Acer Extensa 610 Service Guide

							BIOS Setup Information3-73.4.3System Boot Drive Control
This parameter determines which drive the notebook boots from when you turn it on.  The
following table lists the three possible settings.
Table 3-4System Boot Drive Control SettingsSettingDescriptionDrive A Then C
(default)Notebook boots from floppy drive A.  If there is no system disk in drive A, the
notebook boots from hard disk C.  If the hard disk is a non-system disk, an error
message appears.Drive C Then ANotebook boots from hard disk C.  If hard disk C is not a system disk, the notebook
boots from floppy drive A.  If no diskette is present or if the diskette in floppy drive
A is a non-system disk, an error message appears.Drive CNotebook boots from hard disk C.  If hard disk C is not a system disk, an error
message appears.Drive ANotebook boots from floppy drive A.  If no diskette is present or if the diskette in
floppy drive A is a non-system disk, an error message appears.An installed PCMCIA bootable card overrides the System Boot Drive setting.
The notebook supports SRAM card boot.
3.4.4CD-ROM Bootable
When enabled the notebook checks the CD-ROM drive first and boots from there, if possible,
before checking the System Boot Drive control setting.
There are two image types/formats for CD-ROMs - floppy drive and hard disk.  See Table 3-5 for a
description.
Table 3-5CD-ROM Image DescriptionsImage TypeUpon Boot-up…Floppy DriveCD-ROM drive becomes drive A and the floppy drive becomes drive B.  The hard
disk drive remains drive C.Hard DiskCD-ROM drive becomes drive C and the hard disk drive becomes drive D.  The
floppy drive remains drive A. 
						

							3-8Service Guide3.4.5Serial Port 1 Base Address
The serial port can accommodate a modem, serial mouse, serial printer, or other serial devices.
The default setting for the serial port base address is 3F8h(IRQ 4)1
.
Other options include:
· 2F8h(IRQ 3)
· 3E8h(IRQ 4)
· 2E8h(IRQ 3)
· Disabled
Make sure the serial port base address does not conflict with the address used by a PCMCIA card,
if one is installed.
3.4.6Parallel Port Base Address
The parallel port can accommodate a parallel printer or other parallel devices.  The default setting
for the parallel port base address is [378h(IRQ 7)]1
.  The other options for this parameter are:
· 278h(IRQ 5)
· 3BCh(IRQ 7)
· Disabled
3.4.7Parallel Port Operation Mode
The parallel port supports four operation modes:
· Standard and Bidirectional
· Extended Capabilities Port(ECP)
· Standard and Unidirectional
· Enhanced Parallel Port(EPP)
ECP or Extended Capabilities Port supports a 16-byte FIFO (first in, first out) which can be
accessed by host DMA cycles and PIO cycles.  ECP boosts  I/O bandwidth to meet the demands
of high-performance peripherals.  EPP or Enhanced Parallel Port is a parallel port interface that
greatly improves performance for bi-directional block-mode data transfers. EPP provides greater
throughput by supporting faster transfer times and a mechanism that allows the host to address
peripheral device registers directly.
                                                  1
The parameter value is the base address expressed in hexadecimal. 
						

							BIOS Setup Information3-9The default setting is [Standard and Bidirectional].If you set EPP as the parallel port operation mode, do not use
3BCh as the parallel port base address; otherwise, I/O conflicts
may occur.
ECP DMA Channel
Set the ECP DMA Channel parameter if you set the Parallel Port Operation Mode to [Enhanced
Capabilities Port(ECP)].  The default value, with ECP selected, is [0].
3.4.8Passwords
Two passwords are implemented in this notebook.  The Setup Password prevents unauthorized
access to the Setup utility, while the Power On Password prevents unauthorized access to the
notebook during boot-up and resume from hibernation.
Setting a Password
To set a password, select the desired password (Setup and Power On) to set or edit, and press ¬ ¬
or ® ®.  The password prompt (a key) appears:A message below the menu prompts you to enter a password.  The password may consist of up to
seven characters which do not appear on the screen when you type them.  After typing your
password, press Enter.  Another prompt appears asking you to retype your password to verify your
first entry.
After setting a password, the notebook sets this parameter to [Enabled].  The next time you
boot the notebook, resume from hibernation mode or run the Setup utility, the password prompt
appears.  Key in the appropriate password (Power On or Setup).  If the password you entered is
incorrect, an “X” appears.  You have three chances to type in the correct password.  After three
tries, the following message appears:
Incorrect password specified.  System disabled.The notebook freezes up and disables all devices.  You must turn off the notebook and turn it on
again to retry.  If you forget your password, you must reset the configuration values stored in
CMOS to defaults.  Resetting CMOS requires opening up the notebook, so contact your dealer for
assistance.
Removing a Password
To remove a password, select the desired password (Setup and Power On) to remove and press
¬ ¬ or ® ® to set it to [None]. 
						

							3-10Service Guide3.4.9CardBus Support
The notebook comes pre-installed with a Windows 95 version which has built-in support for
CardBus.  In this case, CardBus Support is not needed and set to [Disabled].  If in case you
install an older version of Windows 95 which does not have built-in Cardbus driver support, you
need to enable this parameter.  The default setting is [Disabled].To verify your Windows 95 version, access the System icon in
the Control Panel.  In the System section of the General tab,
verify that the Windows 95 version is 4.00.950 B. 
						

