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4–40 Maintenance and Service Guide
Removal and replacement procedures
Processor
✎
The processor spare part kit includes replacement thermal material.
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 4-7).
5. Remove the following components:
a. Keyboard and switch cover (see “Keyboard and switch cover” on page 4-22)
b. Fan and heat sink (see “Fan and heat sink” on page 4-35)
Description Spare part number
Intel® Core™ i5 dual-core processors (3-MB L3 cache, 4 threads, 35W):
■ i5-520M, 2.4-GHz processor (Turbo up to 2.93 GHz) 594187-001
■ i5-540M, 2.53-GHz processor (Turbo up to 3.06 GHz) 594188-001
Intel® Core™ i7 quad-core, processor (6-MB L3 cache, 8 threads, 45W):
■ i7-620M, 2.66-GHz processor (Turbo up to 3.33GHz) 587259-001
Intel® Core™ i7 quad-core, processors:
■ i7-720QM, 1.6-GHz processor (Turbo up to 2.8 GHz, 6-MB L3 cache, 8 threads, 45W) 586170-001
■ i7-820QM, 1.73-GHz processor (Turbo up to 3.06 GHz, 8-MB L3 cache, 8 threads, 45W) 583053-001