CHAINTECH 7VIF3, Руководство пользователя

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Chapter 2
DDR SDRAM Specifications
Memory Frequency Internal System BUS Frequency
133 MHz 266 MHz
166 MHz (7VIF4 only) 333 MHz (7VIF4 only)
DRAM Specifications
DIMM type: 2.5V, unbuffered 184 pin 64/128/265/512-bit DDR SDRAM.
Module size: Single/double-sided 64/128/256/512Mbytes or 1GBbtes.
Parity: Ether parity or non-parity.
2-4 Connector and Jumper Settings
Connectors are used to link the system board with other parts of the system, including the
power supply, the keyboard, and the various controllers on the front panel of the system
case.
The power supply connector is the last connection to be made while installing a
motherboard. Before connecting the power supply, please make sure it is not connected to
the power source.
Note : All cables are security-proof .
PW1 (ATX Power Supply Connector)
The power cord leading from the system's power supply to the external power source
must be the very last part connected when assembling a system. The ATX power supply
provides a single 20-pin connector interface, which incorporates st/-5V, +/-12V,
optional 3.3V and Soft-power signals. The Soft power signal, a 5V trickle supply is
continuously supplied when AC power is available. When the system is in the Soft-Off
mode, this trickle supply maintains the system in its minimum power state.
The ATX 12V power supply has a new +12V (4-pin) and +5V/3.3V (6-pin) auxiliary
power connector in order to enable the delivery of more +12 VDC and +5/3.3V VDC
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