iXBT Labs - Computer Hardware in Detail






ECS P4S5A (SiS 645) Mainboard

Some time ago we tested a board on this chipset from this company, it was PCChips M930. Now it has changed its colors and name.


  • Package: unsophisticated design;
  • Documentation: a user manual in English (60 pages);
  • Cables: 1 ATA66/100 and 1 FDD (has to clips to fix the cable in the connectors);
  • Bracket for the rear panel since there is a network controller;
  • CD with software including:
    • drivers;
    • system monitoring programs;
    • CDGhost 21st 3.6 - CDD-ROM emulation program;
    • Language Genius 21st 2.0;
    • MediaRing Talk 7.2;
    • Pageabc;
    • PC-Cillin 2000 7.51;
    • Recovery Genius 21st;
    • SuperVoice.

The layout is not excellent: IDE connectors are behind PCI slots (it can prevent installation of full-sized expansion cards), but it was the only way-out as the board supports both SDR and DDR SDRAM.

The feed circuits incorporate 8 capacitors of 3300 uF.

There are the following controllers: AC'97 codec ALC201A from Avance Logic supporting SPDIF, though the respective connector is lacking, but there is a connector for audio-outs; ITE I/O IT8705F controller supporting MultiMedia Card and Secure Digital Card Reader, but the connectors are lacking; a network adapter supporting 10/100 Mbps modes (based on functionality of the SiS961 south bridge).

There are no any non-unsoldered elements on the board.

Brief characteristics of the board: memory slots - 2 DDR SDRAM and 2 SDR SDRAM; expansion slots - AGP/ 5 PCI/ AMR; I/O ports - 2 COM/ LPT/ 2 PS/2/ 4 USB (though the chipset supports 6); dimensions - 305x245 mm.

Adjustment can be carried out with:

jumpers and switches Jumper to clear up CMOS
BIOS based on v1.21 from AMI Setup of memory timings + CAS Latency, Timing Setting Mode (analog of System Performance), MA 1T/2T Select (analog of DRAM Command Rate)
Setup of memory frequency + DDR200, 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 - x50
Changeable core voltage -
Changeable memory voltage -
Changeable chipset voltage -
Changeable AGP bus voltage -

The board just slightly differs from the PCChips M930. Although this model is scanty in settings and functions, its price is so low that it will certainly become popular.

Test results:

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