|
|
| 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. |
Cache Specifications
The PB430/440/440T uses the same cache chips as the PB410.
Cache chips received from Customer Service may be marked with a "256." These chips will still work as ordered, that is, 32kx8 or 8kx8; the marking does
not necessarily determine the cache amount Cache chips may be 25ns, 20ns, or 15ns while the tag SRAM can be either 20ns or 15ns.
Component Locations
The Cache and TAG RAM are either 28-pin for 32KB or 128KB of cache, or 32-pin for 512KB of cache.
| Part Numbers | |
| B257 | 32K Cache |
| B258 | 128K Cache |