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PPD512A10-150000控制器
该字段允许为以下对象创建内存间隙（系统RAM中的空闲地址空间）：与选项卡一起使用。在传统内存中，此间隙为128 KB，从512 KB到640 KB或1 MB的扩展内存，从15 MB扩展到16 MB，这需要使用常规或扩展存储器。选择被禁用（默认）或常规，和扩展。安全菜单使用此菜单定义系统密码并设置其他安全选项。如果您设置密码，您必须再次输入才能验证。密码可用于限制对设置菜单的访问或防止未经授权启动装置。在设置主管密码之前，此字段处于非活动状态。如果主管和如果设置了用户密码并启用了此选项，则必须输入密码（或一）在引导序列期间。连续三次输入错误密码导致系统关闭。如果仅设置了管理员密码，则使用此选如果启用，则必须在引导序列期间输入管理员密码。如果没有设置密码并启用此选项时，不会发生任何情况。选择是禁用（默认）和启用。固定磁盘引导扇区：此字段允许保护硬盘的引导扇区以防止病毒。选项为正常（未保护，默认）和写保护（保护）。
软盘访问在设置了管理员密码之前，此字段处于非活动状态。当主管选中（默认），只有管理员可以访问软盘驱动器。当用户选中后，任何人都可以访问软盘驱动器。
用户模式选项为正常（默认）和受限。选择限制时，用户除了限制之外，无法访问电源或启动菜单的任何字段上表中列出了最后一页的安全菜单图。
病毒检查提醒此字段用于配置病毒检查提醒。
选项被禁用（默认）、每日、每周和每月。如果启用，提醒将显示在每次开机，直到回答“是”。然后，它将不会重新出现，直到下一次是增量。
系统备份提醒此字段用于配置备份系统的提醒。选择是禁用（默认）、每日、每周和每月。如果启用，则提醒将每次开机时显示，直到回答“是”。然后，它将不会再次出现，直到开始下一次时间增量。此字段用于配置或禁用电源管理功能。选择是：
1.禁用（默认）-无电源管理。
2.自定义–用户可以更改待机超时和暂停超时字段。
3.最大节能–待机超时设置为1分钟并暂停超时设置为5分钟。这些设置是只读的，并保留最大系统功率。
4.最大性能–待机超时设置为16分钟并暂停超时设置为60分钟。这些设置是只读的。他们允许最大的系统性能，同时仍具有一些电源管理。待机超时这是进入待机模式前系统需要处于待机模式的时间待机模式（部分电源关闭）。待机模式关闭各种系统设备，包括屏幕，直到您再次开始使用计算机。这个领域是
仅当节能字段设置为自定义时，用户才可配置。只读上面给出了其他节能设置的值。可编辑时，选项关闭（默认）、1分钟、2分钟、4分钟、6分钟、8分钟、12分钟、，和16分钟。
This field allows creation of a memory gap (free address space in the system RAM) for
use with an option card. This gap is 128 KB in the conventional memory from 512 KB to
640 KB or 1 MB in extended memory from 15 MB to 16 MB and this requires the use of
conventional or extended memory. The choices are Disabled (default) or Conventional,
and Extended. Security Menu
Use this menu to define system passwords and set other security options. If you set a
password, you must enter it a second time to verify it. Passwords can be used to limit access to the setup menus or prevent unauthorized booting of the unit. This field is inactive until a supervisor password has been set. If the supervisor and
user passwords are set and this option is enabled, you must enter a password (either
one) during the boot sequence. Entering an incorrect password three times in a row
causes the system to shut down. If only the supervisor password is set and this option
is enabled, you must enter the supervisor password during the boot sequence. If no
passwords are set and this option is enabled, nothing happens. The choices are
Disabled (default) and Enabled.
Fixed disk boot sector This field allows protection of the boot sector of the hard disk to protect against
viruses. The options are Normal (unprotected, default) and Write Protect (protected).
Diskette access This field is inactive until a supervisor password has been set. When Supervisor is
selected (default), only the supervisor can access the floppy drive. When User is
selected, anyone can access the floppy drive.
User Mode The choices are Normal (default) and Restricted. When Restricted is chosen, the user
cannot access any fields of the Power or Boot menus in addition to the restrictions
listed in the table above the Security menu diagram on the last page.
Virus check reminder This field is used to configure the virus check reminder. The choices are Disabled
(default), Daily, Weekly, and Monthly. If enabled, the reminder will be displayed at
every boot until answered with a Yes. Then it will not reappear until the start of the
next time increment.
System backup reminder This field is used to configure a reminder to backup the system. The choices are
Disabled (default), Daily, Weekly, and Monthly. If enabled, the reminder will be
displayed at every boot until answered with a Yes. Then it will not reappear until the
start of the next time increment. This field is used to configure or disable power management features. The choices
are:
1. Disabled (default) – no power management.
2. Customized – user can change Standby Timeout and Suspend Timeout fields.
3. Maximum Power Savings – Standby Timeout set to 1 Minute and Suspend
Timeout set to 5 Minutes. These settings are read-only and conserve the greatest
amount of system power.
4. Maximum Performance – Standby Timeout set to 16 Minutes and Suspend
Timeout set to 60 Minutes. These settings are read-only. They allow the greatest
system performance while still having some power management.
Standby Timeout This is the amount of time the system needs to be in Idle Mode before entering
Standby Mode (partial power shutdown). Standby Mode turns off various system
devices, including the screen, until you start using the computer again. This field is
user-configurable only when the Power Savings field is set to Customized. Read-only
values for other Power Savings settings are given above. When editable, the choices
are Off (default), 1 Minute, 2 Minutes, 4 Minutes, 6 Minutes, 8 Minutes, 12 Minutes,
and 16 Minutes.
