Acer Altos G500 User Manual
1 System overview
4
Note: The DDR SDRAM module should work under 3.3 volts only;
5-volt memory devices are not supported.
5-volt memory devices are not supported.
The mainboard supports 266 MHz DDR-SDRAM (PC-2100) module.
System chipsets
VIA Pro266T chipset
The VIA Pro266T chipset was specifically designed to meet the needs of
high performance systems. It consists of two components: VT8653
(north bridge) and VT8233 (south bridge).
high performance systems. It consists of two components: VT8653
(north bridge) and VT8233 (south bridge).
•
VT8653 (north bridge) provides the host interface, memory system
control interface, PCI interface, and AGP interface to boost
graphics performance.
control interface, PCI interface, and AGP interface to boost
graphics performance.
•
VT8233 (south bridge) integrates super I/O functions like keyboard
and mouse interface, floppy disk controller, advanced digital data
separator, two compatible serial ports (UARTs), one parallel port,
on-chip 12 mA AT bus drivers, one floppy direct drive support, and
Intelligent Power Management (IPM) support.
and mouse interface, floppy disk controller, advanced digital data
separator, two compatible serial ports (UARTs), one parallel port,
on-chip 12 mA AT bus drivers, one floppy direct drive support, and
Intelligent Power Management (IPM) support.
SCSI subsystem
The dual-channel AIC-7899 single-chip host adapter delivers Ultra
160/m SCSI data transfer rates which double the Ultra-2 SCSI data
transfer rate of up to 160 MByte/s. With two channels, it delivers a
total of 320 MByte/s bandwidth. In addition, the AIC-7899 features a
66 MHz, 64-bit PCI interface that supports zero wait-state memory
which also operates on 33 MHz, 32-bit PCI buses. It supports up to 15
devices on a 12-meter cable (or 25 meters in a point-to-point
configuration), making it ideal for both clustering and RAID
configurations.
160/m SCSI data transfer rates which double the Ultra-2 SCSI data
transfer rate of up to 160 MByte/s. With two channels, it delivers a
total of 320 MByte/s bandwidth. In addition, the AIC-7899 features a
66 MHz, 64-bit PCI interface that supports zero wait-state memory
which also operates on 33 MHz, 32-bit PCI buses. It supports up to 15
devices on a 12-meter cable (or 25 meters in a point-to-point
configuration), making it ideal for both clustering and RAID
configurations.
AA G500.book Page 4 Thursday, September 13, 2001 6:56 PM