cant boot after cmos change

mikedeuk

mikedeuk

Member
I changed the cmos battery and now my pc wont boot. It says something about failure to detect drives. It tried changing all the different raid settings but still no joy.
I probably need to reset all my bios settings but i dont know what they should be.

My hardware is as below except my primary drive is now a SSD.
 
Reset it again. This time on your first boot, go into the bios and make sure your boot drive is first in the boot order then pick optimized defaults. Save and exit. See if that helps.
 
Ok so i've tried all this but keep getting this message as it tries to boot:

BOOTMGR IS MISSING

All i can think is that the motherboard has lost its bios update? Any ideas?
 
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Make sure you're not booting to something that isn't there or isn't bootable, i.e. a flash drive, CD, external drive.
 
I've set the boot priority to the correct drive and disabled any others. I think the problem must be the motherboard settings which reset? I cant remember how to set it up, my boot drive is a SSD, and i also have a regular HD for storage, What sort of configuration should i have?
 
johnb35 said:
Make sure the sata controller setting is set for ahci not raid.
Click to expand...

This. I had 2 separate install of Windows 7 on my SSD and regular HDD at the same time. The SSD W7 would only boot if I was in AHCI mode and the HDD would only boot in IDE mode. Try both and see which works.
 
johnb35 said:
Make sure the sata controller setting is set for ahci not raid.
Click to expand...

Thanks for trying to help guys, Im set for ahci when i get the BOOTMGR missing message. I also tried changing it to IDE, There was a long pause then windows started to load but froze on the corporation loading screen.

When i restart now i just get the same error message. Something else must of been reset when i removed the CMOS, Is it likely that the motherboard would of lost its updates? Would that cause this problem?

I only have a 1 operating system, on my SSD and nothing on the HD, so there should be no confusion there.

Any more ideas?
 
mikedeuk said:
Thanks for trying to help guys, Im set for ahci when i get the BOOTMGR missing message. I also tried changing it to IDE, There was a long pause then windows started to load but froze on the corporation loading screen.

When i restart now i just get the same error message. Something else must of been reset when i removed the CMOS, Is it likely that the motherboard would of lost its updates? Would that cause this problem?

I only have a 1 operating system, on my SSD and nothing on the HD, so there should be no confusion there.

Any more ideas?
Click to expand...

mikedeuk; this is just a thought ,the other day i put in a new HDD, and it did not boot at all,not even after i put back the original HDD with the OPS installed , so i kinda struggled for awhile thinking the HDD that i ordered was bad and since i had added an ATI card that disabled the integrated card,i just moved the connection from the ati VGA card to the VGA integrated card and it booted right away,then installed ATI drivers,and everything went normal,that was a little scary i thought i had a bad motherboard after i swapped the HDD to a new one,
 
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No, the cmos reset won't do anything else to cause your drive not to boot. Do you see the windows logo at all? My guess would be failing HDD.
 
Sounds kinda like you screwed up your boot loader somehow. Have you tried running a repair install? What OS are you running? Did you install the OS on the SSD with harddrive connected?
 
StrangleHold said:
Sounds kinda like you screwed up your boot loader somehow. Have you tried running a repair install? What OS are you running? Did you install the OS on the SSD with harddrive connected?
Click to expand...

Yes i did see the windows logo but it didnt boot any further than that so maybe the install is corrupted somehow?

No, im not sure what a repair install is.

Im have windows vista,

and yes the harddrive was connected when i installed to the SSD, but im not aware that would make any difference?
 
....I just tried a repair install, and it froze on the loading files screen. Im now having trouble booting up at all, I cant even get to the bios/setup screen.
 
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