IBM pSeries 670 Service Manual page 753

To change the plug count for a particular module, enter a menu index number. For example, to change
the plug count of the L3 module that is physically in the upper-right corner (U1.18-P1-C8), type 5, then
enter the new plug count.
When all of the new plug counts have been entered, select 50, Commit the values and write to the
VPD. This action stores the new values in NVRAM.
Determining the number of MCMs in a system: To determine the number of MCMs installed in the
system, do one of the following:
– If the managed system is powered down, go to "System Information Menu" on page 724, then to the
section titled "Processor Configuration/Deconfiguration Menu" and refer to the example menu. The
VPD port is shown as x.y, where x is in the range 3-6 and y is in the range 0-7.
The listing of the VPD ports on the screen is used to determine the number of MCMs in the
managed system.
3.y=MCM0 (U1.18-P1-C1)
4.y=MCM1 (U1.18-P1-C4)
– If AIX is booted on the managed system, issue the following command on the AIX command line, to
display a line of information for each MCM installed in the system:
lscfg -vp | grep MCM
The following table shows the plugging order of each MCM and its associated L3 cache modules.
MCM
First MCM:
L3 Modules
Second MCM:
L3 Modules
v Performance Mode Setup Menu
If certain types of processor cards are installed in the system, this menu is not applicable. For other
types of processor cards, this menu will be active after the first boot as noted below.
Note: The first time the system is booted after NVRAM is cleared, Not Applicable displays under
Performance Mode Setup Menu on the screen. This may also happen if the service processor is
replaced, or the processor MCMs are upgraded.
If option 12 is selected when Not Applicable is on the screen, the system responds with Not
Applicable and redisplay the system information menu. The setup menu can be displayed after
the performance mode is set, which happens the first time the system is booted.
The default performance mode is set by the firmware during IPL. The default mode provides the
optimum performance for the hardware configuration of the system. The performance mode is
systemwide; it cannot be set on a per-partition basis.
You can override the default setting by using the performance mode setup menu. The performance
mode setup menu will be similar to the following:
Physical Location CODE
U1.18-P1-C1
U1.18-P1-C6
U1.18-P1-C7
U1.18-P1-C10
U1.18-P1-C11
U1.18-P1-C4
U1.18-P1-C14
U1.18-P1-C15
U1.18-P1-C18
U1.18-P1-C19
Interposer Plug Count Menu Index
Number
3. MCM_0
2. L3_0
4. L3_1
7. L3_3
8. L3_2
14. MCM_1
13. L3_10
15. L3_11
18. L3_9
19. L3_8
Chapter 7. Using the Service Processor
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