The 7521 plus model motherboard will accept Intel Pentium III at FSB 133/100MHz and Celeron at FSB 66MHz processor with FC-PGA packaged. Those are Pentium III 600/650/667/700/733/ 750/800/866 MHz, and Celeron 3/566/600/633/667/700/733/766 MHz. This system is based on PCI architecture and is fully compatible with IBM PC/AT specification, which has standard hardware peripheral interface.
The power management complies with Advanced Configuration and Power Interface (ACPI) 1.0. It also provides easy configuration through CMOS setup, which is built in system BIOS software and can be pop-up by pressing F2 key at system start up or warm reset. System also provides icon LEDs to display system status, such as AC Power indicator, FDD, HDD, NUM LOCK, CAP LOCK, SCROLL LOCK, SUSPEND MODE and battery present, capacity & charging status. It also equipped with LAN, FIR, USB port, 3D stereo audio and TV-OUT functions.
The memory subsystem supports 64MB on board SDRAM, one 144pin SO-DIMM socket for upgrading up to 320MB. The SiS630S integrates the north bridge chip, super south bridge and the real 128-bit 3D graphics accelerator all into one single chip. It provides, 3D Positional Audio, Advance H/W DVD playback and 2D/3D graphics engine. The TI 1225 cardbus controller supports PCMCIA and CARDBUS.
The National Semiconductor PC97338 Super I/O controller integrates the standard PC I/O functions: floppy interface, two FIFO serial ports, one EPP/ECP capable parallel port, and support for an IrDA 1.1, 1.0 and sharp ASK compatible infrared interface. To provide for the increasing number of multimedia applications, a CODEC CS4299 is integrated onto the motherboard that support 16-bit stereo, Sound Blaster Pro, Windows Sound System compatibility, and full-duplex capabilities to meet the demands of interactive multimedia applications.
The SiS900 is a single chip 10/100Mbps Fast Ethernet LAN solution, which fully integrates both the Media Access Controller (MAC) with PCI bus master interface and 802.3u compliant 10/100Mbps physical layer interface into a 128 pin PQFP, 0.35um process chip. It is targeted at low-cost, low-power, high volume desktop PC motherboards, mobile PC module, adapter cards, and embedded systems. The Chrontel’s CH7005 digital PC to TV encoder is a standalone integrated circuit that provides a PC 99 compliant soluti for TV output.
It provides a universal digital input port to accept a pixel data stream from a compatible VGA controller (o equivalent) and converts this directly into NTSC or PAL TV format. A full set of software drivers and utilities are available to allow advanced operating systems such as Windows 98 or Windows ME to take full advantage of the hardware capabilities. Features such as bus mastering IDE, Plug and Play, Advanced Power Management (APM) with application restart, software-controlled power shutdown. Following chapters will have more detail description for each individual sub-systems and functions.
In order to change a laptop video card, start by removing the power supply from the system and removing the installed batteries. Look for a video card underneath a laptop's keyboard with help from a laptop repair specialist in this free video on laptop computer video cards