Hardware Secrets
Home | Camera | Case | CE | Cooling | CPU | Input | Memory | Mobile | Motherboard | Networking | Power | Storage | Video | Other
Content
Articles
First Look
Gabriel's Blog
News
Reviews
Tutorials
Main Menu
About Us
Awarded Products
Compare Prices
Datasheets
Dictionary
Download
Drivers
Forums
Links
Manufacturer Finder
Newsletter
On The Web
RSS Feed
Test Your Skills
Twitter
Newsletter
Subscribe today!
Search




Recommended
Switching Power Supplies A to Z
Switching Power Supplies A to Z, by Sanjaya Maniktala (Newnes), starting at $45.00
Home » Power
Antec TruePower Quattro 850 W Power Supply Review
Author: Gabriel Torres
Type: Reviews Last Updated: May 15, 2008
Page: 7 of 10
$ Check REAL-TIME pricing for Coolmax RM-850B 850-Watt Power Supply - Dual PCI-E 120mm Fan $.
TigerDirect: $99.99 eCost: $89.99
CompUSA: $99.99 Newegg: $79.99

Load Tests
Hardware Secrets Bronze Award

We made several tests with this power supply as described in the article Hardware Secrets Power Supply Test Methodology.



First we tested this power supply with five different loads patterns, trying to pull around 20%, 40%, 60%, 80% and 100% of its maximum capacity (under “% Max Load” we list the actual percentage that was used), watching how the reviewed unit behaved under each load. On the table below we list the load patterns we used and the results for each load.

If you add all the powers listed for each test you may find a value different from what posted under “Total” below. Since each output can have a slight variation (e.g. +5 V output working at 5.10 V) the actual total amount of power being delivered is slightly different from the calculated value. On “Total” row we are using the real amount of power being delivered, as measured by our load tester.

+12V2 is the second +12V input from our load tester and during our tests it was connected to the power supply EPS12V – i.e. to the +12V1 rail. The +12V1 input was connected to the +12V2, +12V3 and +12V4 rails.

Input

Test 1

Test 2

Test 3

Test 4

Test 5

+12V1

6 A (72 W)

13 A (156 W)

20 A (240 W)

25 A (300 W)

31 A (372 W)

+12V2

6 A (72 W)

12 A (144 W)

17 A (204 W)

25 A (300 W)

31 A (372 W)

+5V

2 A (10 W)

4 A (20 W)

6 A (30 W)

8 A (40 W)

10 A (50 W)

+3.3 V

2 A (6.6 W)

4 A (13.2 W)

6 A (19.8 W)

8 A (26.4 W)

10 A (33 W)

+5VSB

1 A (5 W)

1.5 A (7.5 W)

2 A (10 W)

2.5 A (12.5 W)

3 A (15 W)

-12 V

0.5 A (6 W)

0.5 A (6 W)

0.5 A (6 W)

0.5 A (6 W)

0.5 A (6 W)

Total

173.7 W

350.5 W

514. W

689. W

850.4 W

% Max Load

20.4%

41.2%

60.5%

81.1%

100.0%

Room Temp.

47.1º C

47.6º C

47.8º C

48.6º C

50.1º C

PSU Temp.

48.6º C

49.5º C

48.2º C

48.7º C

50.1º C

Load Test

Pass

Pass

Pass

Pass

Pass

Voltage Stability

Pass

Pass

Pass

Pass

Pass

Ripple and Noise

Pass

Pass

Pass

Pass

Fail

AC Power

201 W

397 W

588 W

809 W

1033 W

Efficiency

86.4%

88.3%

87.4%

85.2%

82.3%

Final Result

Pass

Pass

Pass

Pass

Fail

This power supply could deliver its rated power at 50º C – which would be perfect if noise level didn’t go out of spec at +5 V line after working for just one minute at this temperature.

Working at 45º C noise level at the +12V1 input from our load tester was at 49.4 mV, at the +12V2 input was at 36.8 mV, at the +5 V was at 23.2 mV and at the +3.3 V was at 28 mV. These are very good results. But after temperature increased to 50º C noise level started to increase after just one minute, jumping to 88 mV at the +12V1 input from our load tester (i.e. at the +12V2 rail from the power supply) and to 62.8 mV at the +5 V output, making the power supply to work out specs, as the maximum admissible noise level for this output is of 50 mV.

Not only that. Even at 45º C noise level at +5VSB was out of range, at 65.8 mV. This is the first time we’ve seen a power supply with such high noise level at this output.

Below you can compare what happened after working one minute at 50º C.

Antec TruePower Quattro 850 W
click to enlarge
Figure 18: +12V1 input from our load tester with power supply delivering 850 W at 45º C.

Antec TruePower Quattro 850 W
click to enlarge
Figure 19: +12V1 input from our load tester with power supply delivering 850 W after one minute at 50º C. See the big spikes.

Antec TruePower Quattro 850 W
click to enlarge
Figure 20: +5 V line with power supply delivering 850 W at 45º C.

