12
clock. Just put the colored yellow jumper ca p to the speed your CPU rea lly
is (the CPU interna l/externa l clock ra tio a nd ISA clock will be
a utomatica lly selected by setup the JP15)
JP15
7
5
9
0
1
0
0
1
2
0
1
3
3
1
5
0
1
6
6
1
8
0
2
0
0
MHz
Rega rding Cyrix CPU clock setting, plea se referto Appendix A for deta il.
3.3.4 CPU Voltage Select
(JP10)
The defa ult 3.38V is for most CPU tha t runs 3.3V. Others volta ge is
reserved for future a nd other bra nd CPU use. Check your CPU vendor for
more informa tion.
Pe ntium
Sock e t 7
3.38 (def ault)
3.52V
2.83
2.70
2.50
JP10
JP5
P54C
1
JP20
1
(def ault)
or
Pe ntium
Sock e t 7
3.38
3.52V
2.83
2.70
2.50
JP10
JP5
P55C
1
JP20
1
3.3.5 P54C/P55C Select
(JP5 & JP20)
CPU
JP5
JP20
Note
P54C/P54CS/P54CT 2-3, 2-3
2-3
*Defa ult
P55C
1-2, 1-2
1-2
3.4 Cache Memory
The ca che memory support for pipilined burst SRAM, this will peerform a t
lea st 10% fa ster tha n tra ditiona l a synchronous SRAM. Ma nufa cture defa ult is
512K on-boa rd.