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Isolating Failing DIMMs
E-5
4.
Use the following table to determine the proper set. Bits<27,28,29,30,31,32>
are from the failing address.
Configuration Type Bits <7:4> from DPR
Array
Size
4 & 5
9
D & F
256MB
Lower Set
Upper Set
Bit <27> == 0 – Lower Set, 1– Upper Set
512MB
Lower Set
Upper Set
Bit <28> == 0 – Lower Set, 1– Upper Set
1GB
Lower Set
Upper Set
Bit <29> == 0 – Lower Set, 1– Upper Set
2GB
Lower Set
Upper Set
Bit <30> == 0 – Lower Set, 1– Upper Set
4GB
Lower Set
Upper Set
Bit <31> == 0 – Lower Set, 1– Upper Set
8GB
Lower Set
Upper Set
Bit <32> == 0 – Lower Set, 1– Upper Set
5.
Now that you have the real array, the failing Data/Check bits, and the
correct set, use Table E–4 to find the failing DIMM or DIMMs.
The table shows data bits 0–255 and check bits 0–31. These data bits indicate a
single-bit error. An SROM compare error would yield address and data bits
from 0–63. When you convert the address to be in the correct range, the failing
data would be somewhere between 0 and 255.
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Содержание AlphaServer ES40
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Страница 170: ...5 8 Compaq AlphaServer ES40 Service Guide Figure 5 4 FRU List Designator ...
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Страница 184: ...5 22 Compaq AlphaServer ES40 Service Guide Figure 5 7 Display Error Frames Screen ...
Страница 193: ...Error Logs 5 31 Figure 5 14 Deleting an Old Error Frame ...
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Страница 292: ...8 12 Compaq AlphaServer ES40 Service Guide Figure 8 4 Enclosure Panel Removal Pedestal 1 2 PK0234 ...
Страница 298: ...8 18 Compaq AlphaServer ES40 Service Guide Figure 8 7 Covers on the System Chassis Tower PK0216 5 4 3 1 2 2 2 1 ...
Страница 299: ...FRU Removal and Replacement 8 19 Figure 8 8 Covers on the System Chassis Pedestal Rack PK0215 1 4 5 3 2 1 2 ...
Страница 300: ...8 20 Compaq AlphaServer ES40 Service Guide 8 5 Power Supply Figure 8 9 Removing a Power Supply 5 4 3 2 PK0232a 1 ...
Страница 302: ...8 22 Compaq AlphaServer ES40 Service Guide 8 6 Fans Figure 8 10 Replacing Fans Unlock Lock 5 6 1 2 3 4 PK0208 ...
Страница 304: ...8 24 Compaq AlphaServer ES40 Service Guide 8 7 Hard Disk Drives Figure 8 11 Removing a Hard Drive PK0938a 1 2 ...
Страница 310: ...8 30 Compaq AlphaServer ES40 Service Guide Figure 8 14 Aligning DIMM in MMB PK0953a ...
Страница 314: ...8 34 Compaq AlphaServer ES40 Service Guide 8 11 OCP Assembly Figure 8 16 Removing the OCP Assembly 1 2 PK0282 ...
Страница 318: ...8 38 Compaq AlphaServer ES40 Service Guide 8 13 Floppy Drive Figure 8 18 Removing the Floppy Drive 1 2 3 4 4 5 PK0281 ...
Страница 324: ...8 44 Compaq AlphaServer ES40 Service Guide Figure 8 21 Removing the PCI Backplane PK0280 3 1 2 2 4 1 ...
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