStream, and StealthXStream models. Their ProXStream, ModStream, and EvoStream power supplies do not have ripple problems.

    You could get this power supply and use it as a 300-400watt unit. The ripple would still be very high, but probably not out of spec. As long as it doesn't increase, you'd probably be fine. However, since very few people own an oscilloscope, it's very hard to check to see if the ripple is too high. So, you might get a slightly worse unit than the one that was reviewed, that happens to have ripple exceeding ATX specs at 300watts, and you'd never know it, until your components started failing.

    But, why would you want to pay $75 for a mediocre 300-400watt power supply? There are far better power supplies available for under that price that provide plenty of watts of nice, low ripple power.


    the above pictures are from power supply reviews at [H] Enthusiast and JonnyGuru.com.

    post continued below due to post length limit

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  • 7
    CompWiz17 - Posted 10:04 am PST 02/7/08 (4897 Posts)  Report Spam

    The Rosewill RX 850watt power supply was just on sale a couple days ago for $50, and that was an amazing deal. That power supply has good voltage regulation, and while it doesn't have the lowest ripple around, does stay very well within ATX specs up to it's maximum rated load. If you want a high wattage power supply for cheap, that power supply would be an excellent choice. http://bensbargains.net/deal/55617/

    The Corsair 550VX 550watt power supply is currently on sale for $70. That's a very high quality power supply with excellent output quality, and a nice big single 12v rail. It's definitely a far better choice than this power supply. It's not the cheapest power supply around, but quality construction costs more.
    link: http://bensbargains.net/deal/56024/

    The CoolerMaster eXtreme Power 500watt PSU is on sale right now for $8 at Frys.com. It's a solid 400-450watt Seventeam-made power supply, which is more than the vast majority of computers need anyway. Even a high end gaming computer with a quadcore CPU and 2 GeForce 8800GTX's in SLI(all overclocked) uses only 400-450watts at max load. So, if you've only got a dualcore CPU, and, say, a 8800GT, this power supply would be fine for you, and certainly an amazing deal at it's current price. However, many people have commented that the fan can be a little loud.
    link: http://bensbargains.net/deal/56214/

    Also, a little while ago, the CoolerMaster eXtreme Power 600watt PSU was also on sale for $8. That's an excellent budget power supply... [Truncated]

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  • 8
    mitda - Posted 12:04 pm PST 02/7/08 (880 Posts)  Report Spam

    "Ripple on the output power is a silent killer that can destroy many of your components."

    You're full of baconnaise. PCs are engineered to handle less-than-perfect power. If so many power supplies were going to fry the machine and everything inside, then they wouldn't be on the market. I'm sorry (not really) that you wasted money on overpriced components and are trying to justify your purchases with this BS, but that's your problem.

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  • 9
    effenfish - Posted 12:10 pm PST 02/7/08 (2195 Posts)  Report Spam

    Compwhiz, good job on the filibuster. however, consider saying something shorter like "POS" or "get this one", that's all I can handle.

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  • 10
    theSCgosu - Posted 4:44 pm PST 02/7/08 (544 Posts)  Report Spam

    Quote:
    You're full of baconnaise. PCs are engineered to handle less-than-perfect power. If so many power supplies were going to fry the machine and everything inside, then they wouldn't be on the market. I'm sorry (not really) that you wasted money on overpriced components and are trying to justify your purchases with this BS, but that's your problem.


    Actually it can shorten the life of your PC. It's the same reason people get UPS's with AVR.

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  • 11
    CompWiz17 - Posted 4:51 pm PST 02/7/08 (4897 Posts)  Report Spam

    mitda wrote:
    "Ripple on the output power is a silent killer that can destroy many of your components."

    You're full of baconnaise. PCs are engineered to handle less-than-perfect power. If so many power supplies were going to fry the machine and everything inside, then they wouldn't be on the market.


    Laughing well, while that sounds nice, it's actually completely wrong. Ever heard of PowMax? Leadman? Deer? Powtek? (I could go on ...)

