S2600GZ and S2600GL

Platform Management Functional Overview Intel® Server Board S2600GZ/GL TPS
 Static Closed Loop Thermal Throttling (Static-CLTT): CLTT control registers are configured by BIOS
MRC during POST. The memory throttling is run as a closed-loop system with the DIMM temperature
sensors as the control input. Otherwise, the system does not change any of the throttling control registers
in the embedded memory controller during runtime.
 Dynamic Closed Loop Thermal Throttling (Dynamic-CLTT): CLTT control registers are configured by
BIOS MRC during POST. The memory throttling is run as a closed-loop system with the DIMM
temperature sensors as the control input. Adjustments are made to the throttling during runtime based on
changes in system cooling (fan speed).
Both Static and Dynamic CLTT modes implement a Hybrid Closed Loop Thermal Throttling mechanism
whereby the Integrated Memory Controller estimates the DRAM temperature in between actual reads of the
memory thermal sensors.
6.10
Messaging Interfaces
The BMC supports the following communications interfaces:
 Host SMS interface by means of low pin count (LPC)/keyboard controller style (KCS) interface
 Host SMM interface by means of low pin count (LPC)/keyboard controller style (KCS) interface
 Intelligent Platform Management Bus (IPMB) I2C interface
 LAN interface using the IPMI-over-LAN protocols
Every messaging interface is assigned an IPMI channel ID by IPMI 2.0. The following tables shows the
standard channel assignments.
Table 23. Mesaaging Interfaces
Channel ID
Interface
Supports
Sessions
0
Primary IPMB
No
1
LAN 1
Yes
2
LAN 2
Yes
3
LAN3
1
(Provided by the Intel
®
Dedicated Server Management NIC)
Yes
4
Reserved
Yes
5
USB
No
6
Secondary IPMB
No
7
SMM
No
8– 0Dh
Reserved
–
0Eh
Self
2
–
0Fh
SMS/Receive Message Queue
No
Notes:
1. Optional hardware supported by the server system.
2. Refers to the actual channel used to send the request.
6.10.1
User Model
The BMC supports the IPMI 2.0 user model. 15 user IDs are supported. These 15 users can be assigned to
any channel. The following restrictions are placed on user-related operations:
1. User names for User IDs 1 and 2 cannot be changed. These are always “” (Null/blank) and “root”
respectively.
2. User 2 (“root”) always has the administrator privilege level.
3. All user passwords (including passwords for 1 and 2) may be modified.
User IDs 3-15 may be used freely, with the condition that user names are unique. Therefore, no other users
can be named “” (Null), “root,” or any other existing user name.
Revision 2.4
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