IBM 86624RY Maintenance Manual - Page 247

Notes 1. The following illustrations might differ slightly from the hardware. 2. If you replace the microprocessor in the server with a microprocessor that operates at a different speed, be sure to set the microprocessor core frequency selection jumpers correctly. See "Processor board jumpers" on page 255 for more information. 3. The microprocessor that is installed in microprocessor connector J1 is CPU or microprocessor 1. If a microprocessor is installed in microprocessor connector J2, it is CPU or microprocessor 2; a microprocessor installed in J3 is CPU or microprocessor 3; a microprocessor installed in J4 is CPU or microprocessor 4. See Table 13 on page 240 for information on the order in which microprocessors and voltage regulator modules (VRMs) must be installed. If the server has only one microprocessor installed, that microprocessor is installed in microprocessor connector J1 and is the startup (boot) processor. If more than one microprocessor is installed, the microprocessor installed in the highest numbered microprocessor connector (normally J4) is the startup processor and the microprocessor installed in J1 is the application processor. 4. VRM 2 is shared between microprocessor 1 and microprocessor 2. VRM 5 is shared between microprocessor 4 and microprocessor 6. 5. Terminator cards are installed with the arrow pointing towards the rear of the system. The following table shows the order in which additional microprocessors and VRMs should be installed. Netfinity 5500 M20 - Type 8662 239