    They sell power supplies that not only can damage your computer, but are actually likely to damage it. In fact, some of those power supplies are so bad, they can even take out other electronic devices on the same AC circuit when they go. During a review of one of the power supplies, the caulk used on the circuit board melted and sprayed onto the wall(by the fan), then the capacitors exploded off of the circuit board. And that wasn't even near the maximum load that they claimed it could handle.

    Try doing a little research before making bold claims.

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  • 12
    Anonymous - Posted 6:00 pm PST 02/7/08 (16776922 Posts)  Report Spam

    This rodeo cowboy will go on forever, I feel a new warm long turd blossom about to drop...

    "post continued below due to post length limit" will be that wizards last words.

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  • 13
    CompWiz17 - Posted 6:10 pm PST 02/7/08 (4897 Posts)  Report Spam

    mitda wrote:
    I'm sorry (not really) that you wasted money on overpriced components and are trying to justify your purchases with this BS, but that's your problem.


    guess how much I paid for all of the power supplies I own. Go on, guess.

    Well, I have yet to pay more than $30 for a power supply, and I've bought at least 8 of them.

    Unlike some of the other people who have posted on power supply deals in the past, saying that you have to spend a lot to get a good power supply, I say; get a good power supply for a low price. (no, you don't get what you pay for, if you're smart about it you get quite a bit more)

    Like the Rosewill Xtreme 850watt for $50. Or the Cooler Master eXtreme power 600watt for $8. Or the Ultra X-Finity 600watt for FAR.

    I'm all about saving money. Of course, it's also important to not get a power supply that will wreck your computer. But, low price and quality can be found together at times, if you can catch a good deal.

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  • 14
    PornStarMom - Posted 6:14 pm PST 02/7/08 (230 Posts)  Report Spam

    Sounds like you've got yourself convinced.

    Just like everyone here is convinced that you are drone stuck on repeat.

    God, your making everyone sick already! Just accept that no other website wants you to post because you are a dlck and move on.

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  • 15
    AndyOCZ - Posted 6:49 pm PST 02/7/08 (1 Posts)  Report Spam

    I just thought I would pop in her and see what is going on. We have thousands of happy customers using these power supplies. I won't begin to argue with JohnnyGuru's testing, whether I agree or not, but the GameXStream PSU line have power all of my rigs for the last few years now. I have not lost any components, even in stressed out rigs.

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  • 16
    CompWiz17 - Posted 5:48 am PST 02/8/08 (4897 Posts)  Report Spam

    #15: well, the thing is that these power supplies can run a system fine, as long as your system draws a lot less power than the power supply is rated for. If you've got, say, a 700watt GameXStream, then it probably wouldn't have any problem running a fairly high-end gaming computer(like dualcore CPU 8800 GPU, which draws around 300watts or less). But, if it's rated for 700watts, it should be able to produce 700watts without going out of spec.

    I read a press release recently from FSP(the company that manufacturs the OCZ GameXStream power supplies), in which they admitted that their ripple was high on some of their power supplies, and said that they were working on fixing that.

    Also, if you look at the review of the OCZ GameXStream 1010watt model at hardocp.com, they found that it couldn't supply more than 860watts without shutting itself down. That model also had ripple that exceeded ATX specs. link: http://enthusiast.hardocp.com/article.html?art=MTM0NSwzLCxoZW50aHVzaWFzdA==

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  • 17
    CompWiz17 - Posted 11:49 am PST 02/12/08 (4897 Posts)  Report Spam

    I have to post an update on this power supply. The OCZ rep that has recently joined these forums has told me that the ripple problems on this power supply have been fixed. Apparently, the initial sample units that FSP sent OCZ tested out fine, and fully in spec. But, the ones being sent out to customers had out of spec ripple. When OCZ found out about this discrepancy, they had FSP fix the problem. This probably lines up with the press release from FSP I mentioned in the previous post.

    So, if this is true, then this power supply is probably one of the newer units with the ripple problem fixed. Also, I'd assume that they didn't mess up the voltage regulation which was already very good, so, that's likely fine as well.

    However, I only have this one rep's word on this. I have yet to see any reviews confirming that the problem has been fixed. If anyone does know of a good recent review of a GameXStream or StealthXStream power supply, please link it on here. I'd like to confirm or refute this statement as soon as possible.

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