Lenovo PC 300PL Techical Information Manual - Page 17

Monitor support, Video memory, Audio subsystem, Product Recovery CD

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Chapter 2. System board features Figure 3. Supported VGA video modes Mode (hex) 00 01 02 03 04 05 06 07 0D 0E 0F 10 11 12 13 Display mode Text Text Text Text Graphics Graphics Text Text Graphics Graphics Graphics Graphics Graphics Graphics Graphics Screen resolution 40 x 25 characters 40 x 25 characters 80 x 25 characters 80 x 25 characters 320 x 200 pixels 320 x 200 pixels 640 x 200 pixels 80 x 25 characters 320 x 200 pixels 640 x 200 pixels 640 x 350 pixels 640 x 350 pixels 640 x 480 pixels 640 x 480 pixels 320 x 200 pixels Colors 2 16 B/W 16 4 4 2 Mono 16 16 Mono 16 2 16 256 Buffer start (hex) B8000 B8000 B8000 B8000 B8000 B8000 B8000 B0000 A0000 A0000 A0000 A0000 A0000 A0000 A0000 Dot clock (MHz) 28.322 28.322 28.322 28.322 25.175 25.175 25.175 28.322 25.175 25.175 25.175 25.175 25.175 25.175 25.175 Sweep rate (kHz) 31.5 31.5 31.5 31.5 31.5 31.5 31.5 31.5 31.5 31.5 31.5 31.5 31.5 31.5 31.5 Refresh rate (Hz) 70 70 70 70 70 70 70 70 70 70 70 70 60 60 70 Monitor support The video subsystem provides a 15-pin monitor connector on the system board. For information on connector pin assignments, see Appendix A, "Connector pin assignments" on page 25. Video memory The video memory interface is controlled by an integrated graphics subsystem on the AGP adapter with up to 16 MB video RAM for 2D/3D graphics. Audio subsystem The PC 300PL Personal Computer comes with an integrated audio controller. These models are capable of playing and recording sounds and support SoundBlaster, Adlib, and Microsoft Windows Sound System applications. The device drivers for the preinstalled audio adapter are on the hard disk. The device drivers are also available on the Product Recovery CD or Device Driver and IBM Enhanced Diagnostics CD that comes with the computer. If you connect an optional device to the audio adapter, follow the instructions provided by the manufacturer. (Note that device drivers might be required. If necessary, contact the manufacturer for information on these device drivers.) The following connectors are available on the integrated audio controller: Line/headphone out port for connecting powered speakers. To hear audio from the adapter you must connect a set of speakers to the Line out port. These speakers must be powered with a built-in amplifier. In general, any powered speakers designed for use with personal computers can be used with the audio subsystem. These speakers are available with a wide range of features and power outputs. Line in port for connecting musical devices, such as a portable CD player or stereo system. Chapter 2. System board features 9

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Chapter 2.
System board features
Figure 3. Supported VGA video modes
Mode
(hex)
Display
mode
Screen resolution
Colors
Buffer start
(hex)
Dot
clock
(MHz)
Sweep
rate
(kHz)
Refresh
rate (Hz)
00
Text
40 x 25 characters
2
B8000
28.322
31.5
70
01
Text
40 x 25 characters
16
B8000
28.322
31.5
70
02
Text
80 x 25 characters
B/W
B8000
28.322
31.5
70
03
Text
80 x 25 characters
16
B8000
28.322
31.5
70
04
Graphics
320 x 200 pixels
4
B8000
25.175
31.5
70
05
Graphics
320 x 200 pixels
4
B8000
25.175
31.5
70
06
Text
640 x 200 pixels
2
B8000
25.175
31.5
70
07
Text
80 x 25 characters
Mono
B0000
28.322
31.5
70
0D
Graphics
320 x 200 pixels
16
A0000
25.175
31.5
70
0E
Graphics
640 x 200 pixels
16
A0000
25.175
31.5
70
0F
Graphics
640 x 350 pixels
Mono
A0000
25.175
31.5
70
10
Graphics
640 x 350 pixels
16
A0000
25.175
31.5
70
11
Graphics
640 x 480 pixels
2
A0000
25.175
31.5
60
12
Graphics
640 x 480 pixels
16
A0000
25.175
31.5
60
13
Graphics
320 x 200 pixels
256
A0000
25.175
31.5
70
Monitor support
The video subsystem provides a 15-pin monitor connector on the system board.
For information on
connector pin assignments, see Appendix
A, “Connector pin assignments” on page
25.
Video memory
The video memory interface is controlled by an integrated graphics subsystem on the AGP adapter with
up to 16 MB video RAM for 2D/3D graphics.
Audio subsystem
The PC 300PL Personal Computer comes with an integrated audio controller.
These models are capable
of playing and recording sounds and support SoundBlaster, Adlib, and Microsoft Windows Sound System
applications.
The device drivers for the preinstalled audio adapter are on the hard disk.
The device drivers are also
available on the
Product Recovery CD
or
Device Driver and IBM Enhanced Diagnostics CD
that comes
with the computer.
If you connect an optional device to the audio adapter, follow the instructions provided by the
manufacturer.
(Note that device drivers might be required.
If necessary, contact the manufacturer for
information on these device drivers.)
The following connectors are available on the integrated audio controller:
±
Line/headphone out
port for connecting powered speakers.
To hear audio from the adapter you must
connect a set of speakers to the Line out port.
These speakers must be powered with a built-in
amplifier.
In general, any powered speakers designed for use with personal computers can be used
with the audio subsystem.
These speakers are available with a wide range of features and power
outputs.
±
Line in
port for connecting musical devices, such as a portable CD player or stereo system.
Chapter 2.
System board features
9