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Service Hints & Tips |
Document ID: RMIE-38ZC4E |
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IBM PC - System hangs with distorted video after Windows logo
Applicable to: World-Wide
Symptom :
IBM PC 300 & 700 Series 6577, 6587, 6877, and 6887 systems may exhibit the following error conditions after starting either Windows 3.x or Windows 95:
- System hang condition with the Windows 3.x logo displayed on the screen.
- System hang condition and a blank display after displaying the Windows 3.x logo.
- System hang condition with blue and/or black horizontal bars across the display after displaying the Windows 95 logo.
These failures DO NOT occur on systems running OS/2 2.x or 3.x.
Problem Isolation Aids :
A limited number of PC 300 and 700 Series 6577, 6587, 6877, and 6887 systems manufactured prior to 8/6/96 (Date of Manufacture is printed on the IBM shipping carton) may contain a video memory module that may intermittently cause the symptoms stated above.
This tip applies ONLY to those systems with the following system board assembly part numbers and an NEC video memory module in location U23 on 6577/6587, or U22 on 6877/6887 system boards:
System Board 6577/6587 6877/6887
Assembly P/N's: 93H1675 96G3713, 96G3715, 96G3730
93H1677 60H7885, 60H7884, 60H7886
60H6948, 60H6950, 60H6952
FRU P/N: 93H1699 60H7020
NEC video module: U23 U22
NEC424210_60_A
96xxH5011
(xx = Date code range from 9610 to 9615)
The video memory is located at the left rear of the system board, next to the larger S3 module.
All other system board assembly part numbers with NEC video modules within the date code listed have been modified to eliminate the potential of failure.
NOTE: Not all NEC video memory modules matching the criteria above will fail. The failure symptom is highly intermittent and only occurs with Windows 3.x or
Windows 95.
Fix :
Indications of this highly intermittent failure will occur early in the product life or not at all, following the introduction of Windows 3.x or Windows 95. The potential for failure does not become greater as the product ages.
The system board should be replaced in systems exhibiting the failure symptoms and meeting the criteria above.
SAS Keywords :
PSVP PSY2 PSVPMEM PSY2MEM
PSVPPART PSY2PART PSVPBRD PSY2BRD
PSVPERR PSY2ERR PC 330 IBMPC
PC 330 PC 350 D/T6586 PSVPDISP
PSY2DISP
Search Keywords |
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Hint Category |
DOS/Windows 3.x, Lock-up/Hang, Retain, Video | |
Date Created |
29-08-96 | |
Last Updated |
25-01-99 | |
Revision Date |
19-05-99 | |
Brand |
IBM PC | |
Product Family |
PC 330, PC 350, PC 730, PC 750 | |
Machine Type |
6577, 6587, 6877, 6887 | |
Model |
various | |
TypeModel |
| |
Retain Tip (if applicable) |
H133775 | |
Reverse Doclinks |