Installing A Sas/Sata 4 Pac Hdd Option - Lenovo System x3550 M4 Installation And Service Manual

Step 3. Use the cleaning pad to wipe the thermal grease from the bottom of the heat sink.
Note: Make sure that all of the thermal grease is removed.
Step 4. Use a clean area of the cleaning pad to wipe the thermal grease from the microprocessor; then,
dispose of the cleaning pad after all of the thermal grease is removed.
Step 5. Use the thermal-grease syringe to place 9 uniformly spaced dots of 0.02 ml each on the top of the
microprocessor. The outermost dots must be within approximately 5 mm of the edge of the
microprocessor; this is to ensure uniform distribution of the grease.
Figure 74. Thermal grease distribution
Note: If the grease is properly applied, approximately half of the grease will remain in the syringe.
Figure 75. Syringe
Step 6. Install the heat sink onto the microprocessor.

Installing a SAS/SATA 4 Pac HDD option

You can install an Lenovo System x3550 M4 Hot-swap SAS/SATA 4 Pac HDD option to add four additional
2.5-inch hot-swap hard disk drives in the server.
See http://www.lenovo.com/ serverproven/
Pac HDD option, contact your sales representative or reseller.
The SAS/SATA 4 Pac HDD option kit contains the following components:
• One 2.5-inch hot-swap hard disk drive backplane (with bracket)
• Four drive bay filler panels
• One SAS signal cable
Note: The 4 pac HDD option including structural parts and Tier 1 parts.
To install a SAS/SATA 4 Pac HDD option, complete the following steps:
Step 1. Read the safety information that begins on "Safety" on page v and "Installation guidelines" on page
31.
0.02 mL of thermal
Microprocessor
for a list of supported optional devices. To order a SAS/SATA 4
grease
.
Chapter 2 Installing optional devices
83