5-56 FRU Removal and Replacement
5.5.22
Memory Board Removal and Replacement (Model 400s)
Refer to Figure 5-40 and follow these steps to remove a memory board:
1. Remove the top and left side cover. Then, remove the CPU board.
2. Identify (using the failing memory address) the specific memory board to re-
move. Refer to chapter 4.
3. Using a flat-tipped screwdriver, pry each end of the memory board up a little at
a time until it is clear of the card guide.
4. Remove the memory board.
5. If you are replacing the CPU board, remove the memory board guides by slid-
ing them toward the back. Then, lift their tabs out of the CPU board’s holes.
If you have replaced the CPU board and are moving the memory modules from the old
CPU board to a new one, place the memory modules in the same slots on the new CPU
board as they were on the old CPU board.
Memory modules have several restrictions regarding their installation:
• You may replace one module of a pair, but modules of the same size must be
installed in pairs.
• There can be no empty slots between modules or module pairs.
• The largest size pair must be in slots 0A and 0B.
• Each higher numbered slot pairs must have equal sized or next smaller sized
memory boards used in the system unit.
Follow these steps to replace a memory board:
1. If you are replacing the CPU board, install the memory board guides by placing
their tabs in the CPU board holes. Then, sliding them towards the front, locking
them in place.
2. Insert the memory board, with its connector side towards the back, into the
connector.
3. Firmly seat the memory board in its CPU board connector.
4. Ensure the board guides are straight and correctly holding the sides of the
memory boards.
Summary of Contents for Apollo 9000 400dl
Page 4: ...iv VCCI Class 1 ITE Equipment VCCI Class 2 ITE Equipment ...
Page 6: ...vi ...
Page 22: ......
Page 26: ...1 4 Product Overview Figure 1 1 HP Apollo Model 400t or Model 400dl Workstation ...
Page 40: ......
Page 42: ...2 2 System Controls Figure 2 1 Model 400t and 400dl System ...
Page 54: ...3 4 Theory of Operation Figure 3 1 Model 400t System Block Diagram ...
Page 55: ...Theory of Operation 3 5 Figure 3 2 Model 400dl System Block Diagram ...
Page 57: ...Theory of Operation 3 7 Figure 3 4 Model 400s DIO II System Unit Functional Block Diagram ...
Page 58: ...3 8 Theory of Operation Figure 3 5 Model 400s ISA System Unit Functional Block Diagram ...
Page 70: ...3 20 Theory of Operation Figure 3 6 Model 400s System Unit Power Distribution Diagram ...
Page 74: ...4 4 Fault Isolation Figure 4 1 Main Flowchart ...
Page 75: ...Fault Isolation 4 5 Figure 4 1 Main Flowchart Cont ...
Page 76: ...4 6 Fault Isolation Figure 4 2 Model 400t and 400dl System Power LED Not On ...
Page 77: ...Fault Isolation 4 7 Figure 4 3 Model 400s System Power LED Not On ...
Page 78: ...4 8 Fault Isolation Figure 4 4 Domain Keyboard Problems ...
Page 79: ...Fault Isolation 4 9 Figure 4 5 Problems with Display ...
Page 80: ...4 10 Fault Isolation Figure 4 6 Diskless Node Partnering Problems ...
Page 81: ...Fault Isolation 4 11 Figure 4 7 Problems with Winchester Disk ...
Page 82: ...4 12 Fault Isolation Figure 4 8 Problems While Booting ...
Page 83: ...Fault Isolation 4 13 Figure 4 9 Node Causes Network Problems ...
Page 86: ...4 16 Fault Isolation Figure 4 10 Diagnostic Relationships for Domain OS Compatible Mode ...
Page 99: ...Fault Isolation 4 29 Figure 4 13 HP UX Compatible Mode Main Troubleshooting Flowchart ...
Page 100: ...4 30 Fault Isolation Figure 4 14 HP UX Compatible Mode Boot Flowchart ...
Page 101: ...Fault Isolation 4 31 Figure 4 14 HP UX Compatible Mode Boot Flowchart Cont ...
Page 131: ...Fault Isolation 4 61 Figure 4 17 System Unit Cover Removal Model 400t and Model 400dl ...
Page 132: ...4 62 Fault Isolation Figure 4 18 Power Connections Model 400t and Model 400dl ...
Page 148: ......
Page 151: ...FRU Removal and Replacement 5 3 Figure 5 1 System Unit Cover Removal Model 400t and 400dl ...
Page 152: ...5 4 FRU Removal and Replacement Figure 5 2 System Components Model 400t and 400dl ...
Page 181: ...FRU Removal and Replacement 5 33 Figure 5 26 Model 400s Front Door Removal ...
Page 183: ...FRU Removal and Replacement 5 35 Figure 5 27 Model 400s Bezel Removal ...
Page 193: ...FRU Removal and Replacement 5 45 Figure 5 34 Model 400s ISA Backplane Removal ...
Page 195: ...FRU Removal and Replacement 5 47 Figure 5 35 Model 400s ISA Card Cage Removal ...
Page 205: ...FRU Removal and Replacement 5 57 Figure 5 40 Model 400s Memory Board Removal ...
Page 209: ...FRU Removal and Replacement 5 61 Figure 5 43 Model 400s ISA Center Wall Removal ...
Page 211: ...FRU Removal and Replacement 5 63 Figure 5 44 Model 400s Standard ISA Motherboard Removal ...
Page 213: ...FRU Removal and Replacement 5 65 Figure 5 45 Model 400s 3 Slot DIO II Card Cage Removal ...
Page 215: ...FRU Removal and Replacement 5 67 Figure 5 46 Model 400s DIO II Center Wall Removal ...
Page 217: ...FRU Removal and Replacement 5 69 Figure 5 47 Model 400s DIO II Motherboard Removal ...
Page 221: ...FRU Removal and Replacement 5 73 Figure 5 49 Model 400s LED Board Removal ...
Page 234: ......
Page 236: ...A 2 FRU Configurations Figure A 1 CPU Board Configurations ...
Page 240: ...A 6 FRU Configurations Figure A 5 Alternate 802 5 Network Controller AT Jumper Configuration ...
Page 282: ......