Super-Voyager LC Motherboard User's Guide
Appendix A
Upgrading to 256 KB Cache
Parts
To upgrade to 256 KB of cache memory, you will need 28-pin 32
KB x 8 static RAM chips with an access time of 15 or 20 ns:
•
If the motherboard has a 33 or 50 MHz processor, use 15
ns SRAM.
•
if the motherboard has a 16, 20, or 25 MHz processor, use
20 ns SRAM.
Procedure
Step
Action
1
Move all switches on SW1 to ON.
2
Remove all old SRAM chips from U34, U35, U36, U37, U38, U39,
U40, and U41.
3
Place the new 28-pin 32 KB x 8 static RAM chips in U34, U35,
U36, U37, U38, U39, U40, and U41. Make sure that the pins are
straight and that all pins are inserted in the receptacles.
4
Turn the system on. The Boot Screen should display 256 KB of
cache memory. If 256 KB does not display, check for bent pins on
the new SRAM chips.
SRAM Locations
The figures on the following page shows the location of SRAM
chips and SW1, discussed above.
Summary of Contents for Baby Voyager 80486
Page 1: ...American Megatrends Inc 80486 Voyager LC Motherboard User s Guide MAN 661 4 27 01 ...
Page 14: ...Chapter 2 Installation 8 ...
Page 15: ...Super Voyager LC Motherboard User s Guide Series 61 Motherboard Layout ...
Page 19: ...Super Voyager LC Motherboard User s Guide ...
Page 74: ...Appendix A Upgrading Cache Memory 68 Cache Diagram ...
