Dell M620 I/O Module Mezzanine Cards

NOTE: The memory module socket has an alignment key that allows you to install the memory module in the

socket in only one way.

7. Press down on the memory module with your thumbs to lock the memory module into the socket.

When the memory module is properly seated in the socket, the ejectors on the memory module socket align with

the ejectors on the other sockets that have memory modules installed.

8. Repeat step 5 through step 7 of this procedure to install the remaining memory modules.

9. Install the cooling shroud.

10. Close the blade.

11. Install the blade in the enclosure.

12. (Optional) Press <F2> to enter the System Setup, and check the System Memory setting.

The system should have already changed the value to reflect the newly installed memory.

13. If the value is incorrect, one or more of the memory modules may not be installed properly. Check to ensure that the

memory modules are firmly seated in their sockets.

14. Run the system memory test in the system diagnostics.

I/O Module Mezzanine Cards

The blade supports a variety of optional mezzanine cards. If installed, the mezzanine card(s) must be used in conjunction

with a matching I/O module(s).

For more information on I/O modules, see "Guidelines for Installing I/O Modules" in the

at support.dell.com/manuals.

The blade supports two mezzanine cards:

• Mezzanine card slot C supports Fabric C. This card must match the fabric type of I/O modules installed in I/O module

bays C1 and C2.

• Mezzanine card slot B supports Fabric B. This card must match the fabric type of I/O modules installed in I/O module

bays B1 and B2.

The blade supports SFF mezzanine cards. x8 PCIe Gen 3 cards are supported.

CAUTION: Many repairs may only be done by a certified service technician. You should only perform

troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or

telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your

warranty. Read and follow the safety instructions that came with the product.

1. Remove the blade from the enclosure.

2. Open the blade.

3. Open the mezzanine card latch by pressing the ridged area on the latch with your thumb, and lifting the end of the

latch.

NOTE: Hold the mezzanine card by its edges only.

4. Lift the mezzanine card up and away from the system board.

5. Close the retention latch.

6. Close the blade.