MB-14XXAEA-P

Jumper settings

JP 4 CPU Clock Select ( Enigeer Test Pin)

ALWAYS IN 2-3 !!!!!!

JP 5 CPU Clock Select

(1-2) Closed For 486DX-50 Mhz Only

(2-3) Closed For other CPU Clock Type

JP 6 Tag RAM Size Select

(1-2) Closed For 7 Bit Tag RAM

(2-3) Closed For 8 Bit Tag RAM

JP 10 CPU Clock Select.

Closed For 486 DX-50 Mhz Only

Open For other CPU Clock Type

JP11 Chip Type Select

Open For battery & RTC 146818

Closed For Dollas 1287

JP12,19 Cache RAM Size Settings

JP 12 : All open & JP 19 (1-2) : 64K

JP 12 : (1-2),(3-4) Closed & JP 19 (2-3) Closed : 128K

JP 12 : All Closed & JP 19 (1-2) Closed : 256K Cache

JP 13,20 CPU Type Select

JP 14 Monitor Type Select

(1-2) Closed : MONO

(2-3) Closed : COLOR

JP 16 CMOS Discharge

(1-2) To Clear CMOS

(2-3) To maintain Setup (Default)

!!NOTE!! After clear CMOS setup memory, please adjust pin (2-3) of JP16 to be closed

again. Otherwise the system won’t be booted up.