Intel BX80635E52697V2 Manual Do Utilizador

Intel® Xeon® Processor E5-1600 v2/E5-2600 v2 Product Families

139

Datasheet Volume One of Two

 

Intel supports and validates two and four processor configurations only in which all 

processors operate with the same Intel® QuickPath Interconnect frequency, core 

frequency, power segment, and have the same internal cache sizes. Mixing  

components operating at different internal clock frequencies is not supported and  

will not be validated by Intel. Combining processors from different power segments  

is also not supported.

Processors within a system must operate at the same frequency per bits [15:8] of the 

FLEX_RATIO MSR (Address: 194h); however this does not apply to frequency 

transitions initiated due to thermal events, Extended HALT, Enhanced Intel SpeedStep 

Technology transitions signal. Please refer to the Intel® Xeon® Processor E5 v2 

 for details on the 

FLEX_RATIO MSR and setting the processor core frequency.

Not all operating systems can support dual processors with mixed frequencies. Mixing 

processors of different steppings but the same model (as per CPUID instruction) is 
supported provided there is no more than one stepping delta between the processors, 

for example, S and S+1.

S and S+1 is defined as mixing of two CPU steppings in the same platform where one 
CPU is S (stepping) = CPUID.(EAX=01h):EAX[3:0], and the other is S+1 = 

CPUID.(EAX=01h):EAX[3:0]+1. The stepping ID is found in EAX[3:0] after executing 

the CPUID instruction with Function 01h.

Details regarding the CPUID instruction are provided in the AP-485, Intel® Processor 
Identification and the CPUID Instruction

 application note, also refer to the Intel® 

.

Intel QPI

QPI0_CLKTX_DN[1:0]
QPI0_CLKTX_DP[1:0]
QPI0_DTX_DN[19:00]
QPI0_DTX_DP[19:00]
QPI1_CLKTX_DN[1:0]
QPI1_CLKTX_DP[1:0] 
QPI1_DTX_DN[19:00]
QPI1_DTX_DP[19:00]

SMBus 

DDR_SCL_C01
DDR_SDA_C01
DDR_SCL_C23
DDR_SDA_C23
PEHPSCL
PEHPSDA

Processor Sideband 

CAT_ERR_N 
ERROR_N[2:0]
BPM_N[7:0] 
PRDY_N
THERMTRIP_N 
PROCHOT_N
PECI

SVID

SVIDCLK