Celeron II 633

Table 6-98: Celeron II 633 Specifications
Processor Family	Model Name	Intel Celeron II

	Performance Rating	633 MHz
	Front-side Bus Speed	66 MHz
	Multiplier Ratio	9.5×
Physical Design	Interface Packing	370-Pin FCPGA Socket
	Core Voltage	1.5 volts
	Power Consumption	13 watts
	Maximum Power	20.2 watts

Table 6-99: Celeron II 633 Overclocking
Celeron II	Model Rating	633 MHz

Overclocking Potential	Multiplier Lock Support	Locked Multiplier
	Typical Multiplier O/C	N/A
	Typical Front-side Bus O/C	83 – 100 MHz
	Typical O/C Potential	789 – 950 MHz
	Maximum O/C Potential	~ 950 MHz
Overclocking Tolerances	Recommended Cooling Type	Forced-Air Heatsink
	Recommended Heatsink Coolers	Swiftech MCX370
		Alpha PAL8045
	Recommended Peltier Active Cooler	MCX370 Peltier
	Maximum Core Voltage	1.85 volts with Heatsink Cooler
	Maximum I/O Voltage	3.5 volts with Chipset Cooler
	Maximum Core Temperature	82° Celsius

Strategy

The Celeron II 633-MHz processor carries the same faults as its 600-MHz sibling. While a small percentage of these units can successfully operate at 100 MHz, many users are forced into operating at 789 MHz due to the 83 MHz front-side bus limitation. Also note the lower thermal threshold for this chip: Intel decreased the maximum core temperature fail rate to 82° Celsius, compared to 90° Celsius for the earlier Celeron II models. Overclocking the 633 will require improved cooling to achieve significant returns.