Intel Pentium CPU Clock Multiplier Factor
Clock Factor
D S 1
D S 2
Clock Factor x External Clock=Internal Clock Speed (in MHz)
1 . 5
O F F
O F F
1 . 5 x 5 0 = 7 5 ; 1 . 5 x 6 0 = 9 0 ; 1 . 5 x 6 6 = 1 0 0
2
O F F
O N
2 x 6 0 = 1 2 0 ; 2 x 6 6 = 1 3 3
2 . 5
O N
O N
2 . 5 x 6 0 = 1 5 0 ; 2 . 5 x 6 6 = 1 6 6
3
O N
O F F
3 x 6 0 = 1 8 0 ; 3 x 6 6 = 2 0 0
Note:
The factory default setting 2
*The internal clock speed also indicates which Pentium it is for e.g. “75” is for P75, “90” is for P90 etc.
Intel Pentium CPU Vcore/Vio Settings
Vcore/Vio
V C 1
V C 2
V C 3
V C 4
V C 5
V C 6
V C 7
V C 8
2 . 7 V / 3 . 3 V
O F F
O F F
O F F
O F F
O N
O F F
O F F
O N
2 . 8 V / 3 . 3 V
O F F
O F F
O F F
O N
O F F
O F F
O F F
O N
2 . 9 3 V / 3 . 3 V
O F F
O F F
O N
O F F
O F F
O F F
O F F
O N
3 . 3 8 V / 3 . 3 V
O F F
O N
O F F
O F F
O F F
O F F
O F F
O N
3 . 5 2 V / 3 . 3 V
O N
O F F
O F F
O F F
O F F
O F F
O F F
O N
Note:
The factory default setting is 3.38V. (VRE=3.52V, STD/VR=3.38V)
Summary of Contents for PR5
Page 10: ...System Block Diagram ...
