HP ProBook 4430s, 4431s, 4330s and 4331s Notebook PCs - Maintenance and Service Guide

Processor
NOTE: All processor spare part kits include replacement thermal material.
Description Spare part number
Intel Core i7 processor, Dual Core
2620M, 2.7-GHz (turbo up to 3.4-GHz) processor with 4-MB L3 cache 631252-001
Intel Core i5 processors, Dual Core
2540M, 2.6-GHz (turbo up to 3.3-GHz) processor with 3-MB L3 cache (includes thermal grease) 631255-001
2520M, 2.5-GHz (turbo up to 3.2-GHz) processor with 3-MB L3 cache (includes thermal grease) 631253-001
2430M, 2.4-GHz (turbo up to 3.0-GHz) processor with 3-MB L3 cache 653341-001
2410M, 2.3-GHz (turbo up to 2.9-GHz) processor with 3-MB L3 cache 638039-001
Intel Core i3 processors, Dual Core
2350M, 2.3-GHz processor with 3-MB L3 cache (includes thermal grease) 653340-001
2330M, 2.2-GHz processor with 3-MB L3 cache (includes thermal grease) 653339-001
2310M, 2.1-GHz processor with 3-MB L3 cache (includes thermal grease) 638037-001
Intel Pentium processors, Dual-Core
B950, 2.1-GHz processor with 2-MB L3 cache 653338-001
B940, 2.0-GHz processor with 2-MB L3 cache 653337-001
Intel Celeron processor, Dual Core
B840, 1.9-GHz processor with 2-MB L3 cache 664663-001
B810, 1.6-GHz processor with 2-MB L3 cache 646760-001
Before removing the processor, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn
the computer on, and then shut it down through the operating system.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet,
and then unplugging the AC adapter from the computer.
4. Remove the battery (see
Battery on page 48).
5. Remove the bottom door (see
Bottom door on page 50).
6. Remove the fan (see
Fan on page 67).
7. Remove the heat sink (see
Heat sink on page 69).
Component replacement procedures 71