iXBT Labs - Computer Hardware in Detail






Intel D845PESV i845PE Based Mainboard

The company keeps to its traditions: minimal functionality, minimal capabilities and the same PCB for two form-factors (ATX and mATX) - hence so much empty space on the textolite on the left. We've got this board in the OEM package. 


  • Documentation: concise user manual in English; 
  • Cables: FDD, ATA66/100/133; 
  • Bracket for the rear computer panel; 
  • CD containing: 
    • drivers;
    • user guide in PDF; 
    • Intel Active Monitor (for system monitoring); 
    • DirectX 8.1; 
    • Adobe Acrobat Reader; 
    • NTI CD-Maker 2000 Standard; 
    • RealOne; 
    • DFX for RealOne; 
    • Macromedia Shockwave 8 Test; 
    • Norton Internet Security 2002 with Antivirus. 

The layout has typical drawbacks: audio-ins are in front of the PCI, it's difficult to handle the memory modules when a video card is installed and because of multiple cables around the memory. It's not difficult to reach the only jumper when the board is already installed. Its functions are shown on the textolite. 

The 4-channel switching voltage regulator incorporates 3 capacitors of 3300 uF, 4 of 1000 uF and several less capacious ones. 

The following controllers are integrated: 

  • audio controller based on the chipset's capabilities and Analog Devices AD1981B AC'97 codec supporting 4.1 audio systems and having connectors for front audio inputs/outputs; 
  • network controller based on the chipset's capabilities and supporting 10BaseT/100BaseTX. 

+5 V supplied in the StandBy mode is indicated with the LED. 

Non-unsoldered connectors: CNR slot. 

The system monitoring is supported by the SMSC LPC47M172-NR chip. What is controlled: 

  • processor voltage, +3.3, +5 and +12 V; 
  • speed of 2 fans; 
  • temperatures of the processor (a built-in sensor) and the board (a built-in sensor). 

There are 2 connectors for adjustable and 1 for unadjustable connection of fans. 

Brief characteristics of the board: memory slots - 2 DDR SDRAM; expansion slots - AGP/ 6 PCI; I/O ports - 1 COM/ LPT/ 2 PS/2/ 6 USB 2.0; dimensions - 305x210 mm. 

Adjustment can be carried out with:

jumpers and switches Configuration jumper Normal/ Config/ BIOS Recovery
BIOS based on Intel 6.00 Setup of memory timings + CAS Latency, RAS Active To Precharge, RAS to CAS Delay, RAS Precharge
Setup of memory frequency + Auto, DDR266, DDR333
Setup of AGP bus -  
Setup of PCI bus -  
Changeable scaler of AGP and PCI buses -  
Manual assignment of interrupts +  
Changeable FSB frequency -  
Changeable CPU multiplier + x8-x39
Changeable core voltage -  
Changeable memory voltage -  
Changeable chipset voltage -  
Changeable AGP bus voltage -  

We used the BIOS P02 as the latest available version. 

The board will be a good choice for those users who are not interested in overclocking and who prefer external peripheral solutions to integrated ones. 

Test results: 


Dmitry Mayorov (destrax@ixbt.com

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