Insert the new battery into the battery socket and make sure it is firmly right in the place like the old one. Remove the computer case and locate the old battery on the motherboard.ĥ. Turn off the computer and cut off the power supply for the machine.ģ. If you’ve kept your computer working for over 5 years, it’s recommended to replace the CMOS battery. You can purchase such battery easily in any convenience stores. Most of the computers use the common button battery, namely the battery in model CR2032 3V. Replace the CMOS Battery to Fix the Checksum Error
#CMOS CHECKSUM ERROR WINDOWS#
In this Windows guide, we’ll walk you through top 2 ways to troubleshoot the checksum error, especially the “CMOS checksum error defaults loaded”.
#CMOS CHECKSUM ERROR PC#
Top 2 Ways to Fix CMOS Checksum Error on Windows PC Now that we’ve learned about the culprits that trigger the CMOS checksum error on the Windows, it’s time to take solutions to fix the error. In this case, you may receive an error message on the black screen as you can see in the picture below:
If the CMOS battery is used up, or if the BIOS values have become corrupted, which makes CMOS unable to retain data, then you’ll get the checksum error while the Windows machine is starting up. Complementary Metal-Oxide Semiconductor ( CMOS) is a battery powered semiconductor chip on the motherboard, which contains data related to the BIOS. BIOS will initialize and test the hardware, such as the CPU, memory, keyboard, mouse, etc. The checksum error is often related to the BIOS (Basic Input/Output System), the firstly running program once you power on the computer. Clearly, the junk I have is not really junk, satellite receivers, old pcs, pc parts.Fix CMOS Checksum Error on Windows 10, 8.1, 8, 7, Vista, XPĬMOS checksum error is an unusual computer error which occurs during the system startup. Thanks.įourtwentyfour wrote:I'm doing something really unusual, getting rid of junk. It's a big machine, Acer desktop, 2008, but it has drive bay for 6 drives which is very useful for moving data between them, my 'good' pc has only room for one drive.Īny positive ideas please? If anyone KNOWS there is no hope, that's acceptable. I have tried the ps2, first, then a usb keyboard, no difference. The 3 leds do flash on power up, and then it freezes. With the keyboard it goes straight to the startup image, and tells me to hit F1 or F3, as normal. I am not sure why there is this difference. [Alternatively, it has run to the point where is tells me checksum error, instead of the bios name. I think that this is when there is no keyboard attached. The machine boots and checks memory, drives, and stops at the very long name of the bios. I also used the jumper to reset the cmos. The battery was a bit low, 0.6v, and the new one 3.0v. I don't think the spec matters just yet, the problem is cmos checksum errors. The final one I have to get working is in good physical condition, nice and clean, and of a similar age to those above, so there is hope.
Well, being a bit ocd, maybe, I have to test stuff first, and if it works I'm afraid it might have to stay.ģ pcs have already gone to the tip, 2 now work on linux mint, one xp which I need for a short time. Clearly, the junk I have is not really junk, satellite receivers, old pcs, pc parts. I'm doing something really unusual, getting rid of junk.
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