MB-14XXUTI

MB SPECIFICATIONS

486 ISA bus MB NON CACHE W/AMI BIOS

Green mode selection via hardware or software

Supports UMC 486SX/DX CPU

Supports 5V CPU

Provides 237-pin PGA/ZIF Socket (optional)

Supports DRAM memory up to 64MB on board

Provides memory sockets as follow

30 pin SIMM socket X 4 pcs

72 pin SIMM socket X 1 Pcs

Supports PAGE-mode/80ns DRAM

Provides 5 pcs 98-pin slots and 1 pcs 62-pin slot (5 isa 16 bits , 1 8 bits slot)

Dimension : 17cm x 22cm

 

Jumpersettings

 

JP 1 : Function 1

 

external battery :

(+) pin 1

(-) pin 4

 

How to install an external battery on board.

Step 1 : Turn off power

Step 2 : Take off the cap of JP 1 on board

Step 3 : Insert the connector of the external battery to JP1

 

JP 2 : Function 2 CMOS Discharge

 

(1-2) Closed : To maintain set-up and extended setup data in CMOS for normal function.(default)

(3-4) Closed : To clear original CMOS setup memory, if inapproptriate operation incurring that caused system failure.

 

JP 2, JP 3 CPU Type Select

 

JP 2 Closed : 486SX

JP 3 Closed : 486DX

 

JP 4,5,6 CPU Clock Select

 

JP 7,8 CPU Package Select

JP 7 and JP 8 Closed - PQFP Selected.

JP 7 and JP 8 Open - PGA

JP 9 Suspend LED Connector

JP10 Hardware Suspend Switch

JP 11 Reset Switch

JP 13 Turbo Led Connector

JP 14 Keylock Select

JP 15 Speaker Connector

JP 16 Keylock Connector