IBM 8840 Hardware Maintenance Manual - Page 172
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external (continued) devices, connecting 54 F fan, replacing 49 FCC Class A notice 158 features 3 filler panel hard disk drive bay 39 FRUs, defined vii H handling static-sensitive devices 25 hardware problems, determining 11 heat output 3 hot-swap and hot-plug devices drives 27, 39 fans 27, 49 power supplies 47 hot-swap drive, installing 38 hot-swap fan, replacing 49 hot-swap power supply, installing 47 hub 58 humidity 3 I IBM Director 9 information LED 5 installing hot-swap drive 38, 39 hot-swap fan 49 memory module 39 microprocessor 42 non-hot-plug adapter 32 options 23 VRM 44 integrated RAID controller 31 Integrated xSeries Adapter ports 56 intermittent problems 92 J jumpers 68 K keyboard connector 6 keyboard port 56 keyboard problems 92 L LEDs 5 diagnosing problems using 16 Ethernet activity 6 Ethernet-link status 6 LEDs (continued) front view 4 power supply 17 rear view 5 system board 69 light path diagnostics LEDs 18 panel 17 Light Path Diagnostics 16 M memory module installing 39 specifications 3 memory problems 93 messages diagnostic 14 Ethernet controller 21 SCSI error 14 microprocessor heat sink 46 installing 42 problems 93 specifications 3 VRM 44 monitor problems 93 mouse problems 92 mouse connector 6 N network connection problems 20 notes, important 156 notices electronic emission 158 FCC, Class A 158 used in this book 2 O online support viii operator information panel 4 option problems 95 options external cabling requirements 57 connecting 54 installing 23 P PCI bus A 30 bus B 30 bus C 30 PCI expansion slots 3 162 xSeries 346 Types 8840 and 1880: Hardware Maintenance Manual and Troubleshooting Guide
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