IBM 315, Hardware Maintenance Manual Supplement

Page: 60 / 151

6. Leave the upgrade diskette in the diskette drive and
power-on the computer.
7. Continue with the original upgrade.
Hard Disk Drive Boot Error
A hard disk drive boot error (error codes 1962 and
I999030X) can be caused by the following:
Cause Actions
The start-up drive is not in
the boot sequence in
configuration. Check the configuration and
ensure the start-up drive is
in the boot sequence.
No operating system
installed on the boot drive. Install an operating system
on the boot drive.
The boot sector on the
start-up drive is corrupted. The drive must be
formatted, do the following:
1. Attempt to access and
recover (back-up) the
failing hard disk drive.
2. Using the operating
systems programs,
format the hard disk
drive.
3. Go to “Preparing the
Hard Disk Drive for
Use” on page 61.
The drive is defective. Replace the hard disk drive.
Memory Configurations
The following DIMM configurations are supported.
Note
Standard memory-module configurations are subject to
change.
SCSI IDs:
If you install additional SCSI devices, you
must set a unique identification (ID) for each SCSI device
that you connect to the server. This enables the UltraSCSI
adapter to identify the devices and ensure that different
devices do not attempt to transfer data at the same time.
The UltraSCSI adapter in the server supports SCSI IDs 0
to 15. ID 7 is reserved for the adapter. The scanning
sequence for (preinstalled) SCSI devices proceeds from
the lowest SCSI ID to the highest SCSI ID, starting with 0.
If the server comes with a preinstalled hard disk drive, this
is the startup drive, and it already has a SCSI ID of 0.
Configuration Speed Type Size (MB)
Standard 60 ns EDO
ECC 32
Optional 60 ns EDO
ECC 32, 64, 128
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PC Server HMM