iXBT Labs - Computer Hardware in Detail






Abit NV7-133R (NVIDIA nForce 415-D) Mainboard

Abit didn't want to make a full-size board on the NVIDIA's chipset with an integrated graphics core and used only the mATX format (integrated graphics, even IGP128, is still a solution for entry-level computers). But the company couldn't help using an analog of the nForce 420-D with its excellent speed and functions but without a comparatively weak integrated graphics, that is why it squeezed everything it could out of the nForce 415-D.


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

The layout is good; but there are some downsides: IDE RAID connectors are located behind the PCI slots, and power connectors and audio-ins are between the AGP slot and a back panel of the computer. It's not difficult to reach the only jumper even when the board is already installed. Its function is shown on the textolite.

The 3-channel switching voltage regulator incorporates 9 capacitors of 1200 uF and several less capacious ones.

The following controllers are integrated:

  • audio controller based on the chipset's capabilities and Avance Logic ALC650 AC'97 codec, supporting acoustic systems 5.1;
  • network controller based on the chipset's capabilities supporting 10BaseT/100BaseTX;
  • 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;
  • USB 2.0 bus controller based on the VIA VT6202 chip.

Non-unsoldered connectors: VGA connector (it means that Abit has or had plans on boards with an integrated graphics core (on nForce 420-D) based on a full-sized PCB).

The system monitoring is supported by the Winbond W83627HF-AW chip. What is controlled:

  • processor voltage (+3.3, +5 and +12 V), AGP bus, VBAT and +5 V Standby;
  • speed of 3 fans;
  • temperatures of the processor (a built-in sensor) and the board (a built-in sensor).

There are 3 connectors for adjustable connection of fans.

Brief characteristics of the board: memory slots - 3 DDR SDRAM; expansion slots - AGP/ 5 PCI; I/O ports - 2 COM/ LPT/ 2 PS/2/ 4 USB 1.1/ 4 USB 2.0; 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, Memory Timings
Setup of memory frequency + Auto, FSB:MEM = 3:4 and 1:1
Setup of AGP bus +
Setup of PCI bus -
Changeable scaler of AGP and PCI buses + FSB:AGP = 3:2, 3:1.5, 4:2(???) and 4:1.5
Manual assignment of interrupts +
Changeable FSB frequency + 100-200 MHz in 1 MHz steps
Changeable CPU multiplier + x5-x12.5
Changeable core voltage + 1.1-1.85 V in 0.025V steps
Changeable memory voltage -
Changeable chipset voltage -
Changeable AGP bus voltage -

We used the latest available version of the BIOS - 84.

The complete functionality of the full-sized board excellently gets along with the used chipset - the solution will easily find its customers ready to pay for everything at once.

Test results:

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