Rosewill Fortress 750W Power Supply Review

Posted by on Wednesday, December 12, 2012 - 8:00am

Today, we want to bring you one such power supply. The unit is the new Rosewill Fortress 750. Rosewill is aiming the new Fortress at the gamer and enthusiast markets looking for super efficiency, mid-range power and silent. Rosewill offers four units in this series being: 450, 550, 650 and the 750 watt model we are looking at today.

Rosewill Fortress 750W Power Supply Review

 

Introduction

Computer systems are becoming more and more powerful every day. Super-fast processors are pushing calculation are razer speeds, video games are making gameplay as fluid as it has ever been and storage arrays are getting larger by the day, so a good efficient power supply is needed.

The nice thing is large wattage powers are not. All these components are getting more powerful or even larger but require less power than before. So, with a good 80Plus rated PSU and about 750-800 watts you can build a great rig and not worry much about your electrical bill.

Today, we want to bring you one such power supply. The unit is the new Rosewill Fortress 750. Rosewill is aiming the new Fortress at the gamer and enthusiast markets looking for super efficiency, mid-range power and silent. Rosewill offers four units in this series being: 450, 550, 650 and the 750 watt model we are looking at today.


Specifications

Model

FORTRESS-750

Series

FORTRESS

Type

ATX12V v2.31 & EPS12V v2.92

Maximum Power

Continuous 750W@50°C

Fans

1 x Silent 135mm

PFC

Active

Main Connector

20+4Pin

+12V Rails

Single

PCI-E Connectors

4 x 6+2-pin

Modular Cable Support

No

SLI Support

Yes

Power Good Signal

100-500ms

Hold-up Time

> 16ms

Efficiency

> 89%, Up to 94%

Over-Voltage Protection

Yes

Over-Load Protection

Yes

Input Voltage

100 - 240 V

Input Frequency Range

47 - 63 Hz

Input Current

10A

Output

+3.3V@20A,+5V@20A,+12V@62.5A,-12V@0.5A,+5VSB@2.5A

MTBF

100k hours at 25°C, max. load, nominal input

Approvals

cTUVus, FCC, CE, ROHS

Connectors

1x 20+4-Pin Main Connector
1x 4+4-Pin ATX12V/EPS12V Connector
2x 6+2-Pin PCI-E Connector
5x 4-Pin Peripheral Connector
8x 5-Pin SATA Connector
1x 4-Pin Floppy Connector

Dimension

5.9 x 3.39 x 6.42 inch
150 x 86 x 163 mm
W x H x D

Weight

3.6 kg
8.0 lbs

Warranty

7-year Warranty : One-to-One Replacement

Features

  80 PLUS PLATINUM Certified
  Continuous 750W@50°C
  All Japan capacitors 
  Single strong 12V rail – idea for Gaming system 
  SLI & CrossFire Ready – 4 x 6+2pin Connector
  1x Silent 135mm Fan with Auto Fan Speed Control for better silence
  Active-PFC with auto AC-input voltage adjustment(100-240V)
  Special Black Coating Housing
  Mesh sleeving on all cables for easier cable routing and better ventilation
  Over Current/Voltage/Power Protection, Under Voltage Protection, and Short Circuit Protection provide maximum safety to your critical system components
  Safety & EMI Approval : cULus, FCC, CE, ROHS
  7-year Warranty : One to one replacement 


Closer look

The 750W model like the rest of the series share a 80 PLUS Platinum certification. This means the unit was capable of maintain an energy efficiency of 89% at 100% load.

The outside of the Rosewill unit is a rugged and very robust texture, one that we have seen demonstrated on many power supplies before. Not looking like it from the studio photos below the unit does flow with the smoothness that most case interior have.

To cool the unit a 135mm fan is employed. The spinner is PWM controlled and should do well enough to keep the power supply cool and working perfectly for some time.

The ‘Fortress’ name is printed large on both elongated sides of the unit.

The rear of the unit has the typical honeycomb shaped vent openings.

Now, we see that the Rosewill PSU is not a modular unit. Yes, that is right all the cables are permanently attached to the unit. If you are looking for a modular unit than the Hive series from Rosewill would be the one to check out.

All the extensions of the unit are nicely sleeved.

Cable Connections

20/4 Pin ATX

4+4 (8) Pin EPS

4 Pin Molex

SATA

6 Pin PCIe

6+2 Pin PCIe

Floppy

 

Rosewill Fortress 750W

1

1

5

8

0

4

1

 

 


Testing Begins

Test Hardware:

1. ASUS X79 Deluxe Motherboard
2. Intel Core i7 3930K Processor
3. Kingston HyperX 1866 DDR3 16GB (Thanks to Kingston for donating to our test bench)
4. Kingston V+ 200 120GB Solid State Drive (Thanks to Kingston for donating to our test bench)
5. ASUS BC12B1LT BD-Rom Drive
6. Thermaltake Frio Extreme CPU Cooler
7. Microcool Banchetto 101 Open Air Test Bench
8. Rosewill Fortress 750 FSP Aurum Pro Gold 850W
Enermax Revolution87+ 1000W
be Quiet! Dark Power Pro 10 850W
Lepa G650
9. ASUS Nvidia GTX 560Ti 448 Graphic Card

Results

We know that testing a power supply on a loaded system is not the very best way to do so, but you cannot overlook real world testing. Other sites have methods that use thousands of dollars in equipment to provide them greater detail. We have a trusty digital multimeter. Those sites and the methods they use should be the true means of determining how good a power supply really is; however, we feel that showing you how it performs under real world conditions is also a valid measure of its performance.


Conclusion

Remember our tests are very simple but is done in a way that many people can understand. And during these tests we show the Rosewill Fortress perform pretty well. So, well that it remains on one of our test benches to this very day. At 750 watt, it has enough power to build a very nice rig around and that would include a couple of mid-range graphic cards for a gaming system.

Spot testing it in a couple of mi towers we had no issues with the length of cables. The cables are very nicely sleeved as well. The one thing we can see people not being really fund of the Fortress is because it is not modular. Remember not everyone have chosen to go that route. But if you must there is always the Hive series also from Rosewill.

The Fortress does consist of lower wattage models for those that do not need as much power like the HTPC builders and SFF users. But if you do need large amounts of power look to the Lightning series for that.

The 750W Fortress can be had from Newegg for $119.

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