Step 3. Configure Memory
Your board comes with four DIMM sockets, providing support for up to 1.5GB of main memory using unbuffered and registered DIMM modules from 8MB to 256/512MB. 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 (Chapter 3), appropriate memory modules must be used. For 66MHz DRAM speed, use PC66 memory; for 100MHz DRAM speed, use PC100 memory; for 133MHz DRAM speed, use PC133 memory.
Memory Configuration Table
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| Number of |
| DIMM 1 |
| DIMM 2 |
| DIMM 3 |
| DIMM 4 |
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| Memory Modules |
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| 1 |
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| 1st |
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Hardware Installation |
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| 2 |
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| 2nd |
| 1st |
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| Memory Module |
| 8/16/32/64/128/256/512 MB |
| 8/16/32/64/128/256 MB |
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| 2nd |
| 1st |
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| 3rd |
| 2nd |
| 1st |
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| RAM Type |
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| SDRAM |
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| Size (MB) |
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| (For DIMM3 & DIMM4) |
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| Note:Always install memory modules in the order prescribed in this table. |
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Step 4. CPU B21 and A14 Settings: JP8 and JP9
For certain Intel CPUs, the multiplier is not locked such that setting a multiplier higher than specified on the CPU is possible. For technical details read the following:
Your PII /III 100/66 MHz FSB CPU has an input pin B21 (100/66# signal) to tell it what FSB frequency it is running at; The PIII 133 MHz FSB CPU has two pins B21and A14 (133/100# signal). JP8 and JP9 are connected to the B21 and A14 input respectively and are used to tell CPU its FSB speed.
The actual FSB Frequency is however set through the BIOS and it may therefore differ from the Frequency specified to the CPU through JP8 & JP9.
Because some INTEL CPUs have their multipliers limited at a FSB Frequency of 100MHz and higher, telling the CPU that it is running at 66MHz through JP8 & JP9 while setting a different (higher) FSB Frequency in the BIOS may allow the user to set a higher multiplier value. Doing so will however force your CPU to operate out of its specifications, and therefore SOYO can not guarantee the proper functioning of your system.
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