Go Back   Hardware Canucks > NEWS & REVIEWS > Member Reviews

    
Reply
 
LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old June 6, 2011, 06:37 AM
Rookie
 
Join Date: Jun 2011
Posts: 6
Default [JRV] Enermax EMG900EWT - 900W PSU

Enermax EMG900EWT


Enermax EMG900EWT and its accessories.











Enermax EMG900EWT Product Information.





Specifications of the Enermax EMG900EWT. The 12V1 rail supplies +12V power to 24P Mainboard, 8P CPU, and 4+4P (8P) CPU connectors.







Outer appearances of the Enermax EMG900EWT. The fan used in the PSU has seven (7) blades.











The cable management of Enermax EMG900EWT is partially modular. Native cables are fixed.













Acoustic Noise

The test was carried out in an anechoic chamber with a background noise of not more than 16.6 dBA. A sound level meter, which was placed 30 cm away from the PSU, was used to measure the acoustic noise (in dBA) emitted by the power supply, whilst the audio output of the sound level meter was connected to a dynamic signal analyzer for recording the sound level pressure (SPL) spectrum.





RESULTS & DISCUSSIONS

Fig. A2 shows the measured dBA vs output loading for OCZ600SXS and Enermax Modu87+ EMG900EWT. At 600W, Enermax Modu87+ EMG900EWT is approximately 20 dBA quieter than the OCZ600SXS. Thanks to the SpeedGuard technology of the PSU, the fan rotates at speed not more than 1000 rpm at full load (see Fig. A3). Hence, the SPL of the PSU at full load is only about 25 dBA, which is considered relatively quiet. Fig. A4 shows the SPL spectrum of background noise, whereas Fig. A5 compares the SPL spectra of OCZ600SXS and Enermax Modu87+ EMG900EWT at 600W. The SPL spectra when the Enermax Modu87+ EMG900EWT supplies 600W and 900W are depicted in Fig. 6.














Power Efficiency Test







RESULTS & DISCUSSIONS

Fig. B3 shows the measured efficiency vs output power for OCZ600SXS and Enermax Modu87+ EMG900EWT. Although this work did not follow the usual loading criteria for 80% PLUS certification, the measured efficiency of the Enermax Modu87+ EMG900EWT with 50% loading is above 90%. Clearly, the Enermax Modu87+ EMG900EWT is about 6% more efficient than the OCZ600SXS at almost every loading condition.

Fig. B4 shows the input voltage and current waveforms when the Enermax Modu87+ EMG900EWT supplies 900W, whilst Fig. B5 shows the harmonic spectrum of the input current. The input power factor and the current total harmonic distortion at output power of 900W are 0.98 and 11.14%, respectively..

The overcurrent protection of the PSU was tested and confirmed to work effectively.










Awards

Reply With Quote
  #2 (permalink)  
Old September 24, 2011, 04:02 AM
overclockerd's Avatar
Trial Member
 
Join Date: Sep 2011
Location: Greece
Posts: 1

My System Specs

Default

Congrats, it's an amazing review. I love Enermax PSU's i am still using Enermax Liberty 400 watt and it works perfect after 5 years. Well done :)
__________________
SIGPIC][/SIGPIC]MY PC: Core 2 Duo 4400 2 GHZ Conroe 2 MB L2 Cache(1+1),Twin_Mos 2 GB(2x1GB) 667 MHz,Asrock 4Coredual-VSTA,twintech nVidia GT430 1.024 MB ,Enermax Liberty 400 Watt,Creative SoundBlaster Audigy 2 Value,640 GB Western digital black caviar,Lacie 250 GB(Εξωτερικός),Razer imperator mouse,logitech keyboard,LG DVD Rom,Nec DVD-RW, Windows XP X86 sp3
Reply With Quote
  #3 (permalink)  
Old December 12, 2011, 08:13 AM
Trial Member
 
Join Date: Dec 2011
Posts: 1
Default

Registered to say thanks for the review.
Reply With Quote
Reply


Thread Tools
Display Modes

Similar Threads
Thread Thread Starter Forum Replies Last Post
Enermax Expanding MODU87+ Lineup with 800W and 900W PSUs FiXT Press Releases & Tech News 3 July 6, 2010 06:50 PM
Enermax Refreshes Their Mainstream PSU's Soultribunal Press Releases & Tech News 5 February 2, 2010 12:18 PM
Update On New Enermax PRO87+ and MODU87+ PSU's Soultribunal Press Releases & Tech News 0 December 16, 2009 10:42 AM
Enermax PSU for Asus Blitz Edition Shredder Power Supplies 2 August 29, 2008 03:40 PM
My new Enermax Galaxy PSU r00tman Power Supplies 13 April 29, 2007 12:02 PM