FAQ and troubleshooting
67
keyboard may get warm slightly. Since your Joybook has a
thermally controlled fan, when the CPU and/or internal
temperature of the Joybook reaches a certain temperature level,
the fan is turned ON and stays ON until the temperature drops
to a pre-defined level.
There is no sound coming from the speakers.
Verify the following:
• The speakers may have been muted. Check the volume control
(speaker icon) in the notification area located in the lower
right corner of the desktop to see if the volume has been
muted. If so, please restore the volume.
• The speakers may have been turned off. Use the <Fn> +
<F10> hotkey combination to turn them on.
• The volume may have been set too low. Use the <Fn> + <F12>
hotkey combination to increase the volume.
• An earphone or external speakers may have been connected to
the audio output jack, turning off the Joybook's built-in
speakers automatically.
When a CD or DVD is inserted into the optical drive, there is no
response.
Verify the following:
• Your Joybook is turned on, and the CD or DVD discs are
properly inserted into the optical drive.
• The inserted CD or DVD is not bent or badly scratched.
• If you hear the noise from the optical drive when the disc plays,
the optical drive might be deformed, and the Joybook needs to
be repaired.
Why is the hard disk capacity displayed by the OS different from
its nominated capacity?
You may have discovered that the capacity of a 10GB hard disk
becomes 9GB when displayed from the OS, and 20GB becomes
19GB, etc. The bigger the capacity, the bigger the difference. It is
because hard disk manufacturers and OS developers calculate
hard disk capacity in different ways. As a result, the nominated
capacity is different from the exact capacity displayed by the OS.
Example of a 40GB hard disk:
Exact capacity of a 40GB hard disk displayed in the OS:
40,000,000,000÷1024÷1024÷1024=37.2529 (GB).
Furthermore, when a hard disk is partitioned, the system will
reserve some space on the drive for system files. Therefore, the
Calculation of hard disk
capacity by hard disk
manufacturers
Calculation of hard disk
capacity by OS
developers
1GB=1,000MB
1MB=1,000KB
1KB=1,000 bytes
1GB=1,024MB
1MB=1,024KB
1KB=1,024 bytes
Calculation by hard disk
manufacturers
Calculation by OS
developers
40GB=40,000MB
=40,000,000KB
=40,000,000,000 bytes
40GB=40,960MB
=41,943,040KB
=42,949,672,960 bytes
Summary of Contents for DHS500
Page 1: ...Joybook S57 Series User Manual...
Page 82: ...Appendix 78 Memo...
