SOYO SY-7VBA133U quick start Cmos Clear JP5, Configure Memory, Number, RAM Type

SY-7VBA133UQuick Start Guide

Step 3. Configure Memory

Your board recommend a limit of 3 DIMMs or 6 banks at 133 MHz for 1.5GB max memory using unbuffered DIMM modules from 8MB to 512MB. Supports optional ECC (single-bit error correction and multi-bit detection) or EC (error checking) capability separately selectable on a bank-by-bank basis. On this motherboard, DRAM speed can be set independent from the CPU front side bus speed. Depending on the DRAM clock speed setting in the BIOS setup, appropriate memory modules must be used. For FSB 66MHz speed, use PC66 or PC100 memory; for FSB 100MHz speed, use PC66/PC100/PC133 memory; for FSB 133MHz speed, use PC100 or PC133 memory.

Memory Configuration Table

Number of	DIMM 1			DIMM 2	DIMM 3
Memory Modules
RAM Type			SDRAM/ VC SDRAM
Memory Module
		8/16/32/64/128/256/512 MB
Size (MB)

CMOS Clear (JP5)

In some cases the CMOS memory may contain wrong data, follow the steps below to clear the CMOS memory.

1.Clear the CMOS memory by momentarily shorting pin 2-3 on jumper JP5. This jumper can be easily identified by its white colored cap.

2.Then put the jumper back to 1-2 to allow writing new of data into the CMOS memory.

CMOS Clearing	Clear CMOS Data			Retain CMOS Data
	Short pin 2-3 for			Short pin 1-2 to
JP5 Setting	at least 5 seconds to			retain new settings
	clear the CMOS
	1	2	3	1	2	3

Note: You must unplug the ATX power cable from the ATX power connector when performing the CMOS Clear operation.

Hardware Installation

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