Hardware Installation 13
JP1, JP6: SDRAM Clock Setting
SDRAM
Clock
AGP Clock
(66MHz)
CPU Clock
(default)
SDRAM clock
synchronous with
AGP clock.
SDRAM clock
synchronous with
CPU clock.
JP1
JP6
3
1
3
1
1
3
1
3
Note
Note:
The default settings for JP1 and JP6 are set the way
that SDRAM clock is synchronized with CPU clock, if
CPU is 100MHz clock and SDRAM can't comply
with CPU clock, then, use the “SDRAM
asynchronous with CPU” setting (i.e., SDRAM clock
is always 66MHz), or you need to change SDRAM
so that it is compliant with 100MHz spec.
JP7, JP8: Chipset Clock Settings
JP7 and JP8 settings must depend on the CPU clock. The
system will not boot up with wrong setting.
Chipset
Clock
60/66/75 MHz
(
÷
2)
83 MHz
(
÷
2.5)
100 MHz
(
÷
3)
JP7
JP8
3
1
JP7
JP8
3
1
JP7
JP8
3
1
JP7
JP8
