22
MEMORY CONFIGURATION
3
3
The HOT-671 mainboard provides two 168-pin DIMM sockets that make it possible to
install from 8MB up to 256MB 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 two DIMM sockets are arranged in two banks of one socket each, Each bank
provides a 64/72-bit wide data path.
HOT-671 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-
671 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, 256MB
168-pin 3.3V SDRAM or EDO DIMM
x 1
DIMM 1
8MB, 16MB, 32MB, 64MB, 128MB, 256MB
168-pin 3.3V SDRAM or EDO DIMM
x 1
Table 3-1