Caution | Only authorized service personnel should upgrade the system. Anyone who wants to upgrade the system themselves 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. |
Standard on Motherboard: 8MB
Maximum on Motherboard: 128MB
Uses 4/8/16/32 MB 72-pin SIMMs, 60 or 70ns EDO or Fast Paged RAM
Supports only non-parity DRAM.
Specifications
EDO Memory varies on PB680 systems based on the CPU
type. The following table shows what EDO memory speed is required:
Pentium CPU | 70ns | 60ns |
66MHz | X | |
75MHz | X | |
90MHz | X | |
100MHz | X | |
120MHz | X | |
133MHz | X | |
150MHz | X | |
166MHz | X | |
200MHz | X |
Notes
Upgrade Table
SIMM Type (Bank 0) | SIMM Type (Bank 1) | Total System Memory |
1M X 32 (4 MB) | Empty | 8MB |
1M X 32 (4 MB) | 1M X 32 (4 MB) | 16MB |
1M X 32 (4 MB) | 2M X 32 (8 MB) | 24MB |
1M X 32 (4 MB) | 4M X 32 (16 MB) | 40MB |
1M X 32 (4 MB) | 8M X 32 (32 MB) | 72MB |
2M X 32 (8 MB) | Empty | 16MB |
2M X 32 (8 MB) | 1M X 32 (4 MB) | 24MB |
2M X 32 (8 MB) | 2M X 32 (8 MB) | 32MB |
2M X 32 (8 MB) | 4M X 32 (16 MB) | 48MB |
2M X 32 (8 MB) | 8M X 32 (32 MB) | 72MB |
4M X 32 (16 MB) | Empty | 32MB |
4M X 32 (16 MB) | 1M X 32 (4 MB) | 40MB |
4M X 32 (16 MB) | 2M X 32 (8 MB) | 48MB |
4M X 32 (16 MB) | 4M X 32 (16 MB) | 64MB |
4M X 32 (16 MB) | 8M X 32 (32 MB) | 96MB |
8M X 32 (32 MB) | Empty | 64MB |
8M X 32 (32 MB) | 1M X 32 (4 MB) | 72MB |
8M X 32 (32 MB) | 2M X 32 (8 MB) | 80MB |
8M X 32 (32 MB) | 4M X 32 (16 MB) | 96MB |
8M X 32 (32 MB) | 8M X 32 (32 MB) | 128MB |