Transcend Information INTEL SOCKET 370 CELERON SERIES TS-ABX31 - Manual (Page 10)

2.4 66/100MHz System Configuration
The jumper 2 (JP2) allows you to set FSB (Front Side Bus) to be 66 or 100MHz configuration.
When you set FSB to 66MHz, you can select the system bus frequency from 66MHz to 83.3MHz
through “CPU Host Clock (CPU/PCI)” of “Chipset Features Setup” in BIOS (Please refer to page
26). When you set FSB to 100MHz, you can select the system bus frequency from 100MHz to
150MHz through “CPU Host Clock (CPU/PCI)” of “Chipset Features Setup” in BIOS (Please
refer to page 26).
NOTE: Because Celeron socket 370 CPU now can support 66MHz FSB only, we strongly
recommend that you set JP2 as 66MHz. Otherwise it may cause system damaged. If
Intel releases new version Celeron CPU to support 100MHz FSB, then you can set JP2
as 100MHz to increase system performance.
HARDWARE INSTALLATION
6
2.5 CPU Internal Frequency Ratio Setting
The switch 1 (SW1) is designated for adjusting the CPU internal frequency ratio. The frequency
ratio is defined as the table shown below. The internal frequency can be calculated by the follow-
ing formula:
CPU internal frequency = frequency ratio x system bus frequency *
* System bus frequency is set in “CPU Host Clock (CPU/PCI)” of “Chipset Features Setup” in
BIOS (Please refer to page 26).
NOTE: Because Intel has locked the Socket 370 Celeron CPU’s frequency ratio, setting
SW1 to adjust the frequency ratio is useless. Howerer, it may be effective if Intel unlocks
the frequency ratio in the future.
Transcend
D I M M 1 ( 6 4 / 7 2 b i t 1 6 8 p i n S D R A M M o d u l e )
D I M M 2 ( 6 4 / 7 2 b i t 1 6 8 p i n S D R A M M o d u l e )
D I M M 2 ( 6 4 / 7 2 b i t 1 6 8 p i n S D R A M M o d u l e )
COM1
Printer
P a r a l l e l P o r t
AGP
PCI Slot1 (PCI1) PCI Slot4 (PCI4) PCI Slot2 (PCI2) PCI Slot3 (PCI3)
ISA Slot1 (ISA1) ISA Slot2 (ISA2)
Intel443ZX AGP Set
IntelPIIX4ChipSet
CR2032 3VLithium Cell
P r i m a r y I D E C o n n e c t o r
S e c o n d I D E C o n n e c t o r
F l o p p y C o n n e c t o r
2 M b i t F l a s h ( B I O S )
Multi-I/O
& KeyboardController
F r e q u e n c y D I P S w i t c h
PANEL
P a n e l S w i t c h
IDE1
IDE2
CASE-FAN
CPU-FAN
FDC
PCI1 PCI2 PCI3 PCI4
ISA1 ISA2
IrDA
I n f r a r e d P o r t
WOL
Wake On LAN
AGP
COMA
Thermal Sensor
CMOS_CLR
HardwareMonitor
TS-ABX31 66/100MHz FSB
PS/2
T:Mouse B:Keyboard
USB
T:Port 1 B:Port 2
COM2
ATX Power Connector
POWER-FAN
PWR-CONN
KB MOUSE USB
COMB
Thermal S ensor
KB-AWK
JP2 1
1
6 6 M H z
1 0 0 M H z
1
66/100MHz
Configuration Jumper