iXBT Labs - Computer Hardware in Detail






AOpen AX4R Plus (Intel E7205) Mainboard

The board offers a rich suite of functions like other solutions built on expensive E7205 chipset. 


  • Package of the standard design; 
  • Documentation: user manual and poster with brief installation steps in English; 
  • Cables: SATA, ATA66/100/133, ATA33 and FDD; 
  • Bracket for the rear computer panel; 
  • Diskette with drivers for SATA RAID; 
  • 2 CDs containing: 
    • drivers; 
    • user guides for a number of company's boards in PDF; 
    • system monitoring utilities; 
    • DirectX 8.1; 
    • Adobe Acrobat Reader 5.05; 
    • AOConfig; 
    • AOModify; 
    • AOpen EzSkin; 
    • Pro Magic 6.0; 
    • DocuCom Reader (for reading PDF files); 
    • E-Color; 
    • Norton Antivirus 2002. 

The downsides are usual: audio-ins and Serial ATA connectors make it difficult to plug in cables. IDE and FDD connectors placed behind PCI slots worsen ventilation and prevent installation of full-sized PCI cards. A video card inserted may lock memory modules. It can be difficult to reach some jumpers when the board is already installed. Their functions are shown on the textolite. 

The 3-channel switching voltage regulator incorporates 7 capacitors of 3300 uF and 2 of 2200 uF. 

Controllers integrated: 

  • audio controller based on the chipset and Avance Logic ALC650 AC'97 codec; 5.1 audio system supported, front audio inputs/outputs and SPDIF connectors provided; 
  • Realtek RTL8100BL based network controller with 10BaseT/100BaseTX; 
  • Serial ATA RAID controller based on the Silicon Image Sil3112ACT144 chip with RAID 0, 1 supported through SATA150 protocol.

Technologies supported: 

  • AOpen JukeBox (CD playback and FM tuner without the OS booted); 

  • Die Hard BIOS (a connector for a back-up BIOS chip provided); 
  • Dr.Voice II (voice messages on problems during the OS booting). 

+5 V supplied in the StandBy mode is indicated with the onboard LED. One more LED blinks while the POST procedure is running and gives steady light on its completion.

On the back you can see a plate that prevents twisting of the textolite in case of powerful CPU coolers.

Non-unsoldered connectors: none. 

System monitoring is supported by Winbond W83627HF-AW chip. It controls: 

  • processor voltage, +3.3, +5 and +12 V; 
  • speed of 3 fans; 
  • temperatures of the processor (built-in sensor) and the board (two built-in sensors). 

There are 2 connectors for adjustable and 1 for unadjustable connection of fans (connected to a fan on the MCH heatsink). 

Brief board's characteristics: memory slots - 4 DDR SDRAM; expansion slots - AGP/ 6 PCI/ CNR; I/O ports - 2 COM/ LPT/ 2 PS/2/ 6 USB 2.0; dimensions - 305x245 mm. 


with jumpers and switches Jumper to clear up the CMOS  
Jumper for starting up computer from a PS/2 keyboard  
Jumper turning PC Speaker on/off  
Jumper selecting a mode of Die Hard BIOS function Rescue/Normal
BIOS based on Phoenix AwardBIOS 6.00PG Setup of memory timings + CAS Latency, RAS to CAS Delay, RAS Precharge, Active to Precharge Delay
Setup of memory frequency -  
Setup of AGP bus -  
Setup of PCI bus -  
Changeable scaler of AGP and PCI buses + AGP(PCIx2) = 66.5-80.8 MHz in ~1 MHz steps
Manual assignment of interrupts -  
Changeable FSB frequency + 66-255 MHz in 1MHz steps
Changeable CPU multiplier -  
Changeable core voltage + 1.1-1.85 V in 0.025V steps
Changeable memory voltage + 2.5, 2.55, 2.6, 2.65 V
Changeable chipset voltage -  
Changeable AGP bus voltage + 1.5, 1.55, 1.6, 1.65 V

We used the BIOS R1.04 as the latest available version. 

This is a good board with decent functionality (though it yields to some competitors on the same chipset) and it looks a good choice for those who want a high-performance board at a relatively low price. 

Test results: 


Dmitry Mayorov (destrax@ixbt.com

Write a comment below. No registration needed!

Article navigation:

blog comments powered by Disqus

  Most Popular Reviews More    RSS  

AMD Phenom II X4 955, Phenom II X4 960T, Phenom II X6 1075T, and Intel Pentium G2120, Core i3-3220, Core i5-3330 Processors

Comparing old, cheap solutions from AMD with new, budget offerings from Intel.
February 1, 2013 · Processor Roundups

Inno3D GeForce GTX 670 iChill, Inno3D GeForce GTX 660 Ti Graphics Cards

A couple of mid-range adapters with original cooling systems.
January 30, 2013 · Video cards: NVIDIA GPUs

Creative Sound Blaster X-Fi Surround 5.1

An external X-Fi solution in tests.
September 9, 2008 · Sound Cards

AMD FX-8350 Processor

The first worthwhile Piledriver CPU.
September 11, 2012 · Processors: AMD

Consumed Power, Energy Consumption: Ivy Bridge vs. Sandy Bridge

Trying out the new method.
September 18, 2012 · Processors: Intel
  Latest Reviews More    RSS  

i3DSpeed, September 2013

Retested all graphics cards with the new drivers.
Oct 18, 2013 · 3Digests

i3DSpeed, August 2013

Added new benchmarks: BioShock Infinite and Metro: Last Light.
Sep 06, 2013 · 3Digests

i3DSpeed, July 2013

Added the test results of NVIDIA GeForce GTX 760 and AMD Radeon HD 7730.
Aug 05, 2013 · 3Digests

Gainward GeForce GTX 650 Ti BOOST 2GB Golden Sample Graphics Card

An excellent hybrid of GeForce GTX 650 Ti and GeForce GTX 660.
Jun 24, 2013 · Video cards: NVIDIA GPUs

i3DSpeed, May 2013

Added the test results of NVIDIA GeForce GTX 770/780.
Jun 03, 2013 · 3Digests
  Latest News More    RSS  

Platform  ·  Video  ·  Multimedia  ·  Mobile  ·  Other  ||  About us & Privacy policy  ·  Twitter  ·  Facebook

Copyright © Byrds Research & Publishing, Ltd., 1997–2011. All rights reserved.