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4. Press the toggle switch on the LGA-ST forward to the MCM/L3 PWR/GND position. This action will test
the L3 modules for power-to-ground shorts. Observe the lit LEDs on the LGA-ST and take the
corresponding following actions:
Green L3 LED is lit
This is a pass state. No further action is required.
Amber L3 LED is lit
This is a fail state. There might be a short between one of the two L3 voltages and ground,
which is a failing condition, or the combination of memory books, I/O books, and L3 cache
modules in parallel might be creating a low resistance.
Complete the following steps to correct this condition:
a. Disengage memory books followed by I/O books one at a time.
b. Repeat step 2a on page 835 through step 2h on page 836 until either the L3 test results in
a pass state, or all memory and I/O are disengaged and the L3 test remains in a fail state.
c. If the L3 module test remains in a fail state after all memory and I/O are disengaged,
remove the L3 module and inspect the interposer for shorts.
d. Reinstall the L3 module once and repeat the test. If the fail persists, replace the L3
module.
Green MCM LED is lit
This is a pass state. No further action is required.
Amber MCM LED is lit
This is a fail state. There might be a short across the MCM voltage and ground. Perform the
“Method 3. Testing MCMs and Pass Through Modules for a Short Circuit” on page 816 and
correct any short conditions before powering on.
5. Place the toggle switch into the L3 PWR/PWR position.
Green and Amber MEM LEDs are not lit
Power is removed from these circuits when the switch is in the L3 PWR/PWR position.
Green L3 LED is lit
This is a pass state. No further action is required.
Amber L3 LED is lit
This is a fail state. There is a short between the two L3 power domains. Complete the
following steps to correct this condition:
a. Remove the L3 module and inspect the interposer for shorts.
b. Reinstall the L3 module once and repeat the test. If the fail condition persists, replace the
L3 module.
6. Install another L3 module and repeat step 3 on page 836 through step 5 until all required L3 modules
are installed.
Shorts Test Qualified Service Meters and Fail Criteria
Manufacturer
Model
Range
Accuracy @ 1.0
ohms or less
Fail Criteria
Fluke
8060A
200 Ohms
+/-0.04
+0.40
Fluke
8060A/AA
200 Ohms
+/-0.04
+0.40
Fluke
8062A
200 Ohms
+/-0.04
+0.40
Fluke
187
500 Ohms
+/-0.10
+0.40
Fluke
189
500 Ohms
+/-0.10
+0.40
Fluke
83 (original models)
400 Ohms
+/-0.10
+0.40
Fluke
85 (original models)
400 Ohms
+/-0.10
+0.40
Chapter 9. Removal and Replacement Procedures
837
Содержание pSeries 670
Страница 1: ...pSeries 670 Service Guide SA38 0615 03 ERserver...
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Страница 3: ...pSeries 670 Service Guide SA38 0615 03 ERserver...
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Страница 16: ...xiv Eserver pSeries 670 Service Guide...
Страница 18: ...xvi Eserver pSeries 670 Service Guide...
Страница 256: ...Make sure all the green power good out LEDs of both I O subsystem DCAs are off 236 Eserver pSeries 670 Service Guide...
Страница 324: ...Yes Go to Step 154A 14 on page 302 304 Eserver pSeries 670 Service Guide...
Страница 718: ...698 Eserver pSeries 670 Service Guide...
Страница 828: ...number 8 Exit the menu completely before powering on the system 808 Eserver pSeries 670 Service Guide...
Страница 835: ...MCM Installation Shorts Test Step 3 See L3 Cache Modules on page 819 Chapter 9 Removal and Replacement Procedures 815...
Страница 848: ...L3 Cache Shorts Test Step 4 828 Eserver pSeries 670 Service Guide...
Страница 849: ...L3 Cache Shorts Test Step 5 Chapter 9 Removal and Replacement Procedures 829...
Страница 851: ...L3 Cache Shorts Test Step 2 Chapter 9 Removal and Replacement Procedures 831...
Страница 853: ...L3 Cache Shorts Test Step 4 Chapter 9 Removal and Replacement Procedures 833...
Страница 854: ...L3 Cache Shorts Test Step 5 834 Eserver pSeries 670 Service Guide...
Страница 971: ...7040 Model 671 Media Subsystem 1 2 3 4 5 6 7 8 9 10 Chapter 10 Parts Information 951...
Страница 973: ...Power and SCSI Cables to the Media Subsystem 1 2 3 5 4 6 Chapter 10 Parts Information 953...
Страница 986: ...966 Eserver pSeries 670 Service Guide...
Страница 990: ...970 Eserver pSeries 670 Service Guide...
Страница 1005: ...error Handle unexpected modem responses expect 8 r or 7 r or 6 r or 4 r or 3 r delay 2 done Appendix D Modem Configurations 985...
Страница 1018: ...998 Eserver pSeries 670 Service Guide...
Страница 1019: ...Appendix E Ground Path The ground path for the pSeries 670 is shown in the following figure 999...
Страница 1020: ...1000 Eserver pSeries 670 Service Guide...
Страница 1028: ...1008 Eserver pSeries 670 Service Guide...
Страница 1031: ......
Страница 1032: ...Printed in U S A July 2003 SA38 0615 03...