IBM 8681 Hardware Maintenance Manual - Page 148
Processor-controller board component locations, Processor-core-frequency-selection jumper block
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Page 148 highlights
Processor-controller board component locations A simplified layout of the processor controller board is shown in the following illustration. 1 Midplane connector 2 Processor-cage release latches (four) 3 Processor-daughterboard slot B connector (secondary slot) 4 Cache coherency filter card connectors 5 Processor-core-frequency-selection jumper block 6 LED card connector 7 Processor-daughterboard slot A connector (primary slot) 140 Netfinity Server HMM
![](/manual_guide/products/ibm-8500r-hardware-maintenance-manual-603c304/148.png)
Processor-controller board component
locations
A simplified layout of the processor controller board is
shown in the following illustration.
±1²
Midplane connector
±2²
Processor-cage release latches (four)
±3²
Processor-daughterboard slot B connector
(secondary slot)
±4²
Cache coherency filter card connectors
±5²
Processor-core-frequency-selection jumper block
±6²
LED card connector
±7²
Processor-daughterboard slot A connector
(primary slot)
140
Netfinity Server HMM