HP ProBook 4540s HP ProBook 4540s Notebook PC HP ProBook 4440s Notebook PC HP - Page 74
Processor, Bottom door see - core i3
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Processor NOTE: All processor spare part kits include replacement thermal material. Description Intel Core i7 processor, Quad Core: 3612QM, 2.1-GHz processor with 6-MB L3 cache Intel Core i5 processors, Dual Core: 3360M, 2.8-GHz processor with 3-MB L3 cache (includes thermal grease) 3320M, 2.6-GHz processor with 3-MB L3 cache (includes thermal grease) 2450M, 2.5-GHz processor with 3-MB L3 cache (includes thermal grease) Intel Core i3 processors, Dual Core: 3110M, 2.3-GHz processor with 3-MB L3 cache (includes thermal grease) 2370M, 2.4-GHz processor with 3-MB L3 cache (includes thermal grease) 2350M, 2.3-GHz processor with 3-MB L3 cache (includes thermal grease) Intel Pentium processor, Dual Core: B980, 2.4-GHz, with 2-MB L3 cache B970, 2.3-GHz, with 2-MB L3 cache Intel Celeron processor: B840, 1.9-GHz, with 2-MB L3 cache Spare part number 680647-001 681953-001 681952-001 676359-001 682417-001 677152-001 653340-001 692428-001 676785-001 664663-001 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 42). 5. Remove the following components: a. Bottom door (see Bottom door on page 44). b. Keyboard (see Keyboard on page 56) c. Heat shield (see Heat shield on page 59) d. Fan (see Fan on page 61) e. Heat sink (see Heat sink on page 63) 66 Chapter 4 Removal and replacement procedures