Digital Equipment PRIORIS MTE, Service Maintenance Manual, Page: 23 / 73

Digital PRIORIS MTE Server Server Utilities & configuration
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Additional Option Information
SCU options are explained in further detail in the next section.
System Base Memory
System base memory is automatically detected by the POST. It selects 640 KB unless an expansion board has
been installed that uses the address space between 512 KB and 640 KB.
System Board Extended Memory
This function indicates the amount of extended memory (memory addressable beyond 1 MB) resident on the
system board and an optional memory module (if installed). The amount of extended memory is automatically
detected and cannot be modified using SCU.
Extended memory installed on EISA or ISA boards is not included in the quantity of extended memory
indicated.
User Definable Hard Disk Drive
System BIOS contains a table of drive types for hard disk drives. Of these, the number of sectors, cylinders,
heads, and so on can be defined for types 2 and 3 or types 48 and 49. Choose types 48 and 49, unless the Local
Area Network (LAN) software does not recognize them. Otherwise, use types 2 and 3. Note that this option
does not apply to SCSI devices.
Hard Drive 1/Hard Drive 2
This option must be configured to determine drive-specific parameters. Choose the drive type for the drive
from types 1 and 47. If hard drive 1 is not installed, then select "Disabled".
User-definable types 2, 3, 48, and 49 require to enter specific parameters (cylinders, heads, precompensation,
landing zone, and sectors). Either types 2 and 3 or types 48 and 49 can be selected as user-definable. IDE
drives are usually selected as drive type 1. Because certain operating systems do not recognize BIOS drive
type parameters above type 47, the parameters for drives types 48 and 49 should be aliased to types 2 and 3
using this option.
CPU Speed
This option determines the speed used by the computer each time you turn it on or reboot it. Fast is the normal
speed and causes the CPU to run at its rated speed. Slow (equivalent to 8 MHz) is used to reduce the effective
CPU speed to be compatible with some speed-dependent application programs. If an application program does
not run correctly at full speed, try changing the CPU speed to slow.