Toshiba TECRA R10 manual Installing the DC FAN, Applying new grease

4 Replacement Procedure 4.22 DC FAN

Installing the DC FAN

To install the DC FAN, follow the steps below and refer to Figure 4-30 to 4-33.

1. Secure the DC FAN to the FIN with the following screws.

• M2.5⋅4C FLAT HEAD screw ⋅2

2. Stick the INSU FIN UP on the DC FAN and FIN.

CAUTION: When the removed INSU FIN UP is deformed or broken. Use a new one.

3.Turn over the DC FAN assembly.

4.When silicon grease is already applied to the CPU or FIN, wipe them off with a cloth in advance.

5.Apply new GREASE (DENKA GFC-F1) on the CPU using a special syringe as shown in the following figure. Apply quarter of scale (0.25ml) of grease evenly on the CPU chip.

CAUTION: Apply the silicon grease to cover the chip surface using the special applicator to cover the chip surface. Use a spatula to spread new grease.

Syringe

Grease

CPU

Figure 4-33 Applying new grease

6.If there is already a COOL SHEET on the FIN, North Bridge chip, or external graphics chip, remove the COOL SHEET.

7.Stick a new COOL SHEET on the North Bridge chip and external graphics chip in place.

CAUTION: Do not reuse the removed cool sheet. Be sure to use a new COOL SHEET.

4-56 [CONFIDENTIAL] TECRA R10 Maintenance Manual (960-708)