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Figure 1-9
NPE-300
2
3
4
5
6
Midplane connectors
Keying post
DIMM 3 (U44)
Bank 1 (user configurable)
DIMM 2 (U45)
Captive installation screw
Handle
System controllers
Table 1-10
lists the NPE-300 memory specifications, and
configurations and their product numbers.
Table 1-10
NPE-300 Memory Specifications
SDRAM
32 to 256 MB
Boot ROM
512 KB
Primary cache 16 KB
(instruction),
16 KB (data)
1
7
8
9
10
RM7000 microprocessor
Temperature sensor (U42)
Keying post
Temperature sensor
Boot ROM (U1)
DIMM 0 (U16)
Bank 0 (fixed size)
U15 never populated
Table 1-11
2
1 configurable
32-, 64-, or 128-MB DIMMs
bank with 2
(based on maximum SDRAM
SDRAM slots
required)
4
1
OTP
program
—
RM7000 processor, internal cache U49
11
12
13
14
15
16
lists factory-installed SDRAM
ROM for the ROM monitor
Bank 1:
U45 and
3
U44
Socket
U1
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Troubleshooting
