Product Documentation
Abstract
Processor board component locations: A layout of the processor board is shown in the illustration in this document.
Content
Processor board component locations
A layout of the processor board is shown in the following illustration.
1 Microprocessor 1 connector (J1)
2 Microprocessor 1 error LED (CR16)
3 Microprocessor 1 fan power connector (J7)
4 Microprocessor 2 fan power connector (J8)
5 Microprocessor 2 connector (J2)
6 Microprocessor 2 error LED (CR15)
7 Power control connector (to power backplane) (J33)
8 Reserved (might not be present) (J15)
9 Power connector (to power backplane) (J32)
10 Microprocessor 3 error LED (CR18)
11 Reserved (might not be present) (J22)
12 Reserved (might not be present) (J23)
13 Microprocessor 3 connector (J3)
14 Microprocessor 4 error LED (CR21)
15 Power connector (J35)
16 Microprocessor 4 connector (J4)
17 Microprocessor 3 fan power connector (J9)
18 Microprocessor 4 fan power connector (J10)
19 Memory board connector
20 Reserved (J24)
21 Reserved (J37)
22 Fan 4 connector (J36)
23 Reserved (might not be present) (J21)
24 Reserved (J20)
25 System board connector (on reverse side of processor board)
26 VRM 6 connector (J18)
27 VRM 6 error LED (CR4)
28 VRM 5 connector (J17)
29 VRM 5 error LED (CR7)
30 VRM 4 connector (J16)
31 VRM 4 error LED (CR2)
32 Reserved (J11)
33 VRM 3 connector (J14)
34 VRM 3 error LED (CR3)
35 VRM 2 connector (J13)
36 VRM 2 error LED (CR6)
37 VRM 1 connector (J12)
38 VRM 1 error LED (CR5)
39 - 42 Microprocessor core-frequency-selection jumper block (J31 - J28)
43 Reserved (J27)
44 Reserved (J25)
45 Reserved (J26)
46 Reserved (J19)
47 Reset system jumper block (J34)
Processor board jumpers
Table 14 contains the names and descriptions of the jumper blocks located on the processor board. Table 15 shows the microprocessor core-frequency-selection jumper settings. The highlighted numbers in the table refer to the highlighted numbers in the illustration in "Processor board component locations" above.
| NOTES:
|
| Attention If the microprocessor bus-to-core fraction is incorrect, system board components will overheat and component damage might occur. Be sure that the microprocessor core frequency selection is properly set. |
Table 14. Processor board jumpers
| Jumper name | Description |
|---|---|
| 20 J24 Reserved | The default position is a jumper on pins 1 and 2. |
| 22 J37 Reserved | The default position is a jumper on pins 1 and 2. |
| 23 J21 Reserved | The default position is a jumper on pins 2 and 3. |
| 24 J20 Reserved | The default position is a jumper on pins 1 and 2. |
| 39 - 42 J31 - J28 Microprocessor core frequency selection | For the core/bus fraction 4 (400/100 MHz), jumpers are installed on pins 1 and 2 of J28, J30, and J31 and on pins 2 and 3 of J29. For the core/bus fraction 4.5 (450/100 MHz), jumpers are installed on pins 1 and 2 of J28 and J31 and on pins 2 and 3 of J29 and J30. For the core/bus fraction 5 (500/100 MHz), jumpers are installed on pins 1 and 2 of J30 and J31 and on pins 2 and 3 of J28 and J29. |
| 43 J27 Reserved | The default position is a jumper on pins 1 and 2. |
| 44 J25 Reserved | Reserved The default position is a jumper on pins 1 and 2. |
| 45 J26 Reserved | The default position is a jumper on pins 2 and 3. |
| 47 J34 Reset system | The default position for normal operation is no jumper on J34. Installing a jumper on pins 1 and 2 will force the system into the reset state. |
Table 15. Microprocessor core frequency selection switch (SW1) settings
| Core/bus fraction | J28 Jumper | J29 Jumper | J30 Jumper | J31 Jumper |
|---|---|---|---|---|
| 4 | Pins 1 and 2 | Pins 2 and 3 | Pins 1 and 2 | Pins 1 and 2 |
| 4.5 | Pins 1 and 2 | Pins 2 and 3 | Pins 2 and 3 | Pins 1 and 2 |
| 5 | Pins 2 and 3 | Pins 2 and 3 | Pins 1 and 2 | Pins 1 and 2 |
NOTE: For jumper settings for other speed microprocessors, refer to the label on the inside top cover of the server.
Document Location
Worldwide
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Document Information
Modified date:
23 January 2019
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ibm1MCGN-45WU9P