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  ISSUE:HP OmniBook 300 and 425 - standard troubleshooting

              methods for general protection faults.


  SOLUTION:According to Microsoft (R), a GPF "signifies that

              something unexpected has happened within the Windows

              environment, usually an improper memory access.  In

              other words, something running within the Windows

              environment has made a call to a location in memory

              that it did not have access to, potentially overwriting

              and corrupting other program code in that area of

              memory.  More specifically, an application or Windows

              component might read or write to a memory location that

              has not been preallocated, or memory that it does not

              'own.' "


              As a responsible computer user, it is very important to

              perform frequent backups of critical data.


              If you are having frequent GPFs on your system, here

              are a few tips that reduce the number of these errors.

              (Note, this list is not all inclusive.)



              With any Windows-based computer, steps may be performed

              to increase the efficiency of Windows memory and system

              resource allocation.  The following suggestions are

              from Microsoft's Technical Information Network.

              *  Periodically exit Windows to free system resources.

                 (For regular use, exit Windows about once a week.)

              *  Minimize program groups that are seldom used in

                 order to conserve system resources.

              *  Avoid using wallpaper, or use a small bitmap and

                 display it as tile instead of center.

              *  Do not leave program groups open that contain many

                 icons.  (Hint:You may move your most commonly used

                 icons into their own group.)

              *  If you run an application, such as Word or Excel,

                 that allocates system resources each time it is

                 launched, leave it open instead of closing and

                 reopening it.

              *  Do not load fonts that are not being used.



              Some Windows applications, such as WinFax LITE, require

              DOS conventional memory in addition to extended memory.

              If GPFs are occurring as a result of insufficient DOS

              memory, the following steps will help decrease the

              number of GPFs by increasing DOS memory.




              *  Add the following line after

                 device=d:\windows\himem.sys /machine:2.




              *  Insert rem in front of the following line if not

                 needed.  (The obcic program is required for plug-in

                 PCMCIA modem cards.)


                    install=d:\omnibook\obcic.exe /gen 1


              *  Decrease the lastdrive=y line to lastdrive=p.  (The

                 lastdrive letter may vary depending on the needs of

                 your particular software.)




                 *  Insert rem in front of the following lines that

                    are not needed:

               d:\windows\smartdrv.exe a- b- e  (This will disable the

                                                SMARTDrive utility.)

               d:\share                         (The share program is

                                                required by some

                                                applications such as

                                                Microsoft Mail.)

               d:\obmouse    (The obmouse utility enables the OmniBook

                             mouse in DOS applications and allows the

                             use of a serial mouse.)

               call d:\win   (This command loads LapLink Remote and

                             starts Windows.)

                 *  Add the following line:

               obwin  (This will start Windows without loading

                      LapLink Remote.)

                 *  Ensure all three of the following lines are

                    present and the c:\windows\temp directory exits.

                         set temp=c:\windows\temp

                         set tmp=c:\windows\temp

                         set mouse=c:\mouse



              GPFs that occur consistently in the HP Appointment Book

              application (or are caused by the appointment book) may

              be a result of a corrupted Alarms Manager data file.

              The _alarms.dat file is located in the c:\hppim

              directory.  Exit Windows and delete this file.  Next,

              reset the HP OmniBook 300 or 425 (use the Reset

              button).  The _alarms.dat file will be rebuilt when

              Windows is loaded.


              In addition, both the HP Appointment and Phone Book

              applications implement automatic data access.  This

              means that both of these applications have direct

              read/write capability to the data file.  This provides

              the convenience of eliminating the need to open the

              current data file or save after each entry is made.


              The risk of automatic data access is the higher

              possibility of file corruption.  For example, if either

              (or both) the HP Appointment or Phone Book are open and

              the HP OmniBook 300 or 425 enters a low memory state,

              it is possible that the open data file may become

              corrupted.  (Corrupted data files may eventually cause

              GPFs on the HP OmniBook 300 or 425.)


              Because of the possibility of data file corruption, it

              is advisable to close both the HP Appointment and Phone

              Books when not in use.  When needed, the HP Appointment

              Book can be easily opened with the Fn + F3 key

              sequence.  Similarly, the HP Phone Book can be opened

              conveniently with the FN + F4 key sequence.



              If GPFs tend to occur more often in a Windows

              application that has been installed after purchase, the

              error messages may be directly related to the specific

              configuration of that application.


              Certain third-party programs may not be compatible

              with, or configured correctly for, ROM Windows or

              Standard Mode, for example.  To prevent this problem,

              always check the system requirements of an application

              before installing onto the HP OmniBook 300 or 425.


