jetway 630dfr1a Benutzerhandbuch

566/128/66/1.5V
566 :

CPU internal frequency, where here is 566MHz

128 :

the size of L2 cache, where here is 128K

66 :

front side bus frequency, where here is 66MHz

1.5V :

the voltage for the CPU

2-3-2 Setting CPU Bus Clock & Memory Clock Jumper

Setting the Front Side Bus frequency and SDRAM frequency
The motherboard uses jumper JP7 for the front side bus frequency and SDRAM
frequency setting as shown from the table below, and JP4, JP5 are must open

JP7 JP4

JP5

CPU/SDRAM (MHz)

1-2 3-4 5-6 7-8

AUTO OFF OFF OFF OFF ON ON

66/66

OFF OFF OFF ON OFF OFF

66/100 OFF OFF OFF OFF OFF OFF

100/100 ON OFF OFF OFF OFF OFF

100/133 ON OFF ON OFF OFF OFF

133/100

ON ON OFF OFF OFF OFF

133/133 ON ON ON OFF OFF OFF

Example: Using a Pentium



III 866 CPU with front side bus frequency of 133MHz and

PC-133 SDRAM module, the setting of JP7 are 1-2 closed, 3-4 closed, 5-6
closed for CPU BUS CLOCK to be 133MHz and SDRAM CLOCK to be
133MHz.

For experience user looking for over clocking, please refer to sec 2-3-4

2-3-3 Install CPU

This motherboard provides a ZIF socket 370. The CPU that comes with the
motherboard should have a cooling FAN attached to prevent overheating. If this is
not the case, then purchase a correct cooling FAN before you turn on your system.

WARNING! Be sure that there is sufficient air circulation across the processor’s

heatsink and CPU cooling FAN is working correctly, otherwise it
may cause the processor and motherboard overheat and damage,
you may install an auxiliary cooling FAN, if necessary.

To install a CPU, first turn off your system and remove its cover. Locate the ZIF
socket and open it by first pulling the level sideways away from the socket then