500_8.gif (4460 bytes)

Please be sure to follow the component installation guidlines on the FIC Mainboard installation page.
101.GIF (685 bytes)

RAM Configuration:

  • Modules can be installed in many different combinations.

  • When using SIMMS it is important to install in matching pairs.

  • Dimms of different sizes may be used at the same time.

  • When using DIMMS you must use 3.3v (unbuffered) EDO/SDRAM.

  • FIC recommends that you do not mix SIMMS & DIMMS as this could adversly effect the your system.

These are only some possible RAM combinations.*

Total Memory(MB)

 SIMM 1 & 2
Bank 1		 SIMM 3 & 4
Bank 2		 DIMM 1
(Bank 0)1		 DIMM 2
(Bank 1)
8 4 & 4      
    8  
16 8 & 8      
4 & 4 4 & 4    
    16  
    8 8
32 16 & 16      
    32  
8 & 8 8 & 8    
    16 16
64 32 & 32      
16 & 16 16 & 16    
    64  
    32 32
128 64 & 64      
32 & 32 32 & 32    
    64 64
    128  
256 128 & 128      
64 & 64 64 &64    
    256  
    128 128
512 128 & 128 128 & 128    
    256 256

*The above table does not  list all possible memory configurations.

101.GIF (685 bytes)

DRAM Jumper Settings:

  • The VIA MVP3 chipset on your MB allows for a great deal of flexibility when choosing memory for your system. This chipset enables you to run your memory at the Front Side Bus (FSB) frequency, or at the frequency of the AGP slot. (Twice the PCI frequency.)
  • CLK4 & SDRAM1 control the DIMM frequency on the VA-503+.

Memory Speed =

Set Jumpers to:
CLK4 SDRAM1
FSB 1 & 2 2 & 3
AGP 2 & 3 1 & 2

101.GIF (685 bytes)

 

SDRAM1 & SDRAM2 control the Northbridge Chip.

  • There are four devices connected directly to the Northbridge chip; the CPU, the PCI bus, the main
    memory and the AGP slot.

Northbridge Setting =

Set Jumpers to:
SDRAM2 SDRAM3
2 2 & 3 2 & 3
2.5* 1 & 2 1 & 2
3 1 & 2 2 & 3

101.GIF (685 bytes)

Setting CPU External Frequency:

  • CLK1, CLK2, CLK3 determine the CPU External Frequency (CEF), also known as FSB.
CEF  = Set Jumpers to:
CLK1 CLK2 CLK3
66 MHz 1 & 2 1 & 2 1 & 2
68.5 MHz 2 & 3 2 & 3 2 & 3
75 MHz 1 & 2 2 & 3 1 & 2
83 MHz 2 & 3 2 & 3 1 & 2
90 MHz * 2 & 3 1 & 2 2 & 3
95 MHz** 2 & 3 1 & 2 2 & 3
100 MHz 1 & 2 1 & 2 2 & 3
112 MHz 1 & 2 2 & 3 2 & 3
124 MHz** 2 & 3 1 & 2 1 & 2

*This setting available only on versions  with W48S87-27A clock chip.
**This setting available only on versions  with W127 clock chip.

101.GIF (685 bytes)

Setting the Frequency Multiplier:

  • FREQ1, FREQ2, FREQ3 control the ratio of internal CPU frequency to CEF.
Ratio = Set Jumpers to:
FREQ1 FREQ2 FREQ3
2 x 2 & 3 1 & 2 1 & 2
2.5 x 2 & 3 2 & 3 1 & 2
3 x 1 & 2 2 & 3 1 & 2
3.5 x 1 & 2 1 & 2 1 & 2
4 x 2 & 3 1 & 2 2 & 3
4.5 x 2 & 3 2 & 3 2 & 3
5 x 1 & 2 2 & 3 2 & 3
5.5 x 1 & 2 1 & 2 2 & 3

101.GIF (685 bytes)

Setting CPU Core Voltage:

  • The VR jumpers control the CPU core voltage.
Core Voltage = Cover Jumpers Core Voltage = Cover Jumpers
2.0v All Open 2.7v 3 & 4, 5 & 6, 7 & 8
2.1v 7 & 8 2.8v 1 & 2
2.2v 5 & 6 2.9v 1 & 2, 7 & 8
2.3v 5 & 6, 7 & 8 3.0v 1 & 2, 5 & 6
2.4v 3 & 4 3.1v 1 & 2, 5 & 6, 7 & 8
2.5v 3 & 4, 7 & 8 3.2v 1 & 2, 3 & 4
2.6v 3 & 4, 5 & 6 3.3v 1 & 2, 3 & 4, 7 & 8

101.GIF (685 bytes)

CMOS Settings:

The settings in your CMOS are extremely important to optimal system performance. Given the amount of hardware options available on any given system it would be unreasonable to suggest settings that would be appropriate for all possible variables.

It would be more beneficial for those interested in optimizing thier system performance to become educated, regarding the options available through the CMOS Setup Utility, and make the best choices considering the hardware components installed in thier system.

One of the best educational tools for CMOS is located @ http://www.lemig.umontreal.ca/bios/bios_sg.htm

101.GIF (685 bytes)

101.gif (685 bytes)

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Last modified: Monday January 04, 1999.
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