Техническая Спецификация для Intel Xeon Wolfdale E3210 P4X-UPE3210-316-6M1333

Datasheet

285

The I/O buffer supply voltage is measured at the MCH package pins. The tolerances 

shown in 

 are inclusive of all noise from DC up to 20 MHz. In the lab, the 

voltage rails should be measured with a bandwidth limited oscilloscope with a roll off of 

3 dB/decade above 20 MHz under all operating conditions.

 indicates which supplies are connected directly to a voltage regulator or to a 

filtered voltage rail. For voltages that are connected to a filter, they should me 

measured at the input of the filter.

If the recommended platform decoupling guidelines cannot be met, the system 

designer will have to make tradeoffs between the voltage regulator output DC tolerance 

and the decoupling performance of the capacitor network to stay within the voltage 

tolerances listed in 

.

NOTES:
1.

These rails are filtered from other voltage rails on the platform and should be measured at 
the input of the filter. 

2.

MCH supports both V

TT

 =1.2 V nominal and V

TT

 =1.1 V nominal depending on the 

identified processor. 

VCC_DDR

DDR2 I/O Supply Voltage

1.7

1.8

1.9

V

VCC_CKDDR

DDR2 Clock Supply Voltage

1.7

1.8

1.9

V

1

VCC_EXP

PCI-Express* Supply Voltage

1.188

1.25

1.313

V

VCCA_EXP

PCI-Express* Analog Supply 
Voltage

3.135

3.3

3.465

V

1

VTT_FSB

1.2 V System Bus Input Supply 
Voltage 

1.14

1.2

1.26

V

2

1.1 V System Bus Input Supply 
Voltage

1.045

1.1

1.155

V

VCC

MCH Core Supply Voltage

1.188

1.25

1.313

V

VCC_CL

Controller Supply Voltage

1.188

1.25

1.313

V

VCC3_3

CMOS Supply Voltage

3.135

3.3

3.465

V

VCCA_HPLL, 

VCCAPLL_EXP, 

VCCA_MPLL

Various PLL Analog Supply 
Voltages

1.188

1.25

1.313

V

1