Jetway P4MFA (VIA P4M266) Mainboard
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Mainboards of this company are always very colorful, and this time the
PCB is dark purple with lilac connectors and a dark green heatsink. The
main peculiarity of the board is support of both memory types (SDR and
DDR SDRAM). The board ships in the OEM package.
Accessories:
- Documentation: a user manual in English;
- Cables: 1 ATA66/100/133, and 1 FDD;
- Bracket with D-Sub connector;
- CD with software including:
- drivers;
- PC-Cillin 2000;
- Magic BIOS;
- Recovery Genius;
- Award WinFlash;
- Several system monitoring utilities;
- DirectX 7 and 8.
As usual, there are some downsides in the layout: audio-ins are between
the AGP slot and a back panel of the computer, and in the left-hand corner
connectors and switches are located too close to each other. 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 14 capacitors
of 1500 uF.
The following controllers are integrated:
- audio controller based on the Avance Logic ALC201A AC'97 codec with a connector
for front audio-outs.
Non-unsoldered connectors: RJ45 and USB2 connectors and several chips.
The system monitoring is supported by the Winbond W83697HF chip. What
is controlled:
- processor voltage (+3.3, +5 and +/-12 V), VBAT and +5 V Standby;
- 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 connection of fans and 1 for non-adjustable
connection.
Brief characteristics of the board: memory slots - 2 DDR SDRAM
+ 1 SDR SDRAM; expansion slots - AGP/ 5 PCI/ CNR; I/O ports - 2 COM/ LPT/
2 PS/2/ 4 USB 1.1; dimensions - 305x210 mm.
Adjustment can be carried out with:
| jumpers and switches |
Jumper to clear up the CMOS |
 |
| Jumper to start up computer with PS/2 devices |
|
| BIOS based on the 6.00PG version from Phoenix-Award |
Setup of memory timings |
+ |
RAS Active Time, RAS Precharge Time, RAS To CAS Delay, CAS Latency,
Bank Interleave, DRAM Command Rate |
| Setup of memory frequency |
+ |
100/133 MHz |
| Setup of AGP bus |
+ |
|
| Setup of PCI bus |
+ |
 |
| Changeable scaler of AGP and PCI buses |
- |
|
| Manual assignment of interrupts |
- |
|
| Changeable FSB frequency |
+ |
100-200 MHz in 1 MHz steps |
| Changeable CPU multiplier |
+ |
x8-x50 |
| Changeable core voltage |
+ |
1.6-1.85 V in 0.025V steps |
| Changeable memory voltage |
+ |
2.5, 2.6, 2.7 and 2.8V |
| Changeable chipset voltage |
- |
|
| Changeable AGP bus voltage |
+ |
1.5 and 1.6 V |
We used the latest available version of the BIOS - A03.
Unfortunately, the sample we got had quite low 2D quality: in the resolution
above 640x480 the image was too blurry. I hope this is a drawback of the
given sample. On the whole, the board is not very efficient (but I think
because of the chipset), but it offers a wide range of settings (though
I don't think they will be made use of because boards with an integrated
graphics adapter are bought not by those who want to overclock them and
set the maximum possible performance).
Test results:
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