SOYO SY-6BA+ IV user manual CPU Host/PCI Clock, CPU Ratio

Hardware Installation SY-6BA+ IV

(2) CPU Frequency

Available [CPU Frequency] settings on your SY-6BA+ IV Motherboard are detailed in the following table.

CPU Frequency (MHz)

Manual		350MHz (100 x 3.5)
266MHz (66 x 4	)	400MHz (100 x 4	)
300MHz (66 x 4.5)		450MHz (100 x 4.5)
333MHz (66 x 5	)	500MHz (100 x 5	)
366MHz (66 x 5.5)		550MHz (100 x 5.5)
400MHz (66 x 6	)	600MHz (100 x 6	)
433MHz (66 x 6. 5)		650MHz (100 x 6.5)
466MHz ( 66 x 7	)	700MHz (100 x 7	)
500MHz ( 66 x 7.5)

Select the working frequency of your Pentium® III, Pentium® II, Celeron™ processor among these preset values.

Note: Mark the checkbox that corresponds to the working frequency of your Pentium® III, Pentium® II, Celeron™ processor in case the CMOS configuration should be lost.

If you set this field to [Manual], you are then required to fill in the next two consecutive fields: (a) the CPU Host/PCI Clock, and (b) the CPU Ratio.

(a) CPU Host/PCI Clock

CPU Host / PCI Clock

o66/33	o95/31	o115/38	o124/41	o140/35
o75/37	o100/33	o117/39	o126/31	o142/35
o78/39	o105/35	o118/39	o133/33	o144/36
o81/40	o110/36	o120/40	o135/33	o150/37
o83/40	o112/37	o122/37	o137/34	o155/38
o90/30	o113/37	o124/31	o138/34

Under this item you find the frequencies your PCI and AGP slots run at. These frequencies are derived from the CPU host clock in the following way: CPU host clock > 100MHz PCI = CPU host clock /3, CPU host clock < 100MHz PCI = CPU host clock /2,

(b) CPU Ratio

After you have selected the CPU Host/ PCI Clock, choose the right multiplier for the CPU. CPU Ratio options are:

o x 2	o x 2.5	o x 3	o x 3.5	o x 4
o x 4.5	o x 5	o x 5.5	o x 6	o x 6.5
o x 7	o x 7.5	o x 8

The CPU frequency is then defined as [host clock freq.] x [multiplier], and

should the working frequency of your CPUs processor.

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