							BIOS Setup Information3-113.5Power Management Settings
Besides accessing this screen from POST (F2), you can also press Fn-F6 during runtime to
access this section of Setup.
Power Management SettingsPower Management Mode ------------- [Enabled]
Display Standby Timer ------------- [ 1] Minute(s)
Hard Disk Standby Timer ----------- [ 1] Minute(s)
System Sleep Timer ---------------- [ 3] Minute(s)
System Sleep Mode ----------------- [Hibernation]
System Resume Timer Mode ---------- [Disabled]
System Resume Date ---------------- [--/--/----]
System Resume Time ---------------- [--:--:--]
Modem Ring Resume On Indicator ---- [Enabled]
Battery-low Warning Beep ---------- [Enabled]
Sleep Upon Battery-low ------------ [Enabled]­¯=Move Highlight Bar, ®¬=Change Setting, F1=Help, Esc=Exit3.5.1Power Management Mode
With enabled, all the timers in Setup take effect unless specifically disabled by the user.  Select
[Disabled] to turn off all the timers.  The default setting is [Enabled].You cannot disable this parameter in Setup if APM is installed under DOS,
Windows or Windows 95.  To disable APM, type Power Off under DOS, or
disable the Power icon in the Windows Control Panel.
3.5.2Display Standby Timer
The notebook shuts off the LCD backlight and turns off the CRT video as well, if there is no
activity from the keyboard or external PS/2 mouse within the period specified by this timer.  To
turn the display back on, press a key or move the mouse.
The valid values for this timer range from 1 to 15 minutes with default set at [1].  Select [Off]
to disable the timer.
3.5.3Hard Disk Standby Timer
The hard disk drive enters standby mode if there are no disk read/write operations within the
period specified by this timer.  The hard disk returns to normal mode once the notebook accesses
it. 
						

							3-12Service GuideThe valid values for this timer range from 1 to 15 minutes with default set at [1].  Select [Off]
to disable the timer.
3.5.4System Sleep Timer
This parameter enables you to set a timeout period for the notebook to enter either standby or
hibernation mode.  The System Sleep Mode parameter determines which sleep mode the
notebook will enter into.
The valid values for this timer range from 1 to 15 minutes with default set at [3].  Select [Off]
to disable the timer.
3.5.5System Sleep Mode
This parameter tells the notebook which sleep mode (Standby or Hibernation) to enter into when
the System Sleep Timer times out.  The default setting is [Hibernation].
3.5.6System Resume Timer Mode
When enabled, the notebook resumes from standby mode at the specified Resume Date and
Resume Time parameter settings.When the notebook is in hibernation mode, it cannot resume when this
parameter is enabled.
3.5.7System Resume Date and Time
The Resume Date and Resume Time parameters let you set the date and time for the resume
operation.  The date and time fields take the same format as the System Date and Time
parameters in the Basic System Settings screen.Setting a resume date and time that is not valid automatically disables these
fields.  A successful resume occurring from a date and time match
automatically disables these fields.
3.5.8Modem Ring Resume On Indicator
When enabled, the notebook wakes up from standby mode and returns to normal mode when a
PCMCIA modem detects a ringing tone.  The default setting is [Enabled].When the notebook is in hibernation mode, it cannot resume from a modem
ring. 
						

							BIOS Setup Information3-133.5.9Battery-low Warning Beep
This parameter allows you to enable or disable the warning beep generated by the notebook when
a battery-low condition occurs.  The default setting is [Enabled].
3.5.10Sleep Upon Battery-low
This parameter enables the notebook to enter standby or hibernation mode when a battery-low
condition takes place.  The default setting is [Enabled]. 
						

							3-14Service Guide3.6System Information Reference
If you access Setup during runtime (Fn-F6), pressing PgDn after the Power Management Settings
screen displays a summary of your notebook’s components and settings.
System Information ReferenceCPU ID : PentiumInternal Cache : 16KB, Enabled
CPU Clock : 133 MHzExternal Cache : 256KB, Enabled
System DRAM : 16 MBPointing Device : Detected
Video DRAM : 1 MBInternal KB : 85 key
Floppy Disk A : 1.44 MB
 Security : Normal
Floppy Disk B : None
 Security : Normal
Hard Disk : 1160 MB
 Security : Normal
CD ROM : None
System Boot Drive : Drive A Then Drive C
CD ROM Bootable : Disabled
Serial Port 1 : 3F8h, IRQ4
Parallel Port : 378h, IRQ7
 Operation Mode : Standard and BidirectionalF1=Help, Esc=ExitThe items in this screen are not user-configurable.  See table below. 
						

							BIOS Setup Information3-15Table 3-6System Status DescriptionsItemDescriptionCPU IDShows the processor typeCPU ClockShows the processor speedSystem memoryShows the total system memoryVideo memoryShows the total video memoryFloppy Disk AShows the floppy drive A type   SecurityShows floppy drive A security settingFloppy Disk BShows the floppy drive B type   SecurityShows floppy drive B security settingHard DiskShows the IDE drive type and size and its security setting   SecurityShows hard disk drive security settingCD ROMShows the presence of a CD-ROM driveSystem Boot DriveShows the boot sequence settingCD ROM BootableShows if the CD ROM Bootable feature is enabled or notSerial Port 1Shows the serial port base address and IRQParallel PortShows the parallel port base address and IRQ   Operation ModeShows the parallel port operation modeInternal CacheShows the internal cache size and settingExternal CacheShows the external cache sizePointing DeviceShows the presence of a pointing deviceInternal KBShows the internal keyboard typeThis screen may show other items which are not in this list if certain parameters
settings are changed and enabled. 
						

							3-16Service Guide3.7Load Setup Default Settings
Selecting this option allows you to load all the default settings.  The default settings are the values
initially stored in CMOS RAM intended to provide high performance.  If in the future, you change
these settings, you can load the default settings again by selecting this option.
When you select this option, the following prompt appears:
Load Setup Default SettingsAre you sure?[Yes]           [No]Select [Yes] to load the default settings or [No] to abort the operation.