System information

CPU
VSBC-6 Reference Manual Reference – 25
CPU
CPU C
LOCK
S
PEED
M
ULTIPLIER
Jumper block V11 is used to multiply the on-board 66 MHz bus clock to match the internal clock
speed of the CPU chip. For example, the 200 MHz CPU shown shown below uses a multiplier of
3.0
See page 21 for jumper configuration details.
CPU C
ORE
V
OLTAGE
S
ELECTION
Jumper block V12 is used to program a variable output voltage regulator to match the V
CORE
power supply requirements of the CPU chip. The V
CORE
voltage can be determined by examining
the information marked on the lid of the CPU chip.
Warning! To prevent damage to the CPU chip or the VSBC-6 circuity, you must always
double check the V
CORE
voltage indicated on the cover of the CPU chip and make
sure jumper V12 is set properly.
A
PPROVED
CPU L
IST
The following list of Socket 7, 3.3V I/O voltage, 66MHz external bus compliant CPU chips are
approved for use in the VSBC-6. Care must be taken to correctly configure jumper V11 to match
the CPU Clock Speed Multiplier as shown in the table below. Jumper V12 must be configured to
match the CPU Core Voltage as marked on the cover of the CPU chip. See pages 21 and 22 for
jumper configuration details.
Table 5: CPU Configuration Table
Mfg. Description
CPU
Speed
CPU Clock
Speed
Multiplier
Intel Pentium MMX 233 MHz 3.5
Intel Tillamook 266 MHz 4.0
AMD K6-2 266 MHz 4.0
AMD K6-2E 266 MHz 4.0
AMD K6-2 300 MHz 4.5
AMD K6-2 333 MHz 5.0
AMD K6-2 366 MHz 5.5
AMD K6-2 400 MHz 6.0
Warning! Incorrect configuration can result in damage to the CPU chip and the VSBC-6
circuitry. Consult your CPU documentation to correctly identify clock speed, core
voltage and I/O voltage prior to installation. Failure to configure and operate your
CPU in accordance within the specified parameters will void your warranty.