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Epox MVP3G2 Super7 Motherboard Review
Last updated: 5/31/2000

CPU SUPPORT.  According to Epox, the MVP3G2 will support "Intel Pentium P55C/AMD K6/Cyrix 6x86MX at 133-550MHz."  They also say, 'due to the possibility of processor (CPU) design changes beyond their control, "Frequency support" is not a strict guarantee of future processor support.'  I have tested the G2 with a 500 Mhz K6-2. AMD has not tested the G2 yet, but they have tested the G board with 475 Mhz K6-2 and 450 Mhz K6-3 processors.

A DIP switch in front of the CPU socket is used to set the CPU core voltage.  The most common core voltages are set by turning one of the five switches on and the rest off.  These values are labeled on the motherboard next to their respective switches.  The remaining voltages are selected with a combination of switches and a matrix printed on the motherboard between the cache' chips clearly shows all of the settings.

A header along the left, front uses two jumpers which respectively set the bus clock speed and the multiplier.  Only CPU Plug 'n Play could make configuring the motherboard for a CPU simpler, and not by much.

Specific DIP switch and jumper settings are:

  • Core Voltage: 1.8, 2.0, 2.1, 2.2, 2.3, 2.4, 2.8, 2.9, 3.2V (or turn-off all switches for 3.5 volts (no separate core voltage)

  • FSB: 66, 75, 83, 95,100, 112 Mhz

  • Multiplier: 2X, 2.5X, 3X, 3.5X, 4X, 4.5X, 5X

The chipset is spec'd at a 100 MHz for the front side bus (FSB) and 33 Mhz for the PCI bus.  Additional CPU and PCI speeds can be selected in the CMOS setup as follows:

133/44, 124/41, 112/37, 100/33, & 95/32 (CPU/PCI Mhz)

JUMPERS.  Other than those needed to configure the CPU, the board has only three more jumpers.  The first one sets the SDRAM at 66 Mhz (which is also the AGP frequency) or the CPU Bus Clock.  If you have a 400 Mhz K6-2 and PC100 memory, simply set this jumper for CPU Bus Clock and the CPU bus frequency for 100 Mhz (and the multiplier to 4X).

The second jumper works in conjunction with an ATX power supply and remote power on/off connector which can be connected to a momentary switch on the front panel of the computer case.  The computer can be turned on or off using the momentary switch.  If the jumper (JP4) is enabled, the system can also be turned-on by pressing a keyboard key for a second or two.  So, with an ATX power supply you turn off the  system power by shutting-down Windows 95/98 and you can turn it back on with the keyboard.

The third is used discharge the CMOS and is located in front of the battery.

MEMORY.  System memory coupled to the CPU by the Northbridge with two Winbond 64KBit X 64, 512KByte, 5 ns cache' chips.  The three 168-pin DIMM memory slots can accommodate up to 384 Mbytes of PC-100 or 66 Mhz memory; but,  the 1 MByte of cache' with 8 tag bits will only cache' 256 MBytes of it.  256 Mbytes is, therefore, the practical memory  limit.

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