IBM RS/6000 SP, Maintenance Information

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MAP 0140: Thin Node/Thin Node 2 Environment
032 (continued)
Have memory parts been changed recently (since last successful IPL) in this processor node?
Yes No
033
– Problem may be one of the following:
Ÿ Base memory card
Ÿ CPU card
Ÿ
I/O planar
Ÿ
Node supervisor control cable.
– Replace parts, one at a time, until problem is corrected.
Are you able to correct the problem?
Yes No
034
– Call next level of support.
035
Problem resolved.
– Go to “MAP 0570: End of Call” on page 1-357.
036
– Check memory card and SIMM part numbers in Diagnostic Information for Micro Channel Bus Systems
(SA38-0532) and
Adapters, Devices and Cable Information (SA38-0533) to ensure that they are com-
patible with the fastest Type 7012 machines.
– If necessary, call next level of support.
037
Problem with +4 V dc for CPU card power.
– Disconnect CPU power cable N00-DP-J204 at +4 V daughter power card.
– Using a digital multimeter, measure resistance between pin 1 and pin 5 on cable N00-DP-P204.
Voltage
Measure from (positive
lead)
To GND (negative lead) Acceptable Range
+4 V Pin 1 (red) Pin 5 (black) 4.0 - 100 Ohms
Is the measured resistance in acceptable range?
Yes No
038
– Remove CPU card from processor node, then repeat measurement from Step 037.
Is the measured resistance in acceptable range?
Yes No
039
(Step 039 continues)
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RS/6000 SP MAPs