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cmos checksum error - defaults loaded


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#1
tubui

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I just recently put in my CPU and when I boot up my computer it says CMOS checksum error - defaults loaded.

Press F1 to continue. What is this mean and how do I fix it so that it automatically boots up without me pressing F1 and how do I fix the error? :whistling:

There is nothing wrong with my computer.. I just put in CPU again and put in heat compound and all then I get this message...

:blink:
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#2
Kemasa

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You can try going into the setup and saving the values, which should write the values and deal with the checksum error. If that does not work, try changing/testing the battery.
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#3
Neil Jones

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Many recent boards will want you to go into Setup if you change something major like the CPU, because of the likelihood it won't be running at the right speed. Usually this is a one-off event so you shouldn't have to bash F1 next time.
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#4
Y2eel

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I just installed a new MSI powerup plat mother board e6300 cpu and iam having the same problem but when i hit delete or f1 nothing happens...
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#5
bmwboy

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I just installed a new MSI powerup plat mother board e6300 cpu and iam having the same problem but when i hit delete or f1 nothing happens...

Try clearing the CMOS, I had a problem very similar to this once, and this fixed it. There is probably a jumper on the mother board that does this, set it to clear CMOS, boot up once, let run for a minute, turn off, and return the jumper to the original spot.

--bmwboy
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#6
racinmason001

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A checksum error means cmos battery is nearing its end of life. I would recommend changing the cmos battery, but write down system settings before you change it, so you can easily get it up and running after the battery change.
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#7
Y2eel

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Ive tried resetting the bios witht the msi motherboards it has a button you press to reset and its a new motherboard so the battey should be new but i did try another battery but have had the same problem....
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#8
HPDV8315LOVER

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Try leaving the CMOS battery out of the motherboard for 72 hours.
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