Intel Xeon 7130N LF80550KF0878M Data Sheet
Product codes
LF80550KF0878M
Electrical Specifications
18
Dual-Core Intel
®
Xeon
®
Processor 7000 Series Datasheet
processor. A minimum V
CC
and changes with frequency. This
allows processors running at a higher frequency to have a relaxed minimum V
CC
voltage
specification. The specifications have been set such that one voltage regulator can work with all
supported frequencies.
supported frequencies.
Individual processor VID values may be calibrated during manufacturing such that two devices at
the same core speed may have different default VID settings. Furthermore, any Dual-Core
Intel Xeon processor 7000 series, even those on the same processor FSB, can drive different VID
settings during normal operation.
the same core speed may have different default VID settings. Furthermore, any Dual-Core
Intel Xeon processor 7000 series, even those on the same processor FSB, can drive different VID
settings during normal operation.
The Dual-Core Intel Xeon processor 7000 series uses six voltage identification pins (VID[5:0]) to
support automatic selection of power supply voltages.
support automatic selection of power supply voltages.
specifies the voltage level
corresponding to the state of VID[5:0]. A ‘1’ in this table refers to a high voltage level and a ‘0’
refers to a low voltage level. If the processor socket is empty (i.e. when the voltage regulator sees
VID[5:0] = 111111 or VID[5:0] = 011111), or the voltage regulation circuit cannot supply the
voltage that is requested, the processor’s voltage regulator must disable itself. See the Vcc Voltage
Regulator Module (VRM) and Enterprise Voltage Regulator-Down (EVRD) 10.2 Design
Guidelines for more details.
refers to a low voltage level. If the processor socket is empty (i.e. when the voltage regulator sees
VID[5:0] = 111111 or VID[5:0] = 011111), or the voltage regulation circuit cannot supply the
voltage that is requested, the processor’s voltage regulator must disable itself. See the Vcc Voltage
Regulator Module (VRM) and Enterprise Voltage Regulator-Down (EVRD) 10.2 Design
Guidelines for more details.
The Dual-Core Intel Xeon processor 7000 series provides the ability to operate while transitioning
to an adjacent VID and its associated processor core voltage (V
to an adjacent VID and its associated processor core voltage (V
CC
). This will represent a DC shift
in the load line. It should be noted that a low-to-high or high-to-low voltage state change may result
in as many VID transitions as necessary to reach the target core voltage. Transitions above the
specified VID are not permitted.
in as many VID transitions as necessary to reach the target core voltage. Transitions above the
specified VID are not permitted.
includes VID step sizes and DC shift ranges.
The VRM or VRD utilized must be capable of regulating its output to the value defined by the new
VID. DC specifications for VID transitions are included in
VID. DC specifications for VID transitions are included in
. Please refer to
the Vcc Voltage Regulator Module (VRM) and Enterprise Voltage Regulator-Down (EVRD) 10.2
Design Guidelines for more details.
Design Guidelines for more details.
Power source characteristics must be guaranteed to be stable whenever the supply to the voltage
regulator is stable.
regulator is stable.
Further details and specifications will be included in future revisions of this document.