Antec TruePower Quattro 850 W
click to enlarge
Figure 21: +5 V line with power supply delivering 850 W after one minute at 50º C. See the big spikes.

Antec TruePower Quattro 850 W
click to enlarge
Figure 22: Noise level at +5VSB was above 50 mV.

Taking out this “detail” it isn’t a bad power supply. It reached efficiency between 82.3% and 88.3%, staying always above 85% if you pull up to 80% of the power supply nominal power (i.e. up to 680 W).

Voltage regulation was excellent and during all our tests all outputs were within 3% of their nominal voltages – ATX specification defines that all outputs must be within 5% of their nominal voltages (10% for -12 V) –, except -12 V (this output was within the 10% tolerance set by ATX specification).

Let’s now see if we could pull even more power from this unit and our tests of the power supply protections.

Pages (10): « 1 2 3 4 5 6 [7] 8 9 10 »
Print Version | Send to Friend | | Bookmark Article | Comments (0)

Related Content
  • Antec NeoPower 550 Power Supply Review
  • Zalman ZM600-HP 600 W Power Supply Review
  • OCZ StealthXStream 600 W Power Supply Review
  • Cooler Master Real Power Pro 850 W Power Supply Review
  • Thermaltake Toughpower 1500 W Power Supply

  • Recommended Deal.
    Power Supply VX550W 550W ATX12VAmazon.com Corsair CMPSU-550VX 550-Watt VX Series 80 Plus Certified Power Supply compatible with Core i7 and i5 Electronics value select


    Amazon: $90.53 Newegg: $79.99
    ZipZoomFly: $93.99

    RSSLatest News
    IN WIN LAN Party in Southern California
    November 20, 2009 - 12:37 PM PST
    Patriot Announces PS-100 SSD Series
    November 19, 2009 - 7:30 AM PST
    Antec Launches TPQ-1200 PSU
    November 18, 2009 - 11:30 AM PST
    AMD/ATI Launches Radeon HD 5970
    November 18, 2009 - 10:18 AM PST
    OCZ Launches Colossus SSD Series
    November 17, 2009 - 1:39 PM PST
    NZXT Unleashes Tempest EVO Mid-Tower Case
    November 17, 2009 - 1:06 PM PST
    nVidia Launches GeForce GT 240
    November 17, 2009 - 10:18 AM PST
    Arctic Cooling Announces Accelero TWIN TURBO PRO VGA Cooler
    November 16, 2009 - 11:46 AM PST
    PowerColor Announces PLAY! HD5770 Video Card
    November 13, 2009 - 12:51 PM PST
    G.Skill Announces Falcon II SSD Series
    November 11, 2009 - 3:31 PM PST
    .:: More News ::.

    RSSLatest Content
    Ultra X4 500 W Power Supply Review
    Seagate Barracuda XT 2 TB Hard Disk Drive Review
    Nintendo Wii Fit Plus Review
    AMD ATI Chips Comparison Table
    nVidia Chips Comparison Table
    Gigabyte G41M-ES2L Motherboard
    Netflix on Playstation 3 Review
    CM Storm Sentinel Advance Mouse Review
    Titan Skalli CPU Cooler Review
    Nexus RX-6300 630 W Power Supply Review
    Gigabyte P55-UD6 Motherboard
    Nintendo Wii Review
    SilverStone Grandia GD04 Case Review
    Can We Trust the 80 Plus Certification?
    NZXT Gamma Case Review

    Our Most Popular Articles
    Maximum CPU Temperature
    1,078,425 views
    How to Find Out Your Motherboard Manufacturer and Model
    706,397 views
    nVidia Chips Comparison Table
    679,245 views
    Connecting Two PCs Using a USB-USB Cable
    593,556 views
    How To Correctly Apply Thermal Grease
    562,559 views
    AMD ATI Chips Comparison Table
    560,205 views
    ATI Radeon X1300 Pro Review
    487,973 views
    ATI Radeon X1600 XT Review
    477,132 views
    How To Perform a BIOS Upgrade
    394,592 views
    Sempron vs. Athlon XP
    338,547 views

    Latest Threads in Our Forums
    Dell Inspiron 6000 Powers but will not boot...
    by Merman
    Ultra X4 500 W Power Supply Review
    by Merman
    IN WIN LAN Party in Southern California
    by Hardware Secrets Team
    Getting A Hard Copy
    by Trevorrross
    Am I Making The Right Choice?
    by need2know
    Is it available to mount the Zalman cooler?
    by Olle P
    dsl modem prob
    by Sherry
    Seagate Barracuda XT 2 TB Hard Disk Drive Review
    by Hardware Secrets Team
    Overclocking a dell xps 410
    by 6dracing
    How to recover mp3's, pdf & chm files, applications from formated harddrive partition
    by tomahawk 1705
    .:: Visit Our Forums ::.


    © 2004-9, Hardware Secrets, LLC. All rights reserved.
    Advertising | Legal Information | Privacy Policy
    All times are Pacific Standard Time (PST, GMT -08:00)