IBM 8681 Hardware Maintenance Manual - Page 225
DIMM Minimum requirement = 1 DIMM of, Processor Controller Board
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Note Minimum full-boot requirements are: I/O Board I/O Function Card Midplane Power Control Card Power Supply (1) Processor Daughter Board (1) Processor Controller Board Processor (1) LED card Memory Card (1) DIMM (Minimum requirement = 1 DIMM of 128 MB or larger) SCSI backplane (if boot hardfile is internal) Boot hardfile (internal or external) PCI SCSI adapter (if external boot hardfile is driven by PCI adapter) Video Monitor (Display) Keyboard Mouse 17. Reduce the system to the minimum full-boot configuration (see note). 18. Retest the system. Use jumper J11 on the I/O board to force power on since the front panel is disconnected. 19. If the system does not boot to the operating system, go to 21 on page 219. If the system boots to the operating system, shutdown the server and add FRUs back into the configuration one at a time until the system will no longer boot to the operating system. This narrows the possibilities of the failing FRU to the last FRU added, or the board it plugs into. Netfinity 8500R - Type 8681 217
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