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Rosewill PSU reliability?

S

Sunborder

Limp Gawd
Joined
Jun 21, 2004
Messages
169
I've got a rosewill optical drive and some rosewill RAM, as I don't feel these are critical components (If they blow, they are unlikely to take out my entire system with it). I'm currently looking for a budget power source, and saw a deal for a rosewill 450watt PSU. Is this thing going to blow up on me?

Anyone have any information on Rosewill PSU's? I know that rosewill is trying to get its hands on the budget(but not crap) market for components, but will the insides be held together with a glue gun? (I saw that in a PSU I replaced for my dad's business system........stay away from microlab....I replaced it with a FSP)
 
Which Rosewill and, like Spectre asked, what's it powering?

A lot of gaps in this post, if you know what I mean. ;)
 
Rosewill is really a mystery to the entire computer world right now. There's theory's where it came from, but what it is exactly and how reliable they are is still a question. There hasn't been any negative feedback about there products I've heard of, more of a too good to be true thing.
 
Because Rosewill is unknown, I would say their PSUs would be like a ticking timebomb
 
n64man120 said:
Rosewill is really a mystery to the entire computer world right now. There's theory's where it came from, but what it is exactly and how reliable they are is still a question.
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It's no mystery they're a block away from Newegg. :p

There hasn't been any negative feedback about there products I've heard of, more of a too good to be true thing.
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Well.. I do believe most of their product line is relabeled ATNG product, which isn't necessarily a GOOD thing.

Now I'm going to have to go and buy one just to see if I can blow it up. :p
 
jonnyGURU said:
It's no mystery they're a block away from Newegg. :p



Well.. I do believe most of their product line is relabeled ATNG product, which isn't necessarily a GOOD thing.

Now I'm going to have to go and buy one just to see if I can blow it up. :p
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Well at least they are on sale right now.
 
jonnyGURU said:
It's no mystery they're a block away from Newegg. :p
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This is a strong, yet unconfirmed theory. Nobody has came out to confirm it. Really interesting though how they came out of nowhere and are most budget in everything. Good call by Newegg presumably.
 
n64man120 said:
This is a strong, yet unconfirmed theory. Nobody has came out to confirm it.
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Some cat named "Whois" confirmed it for me. ;)

The contact in the Whois is RickieLee@ABSPC.com

ABS, of course, is the parent company of Newegg. ;)
 
Having said that, there are a lot of cheap/crappy PSU's on newegg's website. Still, I may chance it.

As for the original post...hold on.

http://www2.newegg.com/Product/Product.asp?Item=N82E16817182008

and it will be powering the filserver/linux box in my sig....sempron 2200+, and 3 IDE HDs, all 7200rpm, 1 optical, onboard graphics.

Right now I have a $15 time bomb/glue gun fire hazard in it(no lectures please, I know how stupid this is), and I have cash for a decent PSU, so I want to put something in there ASAP.

I may chance the rosewill, just to see. It's not like I have anything critical on this machine. I will definitely pop the cover, though, so you guys can get a look inside, pics and all.

As for them being down the street from each other, a simple look at their web-pages would indicate that their offices, at least, are in different cities.
 
Actually, I am contacting Rosewill about possibly getting a review unit and doing a review for my site. Anyone in the San Diego area want to help me put this thing through its paces?

Here's hoping they send me something good to review.
 
Well, I build system about 3-4 a month, and useally use roswell CDRW/DVD roms, the packageing is great, included nice NERO package, the drive itself is allway in great condiution feels like its good quality. And the drives work great...When i put DVD burners in them i use Lite-on however.

But i have been wanting to try other rosswell products as im really extra happy with there Disk drives.
 
Sunborder said:
Actually, I am contacting Rosewill about possibly getting a review unit and doing a review for my site. Anyone in the San Diego area want to help me put this thing through its paces?

Here's hoping they send me something good to review.
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when you say "review" whats your test proceedure and equipment?
 
