Cooling System - Supermicro AS-4020A-8R User Manual

Cooling System

The The SC743S1-R760 chassis has an innovative cooling design that includes
four 8-cm hot-plug system cooling fans located in the middle section of the chas-
sis and two 8-cm hot-plug rear exhaust fans. Each power supply module also
includes a cooling fan. An air shroud, which directs the airfl ow to the areas of
highest heat build-up, is also included. All chassis and power supply fans operate
continuously.
A setting in BIOS (see p. 7-18) is used to control the system fan speed. This setting
uses voltage control to allow fans to run at different speeds. [The recommended
setting is "4-pin (Server)".]
Figure 1-1. AMD 8131/8111
Note: This is a general block diagram. See Chapter 5 for details.
184-pin DIMMs
AMD
TM
Opteron
Processor (2)
144-bit, 200 -400 MT/s
133/100 MHz PCI-X Slots
System Block Diagram
16 x 16 Hyper Transport (2000 MT/s)
AMD
Opteron
Processor (1)
16 x 16 Hyper Transport (1200 MT/s)
AMD-8131
8 x 8 ncHyper Transport (400 MT/s)
33 MHz PCI Slots
AMD-8111
ATI
Rage XL
8 MB
LPC Link
Parallel Port
Winbond
W83627 HF
Super I /O
Serial Ports
1-5
Chapter 1: Introduction
TM
Chipset:
184 -pin DIMMs
144-bit, 200-400 MT/s
TM
Adaptec
100/66 MHz PCI-X Slots
AIC-7902W
Broadcom
BC5704C
ATA133
USB 1.1
BIOS
Floppy Disk Drive
PS /2 Kybd/Mouse