MANUAIS DE MOTHERBOARDS BIOTEQ

MB-8500TUC


JUMPER SETTING

A jumper is several pins which may or may not be covered by a plastic jumper cap.
A jumper is used to select different system options.

A: JP5 CACHE RAM SIZE SELECT

Jumper
No:		 256KB 512KB
JP5 open closed

 

B: JP10 Flasch ROM type voltage select

1-2 closed: +12V type flash memory used
2-3 closed : +5V type flash memory used
Open: EPROM used, or 0V type FLASH ROM

C: JP11 CMOS function select

Open : To maintain set up and extended setup data in CMOS for normal functioning.
Closed : To clear CMOS setup memory. If there has been inappropriate operation incurring the system is failure.

Note : Please follow the procedures below to clear BIOS password if your password is lost of forgotten.

power off -->JP11 closed --> power on --> after memory count finished, power off --> JP11 open --> power on --> reset your desired password.

CPU INSTALLATION/JUMPER SETTING

A: JP6,JP9,JP15 CPU type select (for PCB V:1)

CPU type JP6 JP9 JP15 remark
INTEL
P54C/CQS/CT
cyrix 6x86tm
AMDK5tm		 1-2,4-5
closed		 2-3,4-5
7-8,9-10
closed		 open 3.4V
INTEL
P55C/CT		 2-3,5-6
closed		 1-2,3-4,
6-7,8-9
closed		 closed 3.4V/2.5V

B: JP6,JP9,JP15 CPU type select (for PCB V:2 and afterwards)

CPU type JP6 JP9 remark
INTEL
P54C/CQS/CT
cyrix 6x86
AMDK5
PR xxx AB
PR xxx AC
PR xxx AF		 1-2 closed
 closed single volt
VI/O = 3.45V/3.5V
Vcore = 3.45V3.5V
INTEL
P55C/CT
AMDK5
PR xxx AH
PR xxx AJ
PR xxx AK		 2-3 closed open dual volt
VI/O = 3.45V/3.5V

Vcore = 2.9V

C: JP14 CPU votage level select

*Intel CPU standart spec: 3.135V - 3.365V
*VR spec: 3.300V - 3.465V
*VRE spec: 3.450V - 3.600
*cyrix 6x86 tm spec: 3.150V - 3.600V
*AMDK5 tm spec: 3.300V - 3.600V

please consult CPU SPEC with your CPU dealer

D: JP4,JP7 CPU clock select

CPU
speed		 bus clock
& multiplier		 JP4
(1-2)		 JP4
(3-4)		 JP7
(1-2)		 JP7
(3-4)
75MHz 50MHz x105 closed closed open open
90MHz 60MHz x1.5 open closed open open
100MHz 66MHz x 1.5 closed open open open
120MHz 60MHz x 2 open closed closed open
133MHz 66MHz x 2 closed open closed open
150MHz 60MHz x 2.5 open closed closed closed
166MHz 66MHz x 2.5 closed open closed closed
180MHz 60MHz x 3 open closed open closed
200MHz 66MHz x 3 closed open open closed

(b) Cyrix 6x86 tm CPU

CPU
speed		 bus clock
& multiplier		 JP4
(1-2)		 JP4
(3-4)		 JP7
(1-2)		 JP7
(3-4)
P-120
100MHz		 50MHz x 2 closed closed note** open
P-133
110MHz		 55MHz x 2 open open note** open
P-150
120MHz		 60MHz x 2 open closed note** open
P-166
133MHz		 66MHz x 2 closed open note** open


(c) AMD-K5 tm CPU

CPU P-rating
& speed		 bus clock
& multiplier		 JP4
(1-2)		 JP4
(3-4)		 JP7
(1-2)		 JP7
(3-4)
PR-75
75MHz
PR-90
90MHz
PR-100
100MHz
PR-120
90MHz
PR-133
100MHz
P