ECS 661FX-M Deluxe, Manual, Page: 7 / 42

2
Introducing the Motherboard
Feature
661FX-M Deluxe uses a 478-pin socket type of Pentium 4 that carries
the following features:
• Intel Pentium 4 Willamette: FSB 400, 512K L2 cache
• Intel Pentium 4 Northwood: FSB 400, 533, 512K L2 cache
• Intel Pentium 4 Northwood: FSB 533, 512K L2 cache, HT
supported
• Intel Pentium 4 Northwood: FSB 800, 512K L2 cache, HT
supported
• Intel Pentium 4 Celeron CPU
The SiS661FX Northbridge (NB) and SiS964/964L Southbridge (SB)
chipset is based on an innovative and scalable architecture with proven
reliability and performance.
•
Accommodates high throughput SiS MuTIOL
1G interconnecting to SiS964 MuTIOL 1G
media I/O with bi-directional 16-bit data bus to
perform 1GB/s bandwidth in 133 MHz x 4
mode
SiS661FX(NB)
•
Supports 12 outstanding transactions and out-
of-order completion
•
Accommodates high quality 3D accelerator that
Ultra-AGPII TM up to 2.7 GB/s bandwidth
•
Built-in CRT FIFOs to support ultra high
resolution graphics modes and reduce CPU
wait-state
•
Supports auto clock throttling for 2D engine, 3D
engine
SiS 964/964L
(SB)
•
Concurrent servicing of all DMA Devices: Dual
IDE Controllers, SATA controller (except for
SiS964L), three USB 2.0/1.1 host controller,
LAN MAC Controller and Audio/Modem DMA
Controller
•
Compliant with PCI 2.3 specificaiton
•
Compliant with Serial ATA 1.0 specification,
supports power saving mode (SiS964 only)
•
Compliant with AC’97 v2.3 supporting 6
Channels of audio outputs and V.90 HSP-
Modem
•
Integrated USB 2.0 Controller with three root
hubs and eight function ports
• Supports DDR400/333/266 MHz DDR SDRAM memory
module
• Accommodates two DDR 184-pin unbuffered DIMM slots
• Each slot supports up to 1GB with a total maximum capacity of
2GB
Processor
Processor
“Hyper-Threading” technology enables the operating system into think-
ing it’s hooked up to two processors, allowing two threads to be run in
parallel, both on separate “logical” processors within the same physical
processor.
Chipset
Chipset
Memory Memory