PB 386 16/20 Supreme Upgrade Information

Battery
BIOS
Cache
CPU
RAM
Video
WARNING: Only authorized service personnel should upgrade the system. Anyone who wants to upgrade the system herself/himself should know about the dangers of ESD (Electro-Static Discharge) and the necessary precautions. Unknowingly zapping the components of the computer will void the warranty.
Specifications 1. BASE MEMORY = 640 (always) 2. SHADOW BIOS and SHADOW VIDEO: take 128Kb off Extended Memory for each enabled shadow. 3. No jumper setting required. 3. Recommended SIMM speed is 70ns. Upgrade Table
TOTAL SIMMs SETUP SETTINGS EXT.
MEM Bank 0 Bank 1 Bank 2 Bank 3 Bank SIMM TYPE MEM
2/3 Bank 1/2 Bank 3/4
1MB (4)256K Single Disab 256Kb 0 Kb
2MB (4)256K (4)256K Interlv Disab 256Kb 1024
4MB (4)256K (4)256K (4)256K (4)256K Interlv Enabl 256Kb 256Kb 3072
4MB (4)1MB Single Disab 1 MB 3072
8MB (4)1MB (4) 1MB Interlv Disab 1 MB 7168
10MB (4)1MB (4) 1MB (4)256K (4)256K Interlv Enabl 1 MB 256Kb 9216
16MB (4)1MB (4) 1MB (4) 1MB (4) 1MB Interlv Enabl 1 MB 1 MB 15360
PB 386 16/20 Supreme CPU Upgrade _0 _940113 _GA3 _KBG _1620SUPG _TAG
WARNING: Only authorized service personnel should upgrade the system. Anyone who wants to upgrade the system herself/himself should know about the dangers of ESD (Electro-Static Discharge) and the necessary precautions. Unknowingly zapping the components of the computer will void the warranty.
MATH CO-PROCESSOR This system has two variations of motherboards: A. The old variation accepts only the 80287-10 Math Co-processor at location U12. B. The new variation will accept the 80287-10, 80387DX-16 or 80387DX-20 in the appropriate Co-processor socket. JMP2 must jump 1-2 for 80387 or 5-6 for 80287.
PB 386 16/20 Supreme Battery Upgrade _0 _940113 _GA3 _KBG _1620SUPG _TAG
WARNING: Only authorized service personnel should upgrade the system. Anyone who wants to upgrade the system herself/himself should know about the dangers of ESD (Electro-Static Discharge) and the necessary precautions. Unknowingly zapping the components of the computer will void the warranty.
Removable, located at J2


01041422