Well, I'd do more than just run MBM5, of course. Grab a voltmeter from my kit and do some manual testing w/short. Weigh the sucker, for one. Use Everest to double check the temps reported by the mobo via MBM5. Put the sucker under heavy load for a week and see how it hold up (in the coming summer heat). I have two systems, one low end with a set of 3 drives, one medium range, (both in my sig) that I would use. Also measure the decibel levels of the fan(s) at idle and under load. I'd definitely run some temperature sensors inside the sucker and see what temps that reported.

Add to that, I'd pop the cover off and see what kind of heat sinks/components are inside.

Plus anything else (within reason) that you guys suggest. I can't run off to Germany to test the thing on a massive PSU load-tester, of course.

Some of their higher watt psu's also have fan switch/knobs to control rpms...so that would add another dimension to the review, as I would have to do a lot of the testing two or three times....and tracking ambient temps during the test runs to boot.

That would be a start.

Edited to add: I've got one in the mail anyway, but if they send me a review unit, I'd obviously give it the sort of review above. Otherwise, I'll probably just post pics of the inside and let you know if it blows up someday.
 
Don't use that other than to monitor the speed of your fans. The voltage measurements are so unreliable as to be phoney. It tells me my 12V line is 11.17V, yet my digital doc and my multimeter says its around 12.5.

_Korruption_ said:
MBM5 :p
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puppyfriend said:
Don't use that other than to monitor the speed of your fans. The voltage measurements are so unreliable as to be phoney. It tells me my 12V line is 11.17V, yet my digital doc and my multimeter says its around 12.5.
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He knows. He was being sarcastic.
 
Sunborder said:
Well, I'd do more than just run MBM5, of course.
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well we are infamous for being hard on reviewers in here :p
the main reason for that is most of those reviews are on static configs
and are of limited value

jonnyGURU
Lee Garbutt
Mike Chin
Oleg Artamonov

are the exceptions, they are able to place various loads on the supply to map out (to a larger and lesser extent) the crossload profile

in short, what happens to the load regulation when you put say a 200W load on with 3\4 of it on the +12V and one 1\4 of it on the +5V
and the same with it reversed 3\4 on the +5V and 1\4 on the +12V
two vastly different power schemes and spec compliance
(note in most supplies the +3.3V and +5V are shared capacity and basically the same rail)

example

547GG.gif

bakward compatible to ATX12V V1.2
red crossload profile below
(actual ATX12V 1.3 hybrid)

ocz2.gif

bakward compatible to ATX12V V1.3
green crossload profile below
(actual ATX12V 1.3 hybrid)

ATX.gif

Charts & Graphs by Xbit \ Oleg Artamonov

(assumed similar crossload profile for the higher wattage class)

since we currently have people with both older +5V power mobos
and new boards with +12V powered mobos, and such a drift in compliance
a "static" config review is largely misleading to the uninformed, of coure they generally add caveates or assume the reader understands the limitations, but generally n00b reader dont comprehend that fundemental difference looking only at I have more or less total components and the wattage figures, not the amps or what ratio of amps per rail to total wattage and how stable the voltage would be within a certain range of the crossload profile

Xbit isnt loading for me right this second, but there are some new supplies that have been added to the data base in the last roundup
http://www.xbitlabs.com/articles/other/display/atx-psu.html and show the vast differences between assorted supplies in those crossload profiles (and traces)
(that link w\ the charts above is the total methodology)

with an acurrate crossload profile mapped of a supply
its possible to use takamans calculator
http://takaman.jp/D/index.html?english
figure out both a worse case draw (which is less than the additive theoretical maximum see > http://hardforum.com/showthread.php?t=844691)
and a "typical draw" which is much much lower > http://www.silentpcreview.com/article28-page4.html
(educated guessing for amps per rail required)
then look at that range in the crossload profile and get a good idea of the rail fluctuation you expect for a given rail, and if you can locate an oscilliscope trace as well all the better

