cmos checksum error

[bkxaustin]

Hello everyone, I have a issue with my computer right now. Over the holidays I replaced my pc with my friends parts just the motherboard and cpu. I am getting the error cmos checksum error A2, my pc was working perfectly fine at his house. I went home and plugged it in and getting that error there changes to my computer from what was plugged in was, I used a hdmi at his house but I only have a dvi cord at my house, and I am using my keyboard instead of his. Those were the only changes, I got it to boot to windows but I would get a d-sub no signal message then went into power saving mode. Please help me with this error, I was thinking of trying a hdmi cable instead of dvi I will probably get to that tomorrow. If you guys need any further info please ask me I will answer the best I can.

BUILD:
MOTHERBOARD: Z87 CLASSIFIED
CPU: i7 4770k
GPU: nvidia gtx 780
HDD: 1tb western digital

 

[Paul NZ]

Sounds like something corrupted the BIOS. Remove the CMOS battery for a min then put it back in

 

[bkxaustin]

would pressing the "reset CMOS button" work?

 

[Paul NZ]

Soon find out try it

 

[bkxaustin]

I pressed it but it still gives me "CMOS CHECKSUM ERROR" then a A2 on the bottom right of the screen

 

[Paul NZ]

I dont think it has anything to do with the BIOS it maybe a hdd error. Check the cables

Either the hdds or the ram

 

[bkxaustin]

I replugged the hdd, the pc no longer boots into a cmos checksum screen, but I get beeps while it's booting up and a d-sub no signal message after windows loads

 

[Paul NZ]

How is it connected to the monitor? If youre using VGA to DVI or HDMI you need an active adapter

Or is the monitor on the right input if there's more than one input on it?

 

[bkxaustin]

I'm just using one cord its the dvi cord plugged into my gpu and monitor

ok, so I am no longer getting the error screen A2, but what I am getting is when it boots up the motherboard shows error b2 and the d-sub no signal happens once windows is finished loading

 

[bkxaustin]

Ok as of now, I get to the windows logo but right after that I get D-SUB NO SIGNAL.

I am able to boot into safe mode perfectly fine though.

 

[Paul NZ]

Odd that safe mode works but it doesnt work normally

 

[bkxaustin]

Hello! Thanks for the help you've given me, but I got it to boot normally and things are running fine. For some reason I plugged it into my tv with hdmi port and it worked!! but every time I used the d-sub port on my monitor it gave me no signal. I plan to order a new monitor with display port and hdmi port.

 

[Paul NZ]

Ah you didnt say that if you're using VGA to HDMI then you need an active adapter . Thats why you get no signal