Motherboard Installation
Page 6
[M] IDE Connectors
This motherboard have two independent high performance bus-mastering PCI IDE interfaces capable
of supporting up to Mode 4 devices. The system BIOS supports automatic detection of the IDE device
data transfer rate and translation between different kinds of device mode such as Logical Block
Addressing (LBA) and Extended Cylinder Sector Head (ECSH) translation modes and ATAPI (e.g.,
CD-ROM) devices on both IDE interfaces.
[N] Floppy Drive Connector
A 34-pin connector on-board allows connection to two 360K, 720K, 1.2M, 1.44, 2.88M floppy disk
drives.
[O] 82443BX / LX PCI Bridge, AGP and Memory Controller (PAC)
The 82443BX/LX comes in a 492 pin BGA package and provides the following features:
•
CPU interface control up to 100Mhz for 6ABX with true 32-bit addressing.
•
CPU interface control up to 66Mhz for 6ALX with true 32-bit addressing
•
Integrated 64/72-bit DRAM controller, supporting from 8 MB to 512MB main
memory.
•
Fully synchronous PCI bus interface with 33 MHz bandwidth.
•
Write data Buffering and supports PENTIUM II -to-PCI burst writes.
[P] DIMM Sockets
Four 168 pins standard DIMM socket allows your system using either for 3.3V unbuffered SDRAM.
[Q] 3V Lithium Battery
An on-board battery holder is used to hold a 3 Volts CR-2032 Lithium battery which makes the
battery’s replacement more convenient. This battery is used to supply power for the RTC CMOS RAM
in order to save your system setting and date/time counting during system power-off. In general, the
battery’s lifetime is about 5 years. If you see a “BIOS checksum error” message happened while
system turn-on, the battery low may cause it. You can try to fix it by simply replaced the battery.
[R] CPU FAN Connector
The CPU FAN connector allows you attach your CPU card fan here.
[S] ATX Power Supply Connector
Based on the ATX specification, one 20-pin power connector covers all the required power sources,
±
5V,
±
12V and
±
3.3V, with soft-touch button power on/off features. This connector reduces the
installation time and minimizes the chance of defects caused by incorrect connection