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Document ID: DDSE-42ZR76

Netfinity 7000 M10 - Processor Board Component Locations and Processor Board Jumpers

Applicable to: World-Wide

Source: Hardware Maintenance

A simplified layout of the processor board is shown in the following illustration.

1	Memory board slot 1 connector (primary slot)
2	Memory board slot 2 connector (secondary slot)
3	Microprocessor core frequency selection jumper block (J43-46)
4	Processor board power-good LED
5	Microprocessor voltage-regulator connectors for microprocessor 4
6	Microprocessor voltage-regulator connectors for microprocessor 3
7	Left LED = ERR 1, Right LED = ERR 0
8	Microprocessor voltage-regulator connectors for microprocessor 2
9	Microprocessor voltage-regulator connectors for microprocessor 1
10	Microprocessor termination LED
11	Power-good test jumper J5 (default pins 1-2)
12	Microprocessor voltage-regulator LEDs
13	Microprocessor bus activity LED for microprocessor 4
14	Microprocessor bus activity LED for microprocessor 3
15	Microprocessor bus activity LED for microprocessor 2
16	Microprocessor bus activity LED for microprocessor 1
17	2.5 Volt power-good LED
18	Power backplane connector
19	Microprocessor 1 socket
20	Microprocessor 2 socket
21	Microprocessor 3 socket
22	Microprocessor 4 socket
23	I/O board connector

Processor Board Jumpers

Table 13 describes the jumpers on the processor board. The highlighted numbers in the table correspond to the
highlighted numbers on the illustration in "Processor Board Component Locations".

Notes 1. Turn off the server, and disconnect the power cord before moving any jumpers. 2. Be sure the microprocessor bus-to-core ratio is set correctly. For example, if you have a 450 MHz microprocessor installed and the system bus speed is 100 MHz (the default), be sure that the jumpers are set to a bus-to-core ratio of 4.5 (450/100). Refer to jumpers J43-J46 in Table 13. 3. Be sure to set the Microprocessor Core Frequency Selection jumper block for the slowest speed microprocessor installed in your server. For example, if your server has a 400 MHz microprocessor installed and you install three 450 MHz microprocessors, set the Microprocessor Core Frequency Selection jumper block for the 400 MHz microprocessor. MHz denotes internal clock speed of the microprocessor only; other factors also affect application performance.

Attention If the microprocessor bus-to-core ratio is incorrect, board components will overheat and component damage might occur. Be sure that the microprocessor bus-to-core ratio jumper is properly set.

Table 13. Processor Board Jumpers

Jumper Name

Description

3 Microprocessor core frequency selection (J43-J46)

The default core/bus fraction is 4.0 (400/100 MHz). Jumpers are installed on pins 1 and 2 of J44, J45 and J46, and jumpers are installed on pins 2 and 3 of J43. For the core/bus fraction 4.5 (450/100 MHz), the jumpers are installed 1 and 2 of J44, and J46, and jumpers are installed on pins 2 and 3 of J43 and J45. All microprocessors of speed 450MHz and up will automatically set their internal speeds, so the switch setting in not applicable.

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	Document Category	Processors
	Date Created	09-12-98
	Last Updated	21-05-99
	Revision Date	19-03-2000
	Brand	IBM PC Server
	Product Family	Netfinity 7000 M10
	Machine Type	8680
	Model	ALL
	TypeModel
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