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Replacing a hot-swap fan assembly

Use this information for an overview of the fans and instructions on how to install a hot-swap fan in the server.

The server supports up to 10 fan packs with dual-motor, counter-rotating, speed-controlled hot-swap cooling fans (two fans in each fan-pack for a total of 20 fans).

Note
  • The fan-packs on the compute books and the Standard I/O book are not interchangeable. The fan packs have text printed on the front of the fan above the fan handle that indicates which book the fan-pack should be installed in. For example, the fan-pack for a compute books might have the text Top - Compute Book Only. The fan-pack for a Standard I/O book might have the text Top - Standard I/O Book Only.
  • Fan-packs 1 through 8 are on the compute books (two fans per fan-pack). The server supports up to four compute books.
  • Fan-packs 9 and 10 are on the Standard I/O book.

The following table shows the fan zones, fan-pack number, and the components that are cooled by the fans.

Table 1. Fan zones, fan number, and the components cooled by the fans.

Three-column table that lists the fan zones, the fan-packs in each fan zone, and the components cooled by the fan-packs

Fan zoneFan-pack numberComponents cooled by the fans
19 and 10
  • Hard disk drives
21 and 2
  • Compute book 1
  • DIMMs connected to compute book 1
  • Voltage regulator for compute book 1
  • The ML2 (Ethernet) adapters (PCIe slot 10)
  • PCIe slot 9
33 and 4
  • Compute book 2
  • DIMMs connected to compute book 2
  • Voltage regulator for compute book 2
  • PCIe slots 7 and 8
45 and 6
  • Compute book 3
  • DIMMs connected to compute book 3
  • Voltage regular for compute book 3
  • PCIe slots 4, 5, and 6
57 and 8
  • Compute book 4
  • DIMMs connected to compute book 4
  • Voltage regular for compute book 4
  • PCIe slots 1, 2, and 3
Note
To ensure proper operation, replace a failed hot-swap fan within 30 seconds.
To install or replace a hot-swap fan pack, complete the following steps:
Note
These procedures for replacing a hot-swap fan assembly apply to both the standard I/O book and the compute books.
  1. Make sure that you are installing the appropriate fan-pack for the I/O book.
    Note
    The fan packs have text printed on the front of the fan above the fan handle that indicates which book the fan-pack should be installed in. For example, the fan-pack for a compute books might have the text Top - Compute Book Only. The fan-pack for a standard I/O book might have the text Top - Standard I/O Book Only. The fan packs are not interchangeable.
  2. Touch the static-protective package that contains the new fan to any unpainted metal surface on the server. Then, remove the new fan from the package.
  3. Align the fan with the fan bay and slide it in the bay until it is seated firmly. Rotate the fan handle up to secure the fan in the slot.

    Illustration of replacing a hot-swap fan assembly