Processors
Mobile Intel® Pentium® 4 Processors - M
Voltage requirements

Mobile Intel® Pentium® 4 Processors are specified to operate at the voltages provided in the Tables below. Mobile Intel Pentium 4 Processors with Enhanced Intel SpeedStep® technology have two voltages, one for each performance mode. Future Mobile Intel Pentium 4 Processors may have other voltage requirements. It is important to verify that the laptop explicitly supports the specific processor (by type, stepping and speed).

Table 1. Voltage Requirements for Mobile Intel® Pentium® 4 Processors.

90nm processors

Maximum Performance Battery Optimized Mode

Processor Number

Processor Frequency Voltage Power Consumption Optimized Speed Voltage Power Consumption

548

3.33 GHz 1.25-1.40V 88W 1.86 GHz 1.15V NA

538

3.20 GHz 1.25-1.40V 88W 1.86 GHz 1.15V NA

532

3.06 GHz 1.25-1.40V 88W 1.86 GHz 1.15V NA

518

2.80 GHz 1.25-1.40V 88W 1.86 GHz 1.15V NA

.13 micron processors

Maximum PerformanceBattery Optimized Mode
Processor FrequencyVoltagePower ConsumptionOptimized SpeedVoltagePower Consumption
3.20 GHz1.550V76W1.60 GHz1.2VNA
3.06 GHz525V70W1.60 GHz1.2VNA
2.80 GHz1.525V68.4W1.60 GHz1.2VNA
2.66 GHz1.525V66.1W1.60 GHz1.2VNA
2.40 GHz1.525V59.8W1.60 GHz1.2VNA


Table 2. Voltage Requirements for Mobile Intel Pentium 4 Processors - M
Maximum PerformanceBattery Optimized Mode
Processor FrequencyVoltagePower ConsumptionOptimized SpeedVoltagePower Consumption
2.60 GHz1.3V35W1.20 GHz1.2V20.8W
2.50 GHz1.3V35W1.20 GHz1.2V20.8W
2.40 GHz1.3V35W1.20 GHz1.2V20.8W
2.20 GHz1.3V35W1.20 GHz1.2V20.8W
2.0 GHz1.3V32W1.20 GHz1.2V20.8W
1.90 GHz1.3V32W1.20 GHz1.2V20.8W
1.80 GHz1.3V30W1.20 GHz1.2V20.8W
1.70 GHz1.3V24.5W1.20 GHz1.2V20.8W
1.60 GHz1.3V30W1.20 GHz1.2V20.8W
1.50 GHz1.3V26.9W1.20 GHz1.2V20.8W
1.40 GHz1.3V25.8W1.20 GHz1.2V20.8W


Proper voltage must be supplied for reliable operation. Most laptops now use Voltage ID (VID) programmable voltage regulators to allow the processor to program the correct voltage during power-on. If your laptop does not use a VID programmable voltage regulator, it should come with jumpers or switches to set the correct voltage. Consult your laptop manual for instructions on setting the proper voltage. Since the operating voltage of Mobile Intel Pentium 4 Processors  may be changed as the processor goes through stepping changes, VID-programmable voltage regulators are the preferred solution.

This applies to:

Mobile Intel® Pentium® 4 Processors - M



Solution ID: CS-007501
Last Modified: 02-Dec-2011
Date Created: 08-Dec-2003
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