Rosewill Fortress Platinum 450W
by Martin Kaffei on September 14, 2012 12:00 PM EST- Posted in
- Cases/Cooling/PSUs
- PSUs
- Rosewill
- 80Plus Platinum
- ATNG
- Fortress
- 450W
Voltage Regulation
| +3.3V Regulation/Ripple and Noise | |
| Load | Voltage |
| 5% | 3.34V (9mV) |
| 10% | 3.33V (14mV) |
| 20% | 3.31V (17mV) |
| 50% | 3,31V (22mV) |
| 80% | 3.29V (24mV) |
| 100% | 3.27V (27mV) |
| 110% | 3.27V (30mV) |
| Crossload +12V max. | -0.30% |
| Crossload +3.3V/+5V max. | +1.52% |
| +5V Regulation/Ripple and Noise | |
| Load | Voltage |
| 5% | 5.10V (7mV) |
| 10% | 5.10V (11mV) |
| 20% | 5.10V (16mV) |
| 50% | 5.08V (19mV) |
| 80% | 5.02V (23mV) |
| 100% | 4.99V (27mV) |
| 110% | 4.97V (29mV) |
| Crossload +12V max. | +1.00% |
| Crossload +3.3V/+5V max. | -0.80% |
| +12V Regulation (Worst Ouput)/Ripple and Noise (Worst Output) | |
| Load | Voltage |
| 5% | 12.14V (20mV) |
| 10% | 12.10V (24mV) |
| 20% | 12.10V (29mV) |
| 50% | 12.08V (33mV) |
| 80% | 12.06V (37mV) |
| 100% | 12.00V (42mV) |
| 110% | 11.99V (44mV) |
| Crossload +12V max. | -0.16% |
| Crossload +3.3V/+5V max. | -0.42% |
Noise Levels
| Sound Pressure Level (Ambient: 16dBA, 1m distance) and Temperatures (Δϑ to 23.4 °C ambient temperature) | |
| Load | Opinion |
| 5% | 18 dBA (0.9°C) |
| 10% | 18 dBA (2.0 °C) |
| 20% | 18 dBA (5.1 °C) |
| 50% | 22 dBA (6.2 °C) |
| 80% | 27 dBA (8.6 °C) |
| 100% | 27 dBA (9.5 °C) |
| 110% | 27 dBA (11.2 °C) |
Efficiency and PFC
| Efficiency and Power Factor 115 VAC | ||
| Load | Efficiency | PFC |
| 5% | 71.25% | 0.812 |
| 10% | 84.97% | 0.842 |
| 20% | 91.03% | 0.939 |
| 50% | 91.64% | 0.945 |
| 80% | 91.22% | 0.972 |
| 100% | 90.79% | 0.989 |
| 110% | 90.38% | 0.990 |
| Efficiency and Power Factor 230 VAC | ||
| Load | Efficiency | PFC |
| 5% | 73.29% | 0.735 |
| 10% | 86.85% | 0.829 |
| 20% | 91.84% | 0.877 |
| 50% | 92.42% | 0.925 |
| 80% | 91.85% | 0.956 |
| 100% | 91.08% | 0.972 |
| 110% | 90.72% | 0.983 |
Looking at the tables, all rails are within specification and acceptable for an expensive power supply. In fact, 12V didn't even drop below 12.00V at full load. However, ripple is much more important. Here the Fortress 450W can keep up with most other brands, even if Seasonic is still the best. Even at 10% load Rosewill delivers 85% to 87% efficiency. 115VAC reaches up to 91.64% efficiency, while 230VAC delivers slightly better results. From 0% to 50% load the Fortress remains silent, but once the load goes beyond this level the fan RPMs increase rapidly. The good news is that the bearing is absolutely inaudible and we didn't hear the chokes singing.
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25 Comments
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pattycake0147 - Friday, September 14, 2012 - link
Also not trying to be a jerk. If you're going to talk about how expensive it is on the first page, then tell me the price. I had to search for it and then finally found the price listed on the last page.doctormonroe - Friday, September 14, 2012 - link
In the article it states that the warranty length is 5 years, however according to Rosewill's product page the Fortress-450 has a 7 year warranty.http://www.rosewill.com/products/2286/ProductDetai...
justaviking - Friday, September 14, 2012 - link
Article is not consistent with itself:Page 2 says "7-year warranty"
Page 6 says "5-year warranty"
radbmw - Friday, September 14, 2012 - link
Warranty is 7 years according to Newegg, as well.Uritziel - Friday, September 14, 2012 - link
I have to agree with the other commenters. This article is well below the quality level I've come to expect from Anandtech.com. Excepting the images, every aspect is substandard. The edits in response to the other comments helped, but several parts (esp. the conclusion page) are still painful to read. I don't recognize the author, and I don't want to hate on him; however, this article reads like a very early rough draft.infoilrator - Friday, September 14, 2012 - link
Very good review, despite grammar patrol,Rosewill is doing very well in price/performance/quality here. I also find the Capstone line moredesirablee in price, especially when discounted.
bobbozzo - Friday, September 14, 2012 - link
bottom of page 2, change 37W to 37A.bobbozzo - Friday, September 14, 2012 - link
page 6: "performancs" should be performance.tynopik - Friday, September 14, 2012 - link
I do appreciate the breakdown of where exactly each connector is on each cable.But I would like to see more punishment of the PSUs. How do they hold up in extreme situations?
There have been reports that some PSUs don't work well with square-wave UPSs.
Do they hold up in hot conditions?
How do they handle low voltage (brownout) conditions? (say 90V)
How do they handle voltage swings? (Hook them up to a variac, start twisting the dial and see what kind of transients you can generate)
If they face a large load at once (say a bunch of hard drives spinning up simultaneously), how does it maintain the voltage levels?
If you short out a cable, will you blow up anything?
wrkingclass_hero - Saturday, September 15, 2012 - link
Someone get this man a job at Anandtech.