iXBT Labs - Computer Hardware in Detail






Abit KX7-333R (VIA KT333) Mainboard

Against the dazzling AT7 this product looks quite modest. But exactly the fact that the former is so unusual the company released one more KT333 based board because such models sell much better than delicatessen. The PCB of the KX7-333R hasn't changed as compared with the KT266A based solutions.


  • Package: a standard design;
  • Documentation: a user manual in English;
  • Cables: 2 ATA66/100/133 and 1 FDD;
  • Bracket with two USB ports;
  • Diskette with drivers for IDE RAID;
  • CD with software including:
    • drivers;
    • user manual in PDF;
    • 3Deep E-Color;
    • Norton Antivirus 2002;
    • Adobe Acrobat Reader;
    • Buzzsoft programs;
    • InterVideo WinDVD;
    • system monitoring utility;
    • DirectX 8.1.

The layout has almost no flaws - the only inconvenience is that the IDE RAID and FDD connectors are behind the PCI slots. It's not difficult to reach jumpers and switches even when the board is already installed. Their functions are shown on the textolite.

The 3-channel switching voltage regulator incorporates 2 capacitors of 4700 uF and 5 of 2200 uF (excellent).

The following controllers are integrated:

  • IDE RAID controller based on the HighPoint HPT372 chip able to connect up to 4 devices via the ATA133 protocol and create RAID 0, 1 and 0+1.

An audio controller is lacking (even an AC'97 codec).

Non-unsoldered connectors: USB3 connector.

The system monitoring is supported by the Winbond W83697HF chip. What is controlled:

  • voltage of processor, +3.3, +5 and +12 V, AGP and memory buses, VBAT and +5 V Standby;
  • speed of 2 fans;
  • temperatures of the processor (thermodiod in processor socket) and the board (a built-in sensor).

There are 2 connectors for adjustable connection of fans and 3 for non-adjustable connection (one is for a fan on a heatsink of the chipset's north bridge).

Brief characteristics of the board: memory slots - 4 DDR SDRAM; expansion slots - AGP/ 6 PCI; I/O ports - 2 COM/ LPT/ 2 PS/2/ 4 USB 1.1; dimensions - 305x245 mm.

Adjustment can be carried out with:

jumpers and switches Jumper to clear up the CMOS
BIOS based on the ver.6.00PG from Phoenix-Award Setup of memory timings + CAS Latency, Bank Interleave, Precharge to Active, Active to Precharge, Active to CMD, DDR DQS Input Delay, DDR DQS Output Delay, MD Drive Strength, CMD Drive Strength, Enhance DRAM Performance, DRAM Access, Queue Depth, Command Rate, Feedback Delay
Setup of memory frequency + 100, 133 and 166 MHz
Setup of AGP bus +
Setup of PCI bus +
Changeable scaler of AGP and PCI buses + FSB:AGP:PCI = 3:2:1, 4:2:1 and 5:2:1
Manual assignment of interrupts +
Changeable FSB frequency + 100-250 MHz in 1 MHz steps
Changeable CPU multiplier + x5-x13
Changeable core voltage + 1.1-1.85 V in 0.025V steps
Changeable memory voltage + 2.55, 2.65, 2.75 and 2.85 V
Changeable chipset voltage + 3.5 and 3.65 V
Changeable AGP bus voltage -

We used the latest available version of the BIOS - 7M.

This is a standard Abit's product with rich overclocking possibilities, moderate functionality and a lacking audio controller.

Test results:

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