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Service Hints & Tips |
Document ID: RMIE-3JBFVY |
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This document is provided to IBM and our Business Partners to help sell and/or service IBM products. It is not to be distributed beyond that audience or used for any other purpose. |
IBM PC330/PC350 - Jumper corrections
Applicable to: World-Wide
Service Information:
Below are items that have been reported to IBM as errors and/or missing information in the area of PC 300 (486) jumpering and configuration.
Note:
This tip will be periodically updated with additional information as required. IBM PC 300 486 based systems may contain a label on the underside of the top cover assembly that shows incorrect PCI/VL-Bus jumper settings. The correct positions for the PCI/VL-Bus jumper are documented in the May 1995 300/700 Series HMM on page 100 and illustrated below:
Selection | JP3 | JP4 | JP13 | JP7 |
Selection | JP3 | JP4 | JP13 | JP7 |
----------+--------+--------+---------+--------+
VESA | 1-2 | 1-2 | Open | Open |
Local | | | | |
Bus | | | | |
----------+--------+--------+---------+--------+
PCI | 2-3 | 2-3 | Close | Close |
BUS | | | | |
----------+--------+--------+---------+--------+
Processor Speed jumpers or CPU Speed Selection jumpers:
Some earlier field documentation was misleading or incorrect when addressing the CPU Speed Selection jumpers. The chart
below illustrates the correct orientation of the jumpers depending on the processor installed.
Speed | J35 ! J36 ! J37 |
----------+--------+--------+---------+
20Mhz | ON | OFF | OFF |
--------------------------------------|
25Mhz (D) | OFF | ON | ON |
----------+--------+--------+---------|
33Mhz | OFF | ON | OFF |
--------------------------------------|
40Mhz | OFF | OFF | ON |
----------+--------+--------+---------|
50Mhz | OFF | OFF | OFF |
--------------------------------------+
Note:
Incorrect placement of the speed selection jumper may cause system failures and an incorrect Processor Speed designation in the systems Setup Utility. Always check the jumper settings on replacement system board FRU's to match the processor installed. The default setting for replacement boards is the 25Mhz setting.
SAS KEYWORDS:
PSY2 PSVP PSY2PART PSVPPART
IBMPC PC300 PC 330 PC350
6571 6573 6581 6583
D/T6571 D/T6573 D/T6581 D/T6583
PSVPERR PSY2ERR PSVPBRD PSY2BRD
DEAD HANG HANGS
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Hint Category |
Retain, Hardware Maintenance Information | |
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Date Created |
17-01-96 | |
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Last Updated |
27-04-98 | |
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Revision Date |
23-04-99 | |
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Brand |
IBM PC | |
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Product Family |
PC 330, PC 350 | |
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Machine Type |
6571, 6573, 6581, 6583 | |
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Model |
486 | |
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TypeModel |
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Retain Tip (if applicable) |
H132166 | |
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