IBM 755X (9545) User Manual
Symptom/Error
FRU/Action
Two short beeps with error
codes.
codes.
POST error. See
“Numeric Error Codes” on
page 217.
“Numeric Error Codes” on
page 217.
Two short beeps with blank
screen.
screen.
System Board
No Beep Symptoms
Symptom/Error
FRU/Action
No beep, power-on indicator
not on, and a blank LCD
during POST.
not on, and a blank LCD
during POST.
1. Go to “Power
Systems Checkout”
on page 207.
on page 207.
2. System Board
3. DC/DC Card
4. Power sources
3. DC/DC Card
4. Power sources
No beep, power-on indicator
on, and a blank LCD during
POST.
on, and a blank LCD during
POST.
1. System Board
2. DC/DC Card
2. DC/DC Card
3. Processor Card (370C,
750Ce, 755C, 755Cs)
No beep, power-on indicator
on, and a blinking cursor
only during POST.
on, and a blinking cursor
only during POST.
1. System Board
2. Processor Card (370C,
750Ce, 755C, and
755Cs)
755Cs)
3. DC/DC Card
No beep during POST but
system runs correctly.
system runs correctly.
1. Turn the volume up
and check the
speaker
speaker
2. Speaker
3. Audio Card
4. DC/DC Card
3. Audio Card
4. DC/DC Card
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IBM Mobile Systems HMM