Rosewill Capstone 450W and 650W 80Plus Gold
by Martin Kaffei on March 21, 2012 8:00 AM EST- Posted in
- Cases/Cooling/PSUs
- PSUs
- Rosewill
- Capstone
- 80 Plus Gold
Package Contents, Fan, and Power Rating
Rosewill offers a few extras in the package. Besides the standard power cable and four screws, you get a short user manual, and all the modular cables come in a bag (650W only). According to the manufacturer's specifications, the whole series is SLI-ready and uses a single +12V output. Again they used a "mesh sleeving on all cables for easier cable routing and better ventilation". The 80 Plus Gold certificate is another feature—nothing special these days, but still a good basis.
The 450W PSU has a +12V output rated at 37A, which is quite a lot. Both +3.3V and +5V get fed by this output and are specified at 20A each. Those outputs can provide up to 100W, which is lower than the values we saw from Seasonic (560W Gold). But these values are still more than sufficient for all modern PCs, though older PCs might need more power here. The +5VSB at 3A is also relatively strong. The 650W model can deliver 648W on +12V and up to 110W on +3.3V and +5V. -12V and the standby power are identically rated.
The 140mm fan in both models is an RL4Z B1402512M from Globe Fan. This model is used in many power supplies that are manufactured by Sirtec (High Power) and SuperFlower. It has a moderate (M) speed within the RLXX series. The fan uses 0.33A and consists of 11 fan blades with rough edges. It's a ball bearing (B), but a cheaper one. We would like to see Sanyo Denki here or an HDB fan.
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Martin Kaffei - Wednesday, March 21, 2012 - link
@adeceI tried to get some cheap PSUs but it's very difficult. Manufacturers won't give me samples. In addition I live in Germany so I can't buy local brands which are available in the USA.
But I had some cheap PSUs as well and some of them died spectacular. Others had no problems but efficiency and voltage regulation was quite bad. In addition the small number of connectors is always unfavorable.
4745454b - Wednesday, March 21, 2012 - link
I agree to a point.First, if you meant the uber cheap/junk are fine you are way wrong. Those on newegg that advertise "up to 75% efficient" are the ones I'm talking about. If you are buying a 600W PSU for $20, there is something wrong.
Second, I to have mentioned that you don't need the 80Gold or platinum PSUs. Big difference in energy savings between "up to 75%" and 90%. Not so much when looking at 85% and 90%. The extra cost of moving to gold/plat isn't worth it yet. I personally feel that 80bronze is the sweet spot right now. Gold is quickly moving down in price however and some of them are looking good.
If you mean you don't need these super high end ones I'd agree. But there is no way I'd run of those cheapo's that weighs less less then my shoes.
Concillian - Wednesday, March 21, 2012 - link
What I pay for power and what power my computer uses, the cost of power saved does exceed the extra cost of the unit over the life of the PSU if I buy a $70-80 gold vs. a $40 cheapie... so the article does have a purpose.Just because you are not the target audience doesn't make the article irrelevant.
MooseMuffin - Wednesday, March 21, 2012 - link
I've had 2 cheap power supplies die on me over the years, and the catch was that neither one of them would die alone. In both cases they took my videocard with it. Never again.just4U - Wednesday, March 21, 2012 - link
There are alot of really good power supplies in the $50 range and I think for most people they do the trick nicely... and with a level of confidence that it's not going to be some major piece of junk. The PSUs many of you are refering to are the ones we wouldn't pay a buck for (yeah.. you've seen them!)Anyway.. after that it's pretty much up to you.. can go better, but certainly don't want to go worse. Besides alot of psu's in all price ranges come on sale so there isn't really a reason to cheap out in that area. Bad enough the OEMs do it all the time.
crazyglue - Friday, March 23, 2012 - link
Having built untold # of systems for family, friends, & for sale over the last 10 or so years, early on, about 1/4 have failed due to cheap PSU's. Since replacing with better units (at my cost!) I've settled on PC P&C (not OCZ) & all are still purring away.. Many 24/7 home servers-media units... You got lucky I guess, but that's not the norm.....lbeyak - Wednesday, March 21, 2012 - link
I grew increasingly more annoyed every time I saw a new error, and eventually I decided to post about them.Page 2 - Paragraph 1
"According to the manufacturer's specifications, the hole series is SLI-ready and uses a single +12V output."
hole -> whole
Page 2 - Paragraph 2
"The 550W model can deliver 648W on +12V and up to 110W on +3.3V and +5V."
I think you meant 650W here, not 550W.
Page 3 - Paragraph 1
"Here we show how the 450W model looks like."
Here we show how the 450W model looks. OR Here we show what the 450W model looks like. would make more sense here.
Page 4 - Paragraph 1
"This time SuperFlower ist the manufacturer. In the prictures above we show the 650W version only since the 450W model consists of the same design."
ist -> is
prictures -> pictures
Page 6 - Paragraph 2
"The Capstone series combines the resontant circuit with an asynchronous half bridge and DC-to-DC converter on the secondary side."
resontant -> resonant
Page 6 - Paragraph 5
"The FSP Aurum CM 650W is also very cheap, but it's louder and more expensice than the Capstone 650W."
expensice -> expensive
While I appreciate speed of article delivery, I get quite annoyed at errors that could have been prevented easily. Most of these errors could have easily been caught with a simple spell check program. I was just surprised that there were quite a few errors for such a short review (compared to some others on the site).
Thanks for the good review though Martin.
Martin Kaffei - Wednesday, March 21, 2012 - link
Fixed. Thanks a lot.In my next life I would like to become an US citizen.
lbeyak - Wednesday, March 21, 2012 - link
I'm not sure what you mean by that, but I will note that I am a proud Canadian.:)
Martin Kaffei - Wednesday, March 21, 2012 - link
That's nice as well.