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Determining the Faulty SIMM Pair

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Table 10 Troubleshooting Dealing with HPMC (Uncorrectable Error) Determining the Faulty SIMM Pair The address given by the System Responder Address is contiguous, even though empty slots are permitted. Memory boards are installed in pairs of the same memory capacity. The operating system starts mapping memory at Pair 3, if it exists. In other words, it maps starting with the highest numbered pair through to the Pair 0. To determine the faulty pair of SIMMs, perform the following steps. 1 Using Table 10, determine the HEX value address range for each SIMM pair in the system. Memory Address Ranges Pair Memory (3 thru 0) Size (MB) Address Range 0-8 8-16 16-24 24-32 32-40 40-48 48-56 56-64 64-72 72-80 80-88 88-96 96-104 0x00000000 - 0x007FFFFF 0x00800000 - 0x00FFFFFF 0x01000000 - 0x017FFFFF 0x01800000 - 0x01FFFFFF 0x02000000 - 0x027FFFFF 0x02800000 - 0x02FFFFFF 0x03000000 - 0x037FFFFF 0x38000000 - 0x03FFFFFF 0x04000000 - 0x047FFFFF 0,048000000 - 0x04FFFFF 0x05000000 - 0x057FFFFF 0x05800000 - 0x05FFFFFF 0x06000000 - 0x067FFFFF 85

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Troubleshooting
Dealing with HPMC (Uncorrectable Error)
85
Determining the Faulty SIMM Pair
The address given by the System Responder Address
is contiguous, even though empty slots are permitted.
Memory boards are installed in pairs of the same
memory capacity. The operating system starts map-
ping memory at Pair 3, if it exists. In other words, it
maps starting with the highest numbered pair through
to the Pair 0. To determine the faulty pair of SIMMs,
perform the following steps.
1
Using Table 10, determine the HEX value address range
for each SIMM pair in the system.
Table 10
Memory Address Ranges
Pair
(3 thru 0)
Memory
Size (MB)
Address Range
_________
0-8
0x00000000 - 0x007FFFFF
_________
8-16
0x00800000 - 0x00FFFFFF
_________
16-24
0x01000000 - 0x017FFFFF
_________
24-32
0x01800000 - 0x01FFFFFF
_________
32-40
0x02000000 - 0x027FFFFF
_________
40-48
0x02800000 - 0x02FFFFFF
_________
48-56
0x03000000 - 0x037FFFFF
_________
56-64
0x38000000 - 0x03FFFFFF
_________
64-72
0x04000000 - 0x047FFFFF
_________
72-80
0,048000000 - 0x04FFFFF
_________
80-88
0x05000000 - 0x057FFFFF
_________
88-96
0x05800000 - 0x05FFFFFF
_________
96-104
0x06000000 - 0x067FFFFF