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Chapter 3 Power-On Self-Test 3-21
3.5 Bypassing POST
POST can be disabled and thereby bypassed. To bypass POST:
1. Prior to powering on the system, press and hold the Stop key on the keyboard
(
FIGURE 3-2).
2. With the Stop key pressed, turn on the system by pressing the power-on key.
TABLE 3-2 Keyboard LED Patterns
Caps Lock Compose Scroll Lock Num Lock Meaning of Pattern
On Off Off Off System motherboard
Off On Off Off CPU module 0
Off On On Off CPU module 1
On Off Off On No memory detected
On On Off Off Memory bank 0
On On Off On Memory bank 1
On On On Off Memory bank 2
On On On On Memory bank 3
Off Off Off On NVRAM