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Service Hints & Tips

Document ID: BMOE-42HMJ8

TP 390, 172x - No Beep Symptoms

Applicable to: World-Wide

The following information is intended for IBM Dealers and Authorized Servicers only. Customers attempting to follow any of the procedures below may void their warranty.

No Beep Symptoms

Symptom/Error

FRU/Action in Sequence

No beep, power-on indicator on, LCD blank, no POST
  • Ensure every connector is properly seated.
  • DIMM
  • Reseat CPU card.
  • CPU card
  • Planar board

No beep, power-on indicator off, LCD blank during POST
  • Battery ASM
  • AC Adapter
  • DC-DC & BATT board ASM
  • Planar board

No beep, power-on indicator on, LCD blank during POST
  • Reseat DIMM.
  • CPU card
  • Planar board

No beep during POST but system runs correctly.
  • Speaker

Search Keywords

Hint Category

Error Messages

Date Created

23-11-98

Last Updated

06-04-99

Revision Date

06-04-2000

Brand

IBM ThinkPad

Product Family

ThinkPad 390, ThinkPad 390E, ThinkPad i Series 172x

Machine Type

2626, 2627

Model

Various

TypeModel

Retain Tip (if applicable)

Reverse Doclinks
and Admin Purposes