Toshiba Satellite P20-25 Series, Maintenance Manual

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1 Hardware Overview 1.2 System Unit
Memory
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System DRAM
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Two JEDEC standard 200-pins SO-DIMM memory s2.5V
64/128/256MB/512MB.
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System & KB Combine ROM BIOS
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512KB Flash ROM
Video Subsystem
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nVIDIA NV34M Graphics Controller)
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Microsoft-DX9 & OpenGL-2.0 (with NVIDIA extensions) Graphics APIs
hardware support
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50 million triangles per second setup engine
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1000 million pixels per second fill rate
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256-bit 3D and 2D graphics accelerator, with full 32/64/128-bit color with 32-
bit z/stencil (24+8 bit) support
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Complete pipeline support for 128-bit color for ultimate rendering quality
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NVIDIA A anti-aliasing technology for full Quincunx AA
capability –even for high-resolution UXGA panels
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Raw Peak memory bandwidth of 8.0 GB/second
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Supports 128-bit DDR SDRAM, driven by a twin memory channel architecture,
for maximizing memory bandwidth utilization to enhance rendering
performance while minimizing power-consumption as well.
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DirectX and S3TC texture compression support
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AGP8x (with Fast Writes & Side-band-Signaling support) - for enhanced host
interface bandwidth up-to 2.1Gbytes/second; with AGP4x, 2x support as well
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Enhanced nView+ multi-display technology supporting any combination of
notebook LCD, desktop VGA monitor, DVI display or TV set; with new user
& applications control & interface support capabilities
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Dual CRTC/Simultaneous Dual Display (same or different surfaces)
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Integrated dual LVDS Transmitter supporting LCD panels up to 2048x1536
@60Hz
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Integrated 400 MHz Palette-DAC for analog VGA monitors up to 2048x1536
@85Hz refresh
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Integrated NTSC/PAL TV encoder supporting resolutions up to 1024x768
without the need for panning, with built-in Macrovision(7.1.L1) copy-
protection
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Integrated TMDS transmitter for Digital Visual Interface support with scaling
and filtering for flat panels up to 1600x1200 @60Hz
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DVD- and HDTV-ready MPEG-2 decoding up to 1920x1080i resolutions
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Most comprehensive MPEG-2 hardware decode functionality, including
Inverse Quantization,
Inverse Discrete Cosine Transform, Motion Compensation and Color-Space-
Conversion
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VIP1.1 interface support for Analog Video In/Out functionality
1-6 Satellite P20-25 Series Maintenance Manual