Samsung KMM5368103CK-6
PC-Compatible Systems

These systems require or support 72-pin FPM DRAM with parity:

✅ Intel 486 and Early Pentium Systems

• Intel 486DX2/DX4 desktop motherboards (with parity memory slots)

• Pentium 60/66/75/90/100/120/133 MHz motherboards using SIMM sockets

• IBM PS/2 Models:

  • IBM PS/2 Model 56/57

  • IBM PS/2 Model 76/77

• Compaq Deskpro XL/400/500 series

• HP Vectra 486 and early Pentium systems

• DEC Venturis and Celebris Pentium series

• AST Advantage! and Premmia series

• Tyan, Asus, and Intel Socket 4/5/7 motherboards with 72-pin SIMM sockets

📝 Note: These systems often required memory installed in pairs (to achieve 64-bit width + parity).

🍎 Apple Macintosh Systems72-pin parity SIMMs✅ Macintosh Systems Known to Support Parity 72-pin SIMMs

• Macintosh Quadra 800

• Macintosh Quadra 840AV

• Macintosh Centris 650

• Macintosh Workgroup Server 80/95/95AV

• Macintosh IIci and IIfx (with specific parity SIMMs)

• Power Macintosh 6100/7100/8100 (note: some may accept parity SIMMs but do not use parity)

⚠️ Many Macs do not use parity, and while they may work with parity modules, the parity function will be ignored. Some are picky about chip layout (number of chips, side configuration), so compatibility depends on exact configuration.

General Information

• Manufacturer: Samsung (formerly Samsung Semiconductor)

• Part Number: KMM5368103CK-6

• Memory Type: FPM DRAM (Fast Page Mode Dynamic RAM)

• Module Type: 72-pin SIMM (Single Inline Memory Module)

• Capacity: 32MB

• Organization: 8MB × 72-bit (Parity/ECC-enabled)

• Data Bus Width: 72-bit (64-bit data + 8-bit parity/ECC)

• Parity: Yes (9 chips per side = 18 total → 2 banks of 9 chips)

• Module Height: Standard height (approx. 1.0 to 1.25 inches)

• Form Factor: SIMM (commonly used in 486 and early Pentium systems)

Technical Specifications

• Memory Chip Type: DRAM (Fast Page Mode)

• Speed: 60ns (nanoseconds) access time (indicated by the “-6” in the part number)

• Voltage: 5V

• Pin Count: 72-pin SIMM

• Refresh: RAS-only refresh or CAS-before-RAS refresh (standard for FPM DRAM)

Historical Context

• Era: Early to mid-1990s

• Used In: 80486, early Pentium, and some workstations/servers requiring ECC or parity memory

• Bus Compatibility: 32-bit systems (installed in matched pairs for 64-bit access on Pentiums)

Marking Breakdown

• KMM = Samsung Memory Module

• 5368103 = Internal part designation

• C = Likely refers to parity version

• K = Revision or packaging code

• -6 = 60ns speed grade