0175 error post task

0175: bad crc1, stop post task ,ibm t20

It maybe either a BIOS update is needed or a dying CMOS battery on the motherboard. I'd search the IBM/Lenovo website using the error code you've listed here to get some suggestions. Try this link and look under error code 0175 for advice.

You obviously didn't read the problem carefully. The machine won't boot, so there is no command line. I have the same problem with a T23. It might be the CMOS battery that needs to be replaced.

Numeric error codes - ThinkPad General From IBM Web Site
Notes:
· The most likely cause is listed first.
· A numeric error is displayed for each error detected in POST or system operation.
· In the displays, n can be any number

Error code
Symptom or error

Field replaceable unit or action, in sequence
0175









Bad CRC1, stop POST task. The EEPROM checksum is not correct


This problem you may not be able to fix. There are a couple of things you can try.
1st Keep on rebooting your laptop until this error goes away.
2nd Replace the BIOS battery, it maybe nearly worn out. After replacement you need to go into the BIOS setting to set the Date & Time.
System board

Error code Symptom or error Field replaceable unit or action, in sequence 0175 Bad CRC1, stop POST task. The EEPROM checksum is not correct. System board

The CRC error (POST = power on startup test) on boot up refers to the BIOS settings. This could be cause by a near flat BIOS battery and it needs to be replaces. If it is not the battery you need go to the BIOS to correct any faulty settings.

hi i have a a20m ibm thinkpad with a 0175 error (crc1) can any one help

sounds like cmos battery flat small battery inside pc to retain cmos setting when pc switched off

This error is typical of a problem with the system board.
http://www-307.ibm.com/pc/support/site.wss/document.do?sitestyle=lenovo&lndocid=MIGR-4K2MCU

I've only seen this error appear on IBM thinkpads. Your EEPROM with the following steps.
You can try this to test the EEPROM
1.unplug AC,battery, HDD and and your cd/dvd rom drive.
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 the same error pops up, try it a few more times. If the error keeps displaying then it is the motherboard

There are a couple of possibilities, go to this link for the solutions, but it could be a bad power supply http://www.hardwareanalysis.com/content/topic/31761/