- 21 -
MEMORY CONFIGURATION
The HOT-673 mainboard provides three 168-pin DIMM sockets that make it possible to
install from 8MB up to 128MB of SDRAM and EDO DRAM. The DIMM socket
support 8MB, 16MB, 32MB, 64MB and 128MB 3.3V single- or double-side SDRAM
and EDO DIMM.
The three DIMM sockets are arranged in three banks of one socket each, Each bank
provides a 64/72-bit wide data path.
HOT-673 provides optional data integrity features including EC (Error Checking) or
ECC (Error Checking and Correcting) in the memory array. EC mode provides single
and multiple bit error detection. In ECC mode, during reads from the DRAM, the HOT-
673 provides error checking and correction of the data.
To support ECC, you must use true (opposed to phantom parity generated by TTL chips)
72-bit parity-type DIMM for all modules.
Install memory in any or all of the banks in any combination as follows:
DIMM
Socket
Memory Modules
Mudule
Quantity
DIMM 0
8MB, 16MB, 32MB, 64MB, 128MB 168-pin
3.3V SDRAM or EDO DIMM
x 1
DIMM 1
8MB, 16MB, 32MB, 64MB, 128MB 168-pin
3.3V SDRAM or EDO DIMM
x 1
DIMM 3
8MB, 16MB, 32MB, 64MB, 128MB 168-pin
3.3V SDRAM or EDO DIMM
x 1
Table 3-1
33
33