              To determine if the GPFs are being caused by an

              application installed after purchase, first operate the

              HP OmniBook 300 or 425 without the application running.

              Depending on the nature of the application, it may need

              to be "uninstalled."


              If the application does not include an uninstall

              function, the following steps will remove any reference

              to this application from the Windows environment.

              (Note, these steps will, in effect, remove any

              reference to all Windows applications installed after


              1. Back up the following files:

                 *  From the c:\tsi directory:



                 *  From the c:\mouse directory:



                 *  From the c:\winword directory:



                 *  From the root directory of drive C:




                 *  From the c:\windows directory:











              2. Exit Windows and type obsetup/f.


              3. Operate the HP OmniBook 300 or 425 with the

                 application removed.  If GPFs have been

                 significantly reduced, they were likely caused by

                 the configuration of the application that was


              If the above steps do not reduce the number of GPFs in

              the particular application, it may be reinstalled.  To

              minimize the risk of GPFs in an application to be

              installed, ensure the following have been performed:

              *  Run chkdsk/f and defrag utilities on drive C before


              *  Check the system requirements to ensure

                 compatibility with the HP OmniBook 300 or 425.

              *  Run the setup program to install the application

                 onto the HP OmniBook 300 or 425  (do not simply copy

                 the files).



              The system.ini file, located in the c:\windows

              subdirectory, is used by Windows to retain global

              system information necessary for Windows to run.

              Ensure the following lines are present in the [386Enh]

              section of this file:

              *  EMMExclude=C000-EFFF

              *  MaxBPs=768




              If frequent GPFs are occurring on the HP OmniBook 300

              or 425, it may be the result of corrupted files or

              faulty hardware.  The following utilities are available

              to help diagnose and alleviate system complications:




              This is a DOS command that checks the integrity of the

              File Allocation Table and system directories.  Exit

              Windows (from the File menu of Program Manager) before

              executing this command.




              This is a DOS command that reorganizes the files on the

              disk or card to optimize performance.  Exit Windows

              (from the File menu of Program Manager) before

              executing this command.




              The HP OmniBook 300 or 425  self-test is capable of

              running diagnostics of several hardware components

              including flash cards, the hard disk, and RAM.

              To run the self-test:

              1. Exit Windows and turn off the HP OmniBook 300 or


              2. Hold down the Esc key and press the On/Off key until

                 a series of beeps are emitted.

              3. Release both buttons.

              The HP OmniBook 300 or 425 screen will be blank for a

              few seconds before the self-test screen appears.


              Items may be selected for testing by highlighting the

              appropriate component and pressing the Enter key.

              Note, unexpected results may appear on the following

              hardware components:

              *  Display - the Enter key needs to be pressed

                 periodically to progress through this test.

              *  IR port - ensure the IR port is not in line with

                 another infrared device.  Also, ensure the port door

                 is closed.

              *  RS232 port and Printer port -  both of these require

                 a loop-back device to run the self-test properly.

              *  Keyboard - if the keys are not entered in the

                 correct order, an error message will result.


              Note, the hard disk self-test checks about 10 percent

              of the total disk space.  To run a more complete test,

              hold down the control (Ctrl) key while pressing the

              Enter key.  This test checks all sectors and may take

              40 to 60 minutes to complete.  Because this test is

              lengthy, you may wish to plug in the ac adapter to

              prevent the battery from draining.  (Note, this test is





              The obsetup utility will copy all the files located in

              the d:\obsetup directory to the C drive.  This will

              ensure that these files are in a default state and not




          NOTE:Before performing the obsetup command,

                    back up all the files mentioned above in

                    the GPFs with Applications Installed

                    after Purchase section.  Then, exit

                    Windows and type obsetup/f and press the

                    Enter key.




              Fdisk is a DOS utility that will partition and reformat

              drive C and then issue the obsetup command.  This

              command will destroy all data on drive C.



          NOTE:It is very important that you back up

                    all critical data files along with the

                    files mentioned above in the GPFs with

                    Applications Installed after Purchase


              Exit Windows and change to the D drive (type d:and

              press Enter).  Next, type fdisk c:and press the Enter



                  Copyright  Hewlett-Packard Co. 1996

       This information is subject to change without notice and

                 is provided "as is" with no warranty.

          Hewlett-Packard shall not be liable for any direct,

        indirect, special, incidental or consequential damages

             in connection with the use of this material.

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