CRC1 ERROR - IBM ThinkPad A21m 2628 Notebook

0175: bad crc1, stop post task ,ibm t20

error en el post : 175 crc1 bad

if you get this for a CD/DVD disc, your disc is bad...if you get this error on your hard drive, it means your drive is failing.

try to backup your data if possible and you will need to replace and reinstall all software. if the data is critical I recommend going with Drive Savers or another reputable recovery service.

Hi,

sounds as if one of your memory modules is defect.
CRC stands for Cyclic Redundancy Check and is a form of checking the memory.
If you have two modules inside, take on out and see what happens.

Best regards
Manfred

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

certain files for software have been moved or deleted the software needs to be reinstalled...norton antivirus on one of my machines used to do this (crc fail/error/not found)

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

That means that the data is corrupted somehow. It could be a damaged or bady written CD/DVD, or it could be data corruption on your hard drive, depending where the program is.
If it's on the hard drive, reinstall it. If it's the CD/DVD, you will need to get a new one, most likely.

You can try replacing theCMOS battery. This may work. Afterward set the bios to default. Please let me know how you make otu.

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/