Intel Xeon E7430 AD80583QH046003 Data Sheet
Product codes
AD80583QH046003
Intel® Xeon® Processor 7400 Series Datasheet
101
Thermal Specifications
of processor activity and does not generate any bus cycles. If THERMTRIP# is asserted,
processor core voltage (V
processor core voltage (V
CC
) must be removed within the time frame defined in
. Intel also recommends the removal of V
TT
.
6.3
Platform Environment Control Interface (PECI)
6.3.1
Introduction
PECI offers an interface for thermal monitoring of Intel processor and chipset
components. It uses a single wire, thus alleviating routing congestion issues.
components. It uses a single wire, thus alleviating routing congestion issues.
shows an example of the PECI topology in a system with Intel® Xeon®
Processor 7400 Series. PECI uses CRC checking on the host side to ensure reliable
transfers between the host and client devices. Also, data transfer speeds across the
PECI interface are negotiable within a wide range (2 Kbps to 2 Mbps). The PECI
interface on Intel® Xeon® Processor 7400 Series is disabled by default and must be
enabled through BIOS.
transfers between the host and client devices. Also, data transfer speeds across the
PECI interface are negotiable within a wide range (2 Kbps to 2 Mbps). The PECI
interface on Intel® Xeon® Processor 7400 Series is disabled by default and must be
enabled through BIOS.
Note:
1.
Note: The power-on configuration (POC) settings of third party chipsets may produce different PECI
. Thermal designers should consult their third party chipset
designers for the configured PECI addresses.
Figure 6-8. PECI Topology
PECI Host
Controller
Domain0
0
x
3
0
x
3
0
Domain1
0
x
3
0
x
3
0
Domain0
0
x
3
2
x
3
2
Domain1
0
x
3
2
x
3
2
Socket 0
Cluster ID[1:0] = 0
Socket 1
Cluster ID[1:0] = 1
C28
C28
Domain0
0
x
3
1
x
3
1
Domain1
0
x
3
1
x
3
1
Socket 2
Cluster ID[1:0] = 2
Domain0
0
x
3
3
x
3
3
Domain1
0
x
3
3
x
3
3
Socket 3
Cluster ID[1:0] = 3
C28
C28