System Block Diagram - Supermicro 7034A-T User Manual

S W
UPER ORKSTATION 7034A-T/7034A-i Manual
Note: the 4-pin fan headers on the 7034A-T/7034A-i serverboard may present
some confusion to users who decide to add CPU heatsinks that have 3-pin fan
headers. Heatsinks with 3-pin fan headers may be connected to the serverboard,
but these fans will not be controlled by PWM and will constantly run at full speed,
which may generate too much noise for the workspace.
Supermicro suggests changing the "Auto Fan control" BIOS setting to "3-pin
Workstation", which will cause fan speed to be controlled by temperature
sensor/voltage levels and result in lower noise levels.
Note: This is a general block diagram. Please see Chapter 5 for details.
1 PCI - X
S L OT 1
J 12
1 PCI - X
S L OT 2
J 13
S CS I
PCI - X BUS ( 100 M HZ)
7902
PCI - X BUS ( 100 M HZ)
1 PCI - X
S L OT 3
J 14
Gbi t L AN 1 PCI - E XP
Figure 1-1. Intel E7525 Chipset:

System Block Diagram

VRM
A
PXH X4
B
1 PCI - E XP
X4
S L OT 4
J 17
S L OT 6 PCI E XP. B, C ( X16)
J 15
I DE
PRI / S E C
S AT A
0, 1
US B PORT
0, 1, 2, 3,
5, 6, 7, 8
NOCONA PROCE S SOR#1
NOCONA PROCE S SOR#2
PCI E XP. A X8
M CH
UDM A/ 100
HUB
S AT A
I CH5R
US B
H/ W
L PC I / O
M ONI T OR
KB. F DD.
M S .
1-4
To remedy this,
CL OCK
4 DDR I I - 400
DDRI I - 400
DI M M s
DDRI I - 400
4 DDR I I - 400
DI M M s
PCI BUS ( 32- BI T ) PCI 32 BI T
S L OT 5
J 19
AC 97
L PC BUS
BM C CON. F W H
S E R. 1
PARAL L EL
S E R. 2
PORT