at least you are running more than just one static config
Id check that one is +5V based and the other +12V based
and workup the probable draws in both its worse case and typical
in addition Id monitor spinup fluctuation on the +12V


stressing a PSU isnt about loading it up, that actually evens out fluctuation
its all about variable load, going from nearly pegging the components to next to nothing and still being within load regulation specs, thats a stres test

same thing when you alter the VAC
http://www.silentpcreview.com/article166-page2.html > A Technical Postscript: Output Voltage Regulation and AC Voltage

variacs are pretty cheap on ebay BTW
and you dont necessarilly need a trick powersupply tester to load up the rails
Lee garbutt made his own http://www.pcper.com/article.php?aid=106&type=expert
(with the fan on top) out of resistors

as a side note Ive recently seen a few modern supplies on older boards that likely where unable to maintain a stable in spec +12V voltage because there wasnt enough load on that rail, if you look at the comparative specs chart you can see how that could occur
of course individual supplies vary greatly, many not actually being in compliance

at one point even PCP&C Turbo Cools where having some issues with config that didnt have enough draw (they addressed that)
something to keep in mind when you look at Mike Chin's "typical" draw link above
most of the time your employing only a small fraction of the total capacity, and the worse case draw is a rare occurance

not touched on is mapping the efficiency of a supply at a given load
Mike Chin excells at that, and it does have quite a bearing on total heat produced and picking a lean supply in pursuit of a silent solution


good luck ;)

and one more link
http://www.smpstech.com/
which will give you an appreciation as to how tough PSU design is and how hard it is to make a PSU that has a broad operating range
 
Heard nothing. Newegg/Fedex report that it is going to be delivered on Thursday. I'll probably put something up in the next week or two, just basics, since they don't seem to be all that interested. Not even a friendly response. *shrug*
 
Sunborder said:
Heard nothing. Newegg/Fedex report that it is going to be delivered on Thursday. I'll probably put something up in the next week or two, just basics, since they don't seem to be all that interested. Not even a friendly response. *shrug*
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Have you actually TALKED to someone at Newegg about review items or did you just fire off an email?

Newegg kind of sucks for review items.. but they might be different with one of their "house brands."

They typically want the item back within 30 days (I might as well buy it and just RMA it, right?) and they expect to get it back in mint and complete condition and if it's a power supply with a WARRANTY VOID IF REMOVED sticker on it, don't open it or you'll never get anything from Newegg ever again. ;) It's as if they're going to take the item you review and just throw it back on the shelf.

When TCWO was around and we gave out items to review, we wrote it off as a promotional expense and let the reviewer keep the item. :rolleyes: What's a $100 item when a one page ad in Maximum PC is about $10,000? ;)
 
I talked to ROSEWILL, not Newegg. I sent them an email, but plan on calling them soon, but not before I finish the next major project for my business and finish my term papers for graduate school. But, if they are not amenable, I may just pick something up in Akihabara in June to bring back and review for the domestic audience.....heh.
 
Sunborder said:
I talked to ROSEWILL, not Newegg. I sent them an email, but plan on calling them soon, but not before I finish the next major project for my business and finish my term papers for graduate school. But, if they are not amenable, I may just pick something up in Akihabara in June to bring back and review for the domestic audience.....heh.
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Cool. At least you TALKED to someone. That makes all of the difference in the world. ;)
 
No dice. Nothing after 3 days. *shrug*

The PSU came however, and I will be putting up a VERY brief description with a few pics of the internals...however, if Grolm is any gauge, it's putting out pretty solid power. It's not a featherweight (which doesn't mean anything in and of itself, but is a good sign), and appears to have been made with better than bottom basement components. Very quiet, good airflow, nothing's blown up yet.

Until I can do some real testing, that's about the size of it. I'll put some pics up in the next few days.
 
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