Supermicro 7034A-T, User Manual

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1-4
S
UPER
W
ORKSTATION 7034A-T/7034A-i Manual
Figure 1-1. Intel E7525 Chipset:
System Block Diagram
Note: This is a general block diagram. Please see Chapter 5 for details.
MCH
NOCONA PROCESSOR#2 VRM CLOCK
ADDR CT
RL
DA
TA
NOCONA PROCESSOR#1
ADDR CT
RL
DA
TA
DA
TA
ADDR CT
RL
I CH5R
HUB
DDRI I - 400
A
PXH
B
PCI EXP. A
1 PCI - X
SL OT 3
1 PCI - X
PCI - X BUS( 100 MHZ)
Gbi t L AN
SL OT 2
J 13
PCI - X BUS( 100 MHZ)
J 14
1 PCI - EXP
SL OT 4
J 17
PCI EXP. B, C ( X16)
J 15
1 PCI - EXP
SL OT 6
DI MMs
I DE
PRI / SEC
UDMA/ 100
X8 X4
X4
DI MMs
0, 1
SATA SATA
LPC BUS USB USB PORT
0, 1, 2, 3,
BMC CON. FWH L PC I / O
PARAL L EL
PORT
MS.
FDD. SER. 1
SER. 2
KB.
4 DDR I I - 400
4 DDR I I - 400
DDRI I - 400
SCSI
7902
PCI BUS( 32- BI T) PCI 32 BI T
SL OT 5
AC 97
J 19
1 PCI - X
SL OT 1
J 12
H/ W
MONI TOR
5, 6, 7, 8
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. To remedy this,
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.