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9.347 bytes |
Service Hints & Tips |
Document ID: MCGN-3G2THC |
Aptiva - GPFs In Audio Station
Applicable to: United States
If you turn off the machine with Rapid Resume enabled when using Audio Station to play an audio CD, you may experience a General Protection Fault (GPF) when you restart the system. The GPF is being caused because the Mwave is not being properly reset. Disable Rapid Resume, and reboot, and the problem will go away.
How do I disable Rapid Resume?
To disable Rapid Resume, follow these steps.
1. Power the system off.
2. Turn on the system, and Press 'F1' when you see the square box in the upper right corner of the screen. (just before the POST beep.) This will bring you to the Configuration Utility.
3. With your arrow key, move down to 'Rapid Resume', and press [ENTER]
4. Tab down to 'Rapid Resume', and toggle to read 'DISABLED.' (toggle by hitting the left or right arrow keys.)
5. Hit 'ESC' twice, and answer 'YES' to save settings and reboot. Rapid Resume should now be disabled.
IF YOU NOW GET SOUND BUT WISH TO VERIFY SOUND CARD FUNCTIONS, DO THE FOLLOWING:
NOTE: If you still do NOT get sound, go to procedure B for further information.
[A]
1. If you are in Windows, exit windows and select DOS prompt from Menu. If in Win 95, select "START, SHUTDOWN and Boot to MS-DOS".
2. From DOS prompt, CD to "MWD", CD to "UTILS". Type "DIAGS" and press [ENTER].
3. Remove all cables from the Mwave card and select "Y" to run diagnostics.
NOTE: If you receive a "Cannot get adapter settings" related error, you will need to download the DIAGFIX.EXE file from the BBS.
4. If the test passes, press "O" or select "OK". If the test fails, make sure all cables are disconnected from the Mwave card and type "DIAGS" at a DOS prompt once again.
5. Type "FASTCFG" and press enter. This should bring up a menu. Select "AUDIO" or press "A". Choose "DEFAULTS".
6. Press "H" for hardware settings. Verify the settings are correct (see default below), change to default if not correct and then press "O" for OK.
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I/O |
IRQ |
DMA |
COM# | |
|
Sound Blaster |
220 |
5 |
1 | |
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General Midi |
330 |
9 |
9 | |
|
Modem/Fax |
3F8 |
4 |
n/a |
1 |
|
Mwave System |
CE30 |
10 |
7 |
Reboot system.
If there are still sound problems and if the Mwave card passed the diagnostics test and the FASTCFG settings are correct, take in account the following:
DOS audio applications use Sound Blaster compatible interface to create sound and music, or may also allow the MPU-401, sometimes called General MIDI interface, to create music. The MPU-401 uses wavetable music synthesis which generally sounds much better than normal Sound Blaster FM synthesis. For native DOS applications (not those in a DOS session of Windows or OS/2), Mwave must be instructed to act like a Sound Blaster card.
Go to the native DOS prompt and type FASTCFG. This utility, often run in the autoexec.bat, sets up Mwave's personality under DOS. To enable Mwave for DOS audio one of these options should be checked:
Games (uses Sound Blaster emulation for both sound and FM music synthesis)
Advanced Audio (uses Sound Blaster emulation for sound and MPU-401 wave table synthesis for music -- assumes application supports MPU-401 interface)
Tele-game (uses Sound Blaster emulation for both sound and FM music synthesis, and also enables the 14.4 DOS modem)
Advanced Modem (enables the 28.8 DOS modem -- DOS audio will not work in this mode)
Also you can check the Audio button on the bottom of the FASTCFG screen to see if the DOS audio volume settings are appropriate. If Mwave was set up correctly for native DOS with FASTCFG or setting FASTCFG properly did not resolve the problem, then there may be a problem in the application program's audio setup, or with the fixed addresses, interrupts, and DMA signals used by the Sound Blaster compatible function.
[B]
IF DISABLING RAPID RESUME DID NOT CORRECT THE SOUND PROBLEM, PERFORM THE FOLLOWING:
Check that speakers are plugged into the correct jack on the rear panel on the Mwave adapter board. There is an icon in the Mwave program group that shows a picture of all the external connections. Amplified speakers are needed since Mwave boards only support stereo line-level outputs. That means that the speakers must be powered either by a 110V to DC transformer (small black box) that must be plugged into an electrical outlet and turned on, or by batteries that could be dead. If headphones were provided with the product or there are headphones with a 1/8" stereo plug available, you can check audio output with headphones by plugging them into the line out jack on the back of the Mwave board to eliminate the speakers from being a problem source or plug the speakers into some other form of audio device, like a Walkman, to verify speakers are OK. Also check volume controls.
Do the speakers work with other audio sources?
If the speakers still do NOT work, they need to be replaced. Contact the IBM PC Help Center at 1-800-772-2227 for a replacement if they are products of IBM and are still under warranty.
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Search Keywords |
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Hint Category |
Mwave, Audio, Entertainment Software, DOS/Windows 3.x, Error Messages | |
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Date Created |
11-04-97 | |
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Last Updated |
08-03-99 | |
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Revision Date |
08-03-2000 | |
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Brand |
IBM Aptiva | |
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Product Family |
Aptiva | |
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Machine Type |
2144, 2168 | |
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Model |
5R5; M91; 2R5; 2R7; 2R8; M30; M35; M50; 2R6; 4R7; 4R8; M40; M54; M58; 3R0; 3R8; M60; M70; 3R4; 3R6; 4R1; 4R9; M31; M51; M52; M63; 2R9; 3R1; 3R3; 3R5; 3R7; 3R9; 4R0; 4R2; 4R3; M41; M53; M55; M56; M57; M61; M62; M71; M72; 5R1; 6R3; A10; A12; A14; 5R2; 5R3; 5R6; 5R8; 5R9; 6R0; 6R4; 6R5; A15; A40; A44; A45; A50; A51; A52; A90; A92; A94 | |
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TypeModel |
21685R5 | |
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Retain Tip (if applicable) |
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