Specifications

PC/II+p Board Technical Reference Manual 51

7.14 Memory

The PC/II+p board is shipped with soldered 66 MHz (10 ns) typical, 3.3v Synchronous DRAM memory,

soldered to the bottom of the board.

The amount of soldered on a given board is automatically detected by the BIOS; there are no memory

jumpers to configure.

DMA can directly access memory anywhere in the 32-bit physical address space. In addition, L2 caching can

access memory up to a theoretical limit of 1 GB of main memory, which therefore imposes an absolute

system memory limit.

There are 4 population sites on the board for the two banks of soldered-down SDRAM. Either 4Mx16 or

8Mx16 parts are installed, providing amounts of 32 MB or 64 MB. The valid combinations of populated &

memory by total memory given in the following table.

Table 21 Total System Memory Options

SOLDERED SDRAM MEMORY TOTAL MEMORY

(MB) DEVICES x ORG

32 MB

32 4 x 4Mx16

64 MB

64 4 x 8Mx16

7.15 Mouse

See Section 7.13, Keyboard & Mouse Interface.