http://www.TYAN.com
4
Chapter 1: Introduction
Congratulations
You have purchased one of the most powerful AMD OpteronTM processor solutions, the
QUAD CPU Cards M4881. It is the expansion board of Tyan Thunder K8QW S4881. You
may upgrade four-way S4881 to eight-level processing platform through use of HT4881
and M4881 add-on modules.
Remember to visit TYAN’s Website at http://www.TYAN.com. There you can find
information on all of TYAN’s products with FAQs, online manuals and BIOS upgrades.
Hardware Specifications
Processor
-Quad µPGA 940-pin ZIF sockets
-Supports four Single/Dual Core AMD
OpteronTM 800 series processors
-Four onboard 4-phase VRMs
-Integrated 128-bit DDR Memory
controller
Memory
-128-bit dual channel memory bus
-Sixteen 184-pin DDR DIMM sockets
(Four per CPU)
-Supports up to 64 GB Reg/ECC DDR
-Supports DDR266, DDR333, or
DDR400
-Supports Single/Dual and Quad Rank
memory
HT 4881 card
-Used to connect M4881 to S4881
System management
-One Analog Devices ADT7476
Hardware Monitoring IC and one
Analog Devices ADT7463 Hardware
Monitoring IC
-Temperature and voltage monitoring
-Four (4) 4-pin CPU fan header with
tachometer monitoring and smart FAN
control
-Two (2) 3-pin system fan header with
tachometer monitoring
Hyper Transport™ Connectors
-Two PCI Express x16 slots with
TYAN private signal definition
which uses the Hyper Transport
to connect two HT cards to the
S4881. (CPU Board specifically
designed by TYAN).
Form Factor
-12”x13” dimension with special
architecture
-EPS12V power connectors
24pin+8pin+8pin+2X2pin(ATX
12V)+1X4pin(5V)
Regulatory
-FCC Class B (Declaration of
Conformity)
-European Community CE
*Not validated at the time of print, subject
to change.
