Question about IBM (09N5424) Motherboard

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CRC Problem What is the meaning of Error code- CRC 0175 in the IBM notebook T20/T23/T21 series ?

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  • Anonymous Apr 20, 2009

    IBM T20 laptop : - error CRC 0175 Eeprom checksum error has occurred during POST.

    BIOS or boot media selection can't be entry although F1 or F12 is pressed during boot respectively.

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2 Answers

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  • Master
  • 395 Answers

Try these:
1.unplug AC,battery,HHD and DVD-ROM
2.press power button,last more than 10 seconds
3.plug battery and AC power
4.power on
5.when see the IBM logo,press F1 button immediately.

If see the error message again,try again!

or bad systemboard

http://www-307.ibm.com/pc/support/site.wss/document.do?sitestyle=lenovo&lndocid=MIGR-4K2MCU

Posted on Jan 03, 2009

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  • Master
  • 818 Answers

Chances are since the system CRC1'd it has a very old BIOS revision. From version 1.10 on, the CRC issue has been fixed. So, get the latest BIOS from IBM, T21 BIOS: ftp://ftp.software.ibm.com/pc/pccbbs/mobiles/spsdkz34.exe and flash the BIOS. Reboot the system and verify the updated BIOS. Now power down the system, desolder the known good EEPROM and resolder the CRC1 EEPROM. Boot the machine and hit ESC when the splash screen comes up and watch the post screen. The new BIOS should have recalculated the EEPROM checksum and written the changes to it. You'll know if it worked because the CRC1 error will be gone.

Posted on Jan 03, 2009

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Posted on Jan 02, 2017

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http://www-307.ibm.com/pc/support/site.wss/MIGR-4PEN8X.html.POSSIBLE EPROM FAILURE CONTACT IBM FOR REPLACEMENT.RICHARDM69

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