CMOS battery dies, get invalid checksum then blue screen

September 17, 2015 at 07:55:06
Specs: Windows 7
After replacing battery I cannot get boot, even when I replace HD with another that works. Boot file may have corrupted since the failure occurred during boot.

Can't run BIOS disk. Can't boot in order to run CHKDSK \F

Any ideas?

message edited by Rooof


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#1
September 17, 2015 at 08:16:01
What prompted you to replace the battery? Removing the drive and putting in one that works on another computer won't necessarily show anything as far as troubleshooting goes.

Put the original drive back in.

You didn't provide your make/model, but take a look here:

http://www.tomshardware.com/answers...

http://support.hp.com/us-en/documen...


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#2
September 17, 2015 at 08:58:28
Invalid checksum usually results from a failed CMOS battery. Neither HD works since the boot fails before I can even get to it. Just checking to see if a HD problem was causing the failed boot blue screen of death.
Can the boot file be corrupted since the failure was during a boot? Where can I download a good boot file for this Lenovo Thinkpad T61

message edited by Rooof


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#3
September 17, 2015 at 13:22:35
"After replacing battery I cannot get boot"

After changing the battery, did you immediately enter the BIOS to correct the date/time, boot order, SATA/IDE settings, etc, etc? If not, that would be the place to start.


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Related Solutions

#4
September 17, 2015 at 19:04:53
How to use a Lazesoft Windows Recovery CD or USB device to fix the boot problems if your Windows operating system does not start correctly
http://www.lazesoft.com/fix-boot-pr...
"It is very common for PC users to be faced with a Windows crash. When this happens, the dreaded 'Blue Screen of Death' pops up, or your PC has a black screen and can not boot or start up"

Lazesoft Recovery Suite Home Edition
http://www.softpedia.com/get/System...
http://www.lazesoft.com/lazesoft-re...
Tutorials
http://www.lazesoft.com/guide.html
Screenshot ( SS )
http://i.imgur.com/c9viJO4.gif
http://i.imgur.com/DdozUxq.gif
How to Boot a Computer from a Lazesoft Recovery USB Device
http://www.lazesoft.com/create-a-bo...


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#5
September 18, 2015 at 07:21:29
Yep...found an obscure reference to the GEHI SATA default setting in the BIOS...changed to compatibility and presto fixo!)
Why does MS(hit) do this c(rap) to customers? At least they should provide this hint as a troubleshooting guide.

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#6
September 18, 2015 at 09:08:17
Microsoft doesn't write the BIOS. The troubleshooting guide that you mentioned is probably in your motherboard manual.

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#7
September 19, 2015 at 08:35:01
Who chose this BIOS(?) Who put it into the system? MS(hit) has to take responsibility for their tech decisions. Why is Advance Host Controller Interface the default if this prevents the HD being read? This situation should be anticipated and information or automatic switching used. The system is Lenovo ThinkPad x32 T61 model T6464-4yu.

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#8
September 19, 2015 at 08:40:00
What MB manual? Where is it?

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#9
September 19, 2015 at 14:56:11
"What MB manual? Where is it?"
On the CD that came with the comp.



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