ECS L4S5A SiS 645 socket 478
Thursday, February 28, 2002
Next: Test setup
L4S5A
 SiS645
& SiS961 Chipset
Socket
478 for Pentium 4 processors
Three
184-pin DDR DIMMs with DDR SDRAM support, up
to 2GB
LAN: RealTek 8100/B (Optional)
AC97 Audio Codec on board
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L4S5A mainboard is an ATX mainboard
that uses a 4-layer printed circuit board and measures 305 mm x 220 mm.
The mainboard features a mPGA Socket 478 that accommo-dates Pentium®
4 processors supporting frontside bus (FSB) speeds
up to 400MHz. The L4S5A incorporates the SiS®645
chipset which combines support for the new high-bandwidth Double
Data Rate (DDR) SDRAM, and the AC 97 audio codec.
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PROCESSORS Detail
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One Socket
478 supports the
 Intel®
Pentium® 4 processor (478pins) |
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CHIPSET
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SiS645
& SiS®961 Chipset
SiS®645
Host/Memory controller with DDR333 and AGP4X North Bridge Single Chipset
SiS®961
MuTIOL Media I/O
LPC I/O - IT8705F
System Hardware Monitor:
Built-in IT8705F
LAN: RealTek 8100/B (pptional)
AC97 Audio Codec
Compliant
with AC97 2.1 specification |
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MEMORY
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Three 184-pin DDR
DIMM sockets to support
Three
2.5V DDR SDRAM (DDR266/DDR200) or
Two
2.5V DDR SDRAM (DDR333)
Maximum: 3GB (2GB only
for DDR333)
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SYSTEM BIOS
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Award 2MB
Flash EEPROM
Supports Plug and Play
1.0A, AMP 1.2, Multi Boot, DMI
Full Support for ACPI
revision 1.0 specification |
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I/O INTERFACE
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Supports
Plug and Play function
PS/2 keyboard and PS/2
mouse connectors
Dual USB Ports and an
optional LAN connector
One - EPP/ECP mode parallel
port
One - 16550 high-speed
serial I/O ports
Audio Ports (Line-in,
Line-out, Mic-in, CD-in and game port)
Dual PCI IDE interfaces
- support four IDE devices (PIO mode 4, DMA Mode 2, Ultra DMA 66/100)
Supports 360K~2.88M Byte,
3 Mode FDDs or LS120
ATX12V Power Supply
Connectors
ports, Headers and Others:
IrDA header (STR)
Front Panel MIC/Line-out
header
COM2 header
Four Extra USB header (LUSB1/USB3
or LUSB2/USB2)
Smart Card Reader Header
HDD LED, Reset Switch,
Power Switch headers
CPU, BAK and CHS Fan headers
LAN Card Wake Up / Modem
Ring Wake-Up Headers |
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RTC & BATTERY
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SiS®961
built-in 256 bytes of CMOS SRAM
With CMOS SRAM hardware
clear jumper |
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EXPANSION SLOTS
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6 PCI slots, 1 AGP
slot, 1 CNR slot
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FORM FACTOR
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| ATX (305mm*244mm),
4 Layers |
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