American Megatrends Atlas III PCI User Manual page 24

Step 3 Install Memory,
Configure Cache Memory The motherboard supports 256 KB or 512 KB of L2 3V Pipeline
Burst SRAM secondary cache memory.
J9, J10, J11, and J12 are 3-pin bergs that specify the cache memory size. These
jumpers are next to the CPU socket. J1 is a 2-pin berg that also specifies the
cache memory size.
Cache J1 J9
Size
256 KB OPEN Short Pins
1-2
512 KB Shorted Short Pins
2-3
Either 256 KB or 512 KB of Pipeline Burst Mode Static RAM L2 secondary
cache memory is mounted on the motherboard. You cannot upgrade L2
secondary cache memory.
L2 Cache Size
256 KB
512 KB
18 Atlas PCI-III PCI Pentium ISA Motherboard User's Guide
Continued
J10 J11
Short Pins Short Pins
1-2 1-2
Short Pins Short Pins
2-3 2-3
Cache DIP Type
32 KB x 32
32 KB x 32
J12
Short Pins
1-2
Short Pins
2-3
Tag RAM Type
32 KB x 8
32 KB x 8