Tyan Computer TYAN S1472 ATX User Manual
Page 10
10
S1472-001-01 http://www.tyan.com
Memory Voltage:
5V is the default. Some EDO memory uses 3.3V.
Damage to system can result if these are set incorrectly!
Volts J27
J28
J29
J30
J3
J4
J5
Default 5V
On
On
On
On
Off
Off
Off
3.3V
Off
Off
Off
Off
On
On
On
Tag RAM Setting: J8
J8
Enable on-board Tag
on
Disable on-board Tag
off
(
When using COAST Module with Tag chip
)
SRAM Select: J7
J7
Use on-board 256Kb SRAM
2-3
Upgrade to 512Kb w/256Kb COAST
1-2
CPU Multiplier: J21 and J22
J21
J22
Multiplier
off
off
x1.5
on
off
x2
on
on
x2.5
off
on
x3
Host Bus Setting: J31
J31
Host Speed
PCI Speed
1-2,3-4 50MHz
25MHz
1-2
66.67MHz
33.33MHz
3-4
60MHz
30MHz