Tests and Diagnostics
3-158 [CONFIDENTIAL] PORTEGE M780 Maintenance Manual (960-809)
3.35.1.3 Test program list
The following table lists test items included in each test.
Test name Test No. Sub No. Test item
SYSTEM 1 01 DMI read
MEMORY 2 01
02
03
04
Conventional memory
Protected mode
Cache memory(on/off)
Stress test
KEYBOARD 3 01 Pressed key code display
DISPLAY
4 01
02
03
04
05
VRAM read/write for VGA
Gradation for VGA
Gradation for LCD
Gradation & Mode test for VGA
All dot on / off for LCD
FDD 5 01
02
03
04
05
Sequential read
Sequential read/write
Random address/data
Write specified address
Read specified address
--- 6 --- ---
--- 7 --- ---
HDD 8 01
02
03
04
05
06
07
08
09
Sequential read
Address uniqueness
Random address/data
Cross talk & peak shift
Partial Read
Write specified address
Read specified address
Sequential write
W-R-C specified address
REAL TIMER
9 01
02
03
Real time
Backup memory
Real time carry
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