Datasheet

Signal Name Description
• 0 = Hardware correctable error (no operating system or firmware action
necessary)
• 1 = Non-fatal error (operating system or firmware action required to
contain and recover)
• 2 = Fatal error (system reset likely required to recover)
MEM_HOT_C01_N
MEM_HOT_C23_N
Memory throttle control. Signals external BMC-less controller that DIMM is
exceeding temperature limit and needs to increase to max fan speed.
MEM_HOT_C01_N and MEM_HOT_C23_N signals have two modes of
operation - input and output mode.
Input mode is externally asserted and is used to detect external events
such as VR_HOT# from the memory voltage regulator and causes the
processor to throttle the appropriate memory channels.
Output mode is asserted by the processor known as level mode. In level
mode, the output indicates that a particular branch of memory subsystem
is hot.
MEM_HOT_C01_N is used for memory channels 0 & 1 while
MEM_HOT_C23_N is used for memory channels 2 & 3.
MSMI_N Machine Check Exception (MCE) is signaled via this pin when eMCA2 is
enabled.
PMSYNC Power Management Sync. A sideband signal to communicate power
management status from the Platform Controller Hub (PCH) to the
processor.
PROCHOT_N PROCHOT_N will go active when the processor temperature monitoring
sensor detects that the processor has reached its maximum safe operating
temperature. This indicates that the processor Thermal Control Circuit has
been activated, if enabled. This signal can also be driven to the processor
to activate the Thermal Control Circuit. This signal is sampled after
PWRGOOD assertion.
If PROCHOT_N is asserted at the deassertion of RESET_N, the processor
will tristate its outputs.
continued...
Intel
®
Xeon
®
Processor E5-1600 and E5-2600 v3 Product Families—Intel
®
Xeon
®
Processor
E5-1600 and E5-2600 v3 Product Families Signal Descriptions
Intel
®
Xeon
®
Processor E5-1600 and E5-2600 v3 Product Families, Volume 1 of 2, Electrical
Datasheet September 2014
54 Order No.: 330783-001