Percaso
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Hello i have some troubles with my 780i SLI FTW, right at the start up the following pop ups and an endless beepin starts.
--
BIOS ROM checksum error
Detecting floppy drive A media...
Drive A error. System halt
----
I dont have a floppy installed, never had.
I have tried clearing CMos, replacing the battery with a new one. Didnt work.
Tried different graphic cards. Didnt work.
Tried different memory sticks. Didnt work.
Please help me out!
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coolmistry
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Re:780i SLI FTW "BIOS ROM checksum error" "error 41"
2013/08/17 10:26:08
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Hello and Welcome to the EVGA Forums  Did you disable floppy drive A in your BIOS setting?
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Percaso
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Re:780i SLI FTW "BIOS ROM checksum error" "error 41"
2013/08/17 10:39:42
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Hello and thank you!
I cant say, and since i have cleared Cmos several times it should be default settings. (dont know what that is).
And i cant get into BIOS this error comes before i can even try to enter BIOS.
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coolmistry
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Re:780i SLI FTW "BIOS ROM checksum error" "error 41"
2013/08/17 10:46:44
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Try press and hold Power button for few sec!! if not work then try remove power from wall and move pin jumper on to 1 and 2 then remove batteries then leave for 10 mins!! After 10 mins put batteries in first and then move Pin jumper onto 2 and 3 to normal boot up!! Let us know!! 
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Percaso
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Re:780i SLI FTW "BIOS ROM checksum error" "error 41"
2013/08/17 11:14:57
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The 780i SLI FTW doesnt have pin jumper it only has a red clear cmos button, i have tried and removing the battery for 10min, didnt work.
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coolmistry
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Re:780i SLI FTW "BIOS ROM checksum error" "error 41"
2013/08/17 11:22:15
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Let try run one ram stick after reset CMOS BIOS then try test boot up!!! I am sorry I got go out in a mins but I sure other member will carry on help you! I will come back to check here post if you still stuck the problem then we can carry the problem from there okay!!
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Percaso
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Re:780i SLI FTW "BIOS ROM checksum error" "error 41"
2013/08/17 11:35:26
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Okey i tried with only 1 memory stick after having Cmos battery out for 10+min and then pressing clear Cmos. I got diffrent post code now.
I got code 25 instead of 41
25 - Shadow VBIOS - Shadow system/video BIOS
that is the description in the manual..
I tried graphic card in diffrent pci-e slots same thing.
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coolmistry
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Re:780i SLI FTW "BIOS ROM checksum error" "error 41"
2013/08/17 12:34:01
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I am using my iphone wifi at the pub lol!! Okay let remove power from the wall then remove gpu cards and all 4 sticks ram then do press reset bios cmos then put back gpu card and one stick ram to test boot up!!
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Percaso
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Re:780i SLI FTW "BIOS ROM checksum error" "error 41"
2013/08/17 12:47:37
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haha i appreciate the help :)
I did as you said and the screen is black and i get a new code:
"2b - Init video - Initialize Video"
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coolmistry
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Re:780i SLI FTW "BIOS ROM checksum error" "error 41"
2013/08/17 13:11:52
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Mmmm what i thinking if you can try remove gpu, ram, all usb and disconnect hhd or ssd! Make sure remove power from the wall and batteries too then let rest for 30 mins! Let try and hope should be work!! If not workt then i will come back tomorrow okay!!
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Percaso
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Re:780i SLI FTW "BIOS ROM checksum error" "error 41"
2013/08/17 14:05:36
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I okey i removed everything for 30min and then plugged everything back in (1 ram 1 gpu only) still same error 2b
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quadlatte
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Re:780i SLI FTW "BIOS ROM checksum error" "error 41"
2013/08/17 17:37:12
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are you getting video on the screen?
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Percaso
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Re:780i SLI FTW "BIOS ROM checksum error" "error 41"
2013/08/18 00:57:08
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No its all black, power button on the screen blinking like its not connected.
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coolmistry
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Re:780i SLI FTW "BIOS ROM checksum error" "error 41"
2013/08/18 03:47:29
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Percaso
I okey i removed everything for 30min and then plugged everything back in (1 ram 1 gpu only) still same error 2b
That strange  ! You got all the numbers of error code!! Let try push and twist the BIOS Chipset in properly!!
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Percaso
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Re:780i SLI FTW "BIOS ROM checksum error" "error 41"
2013/08/18 06:10:00
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coolmistry
Percaso
I okey i removed everything for 30min and then plugged everything back in (1 ram 1 gpu only) still same error 2b
That strange ! You got all the numbers of error code!! Let try push and twist the BIOS Chipset in properly!!
Okey tried, nothing still same.
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coolmistry
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Re:780i SLI FTW "BIOS ROM checksum error" "error 41"
2013/08/18 06:22:16
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Percaso
coolmistry
Percaso
I okey i removed everything for 30min and then plugged everything back in (1 ram 1 gpu only) still same error 2b
That strange ! You got all the numbers of error code!! Let try push and twist the BIOS Chipset in properly!!
Okey tried, nothing still same.
Percaso
haha i appreciate the help :)
I did as you said and the screen is black and i get a new code:
"2b - Init video - Initialize Video"
That Code 2b I have this happen on my mobo but I can't remember how I did fix lol!!! Ermmm possible if you can remove CPU Socket and let rest 10mins again I know it pain the neck ha!!! Make sure power shut down!!!
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coolmistry
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Re:780i SLI FTW "BIOS ROM checksum error" "error 41"
2013/08/18 06:35:09
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Percaso
I okey i removed everything for 30min and then plugged everything back in (1 ram 1 gpu only) still same error 2b
WAIT!!!! Let me check with you if that confuse there two error code is 2 b is 26 but I think it 26 and 2' B' because BIG Letter!!!! check the code again please!!
post edited by coolmistry - 2013/08/18 06:37:33
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Percaso
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Re:780i SLI FTW "BIOS ROM checksum error" "error 41"
2013/08/18 06:41:03
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Okey removed cpu and put it back in again, did nothing same thing 2b and black screen.
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Percaso
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Re:780i SLI FTW "BIOS ROM checksum error" "error 41"
2013/08/18 06:47:02
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Well yea i guess it could be code 26 instead of 2b, becouse nr 28 is "Reserved" it says in the manual so maybe they use big letter B instead of nr 8..
Code 26 says:
26 - Clock Gen - Init onboard clock generator and sensor
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quadlatte
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Re:780i SLI FTW "BIOS ROM checksum error" "error 41"
2013/08/18 06:58:09
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Have you tried a new cmos battery?
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coolmistry
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Re:780i SLI FTW "BIOS ROM checksum error" "error 41"
2013/08/18 06:58:16
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Yeah I agree!!! I read old forums here I hope this help and Could be bad GPU or PSU just give you idea!!! I not sure maybe can you try test other GPU card if yo have?
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Percaso
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Re:780i SLI FTW "BIOS ROM checksum error" "error 41"
2013/08/18 07:07:20
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I have tried with a new cmos battery allready and tried 3 (!) diffrent gpus and still same..
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coolmistry
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Re:780i SLI FTW "BIOS ROM checksum error" "error 41"
2013/08/18 07:11:57
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 Do you have warranty for your mobo? I know you will not able to RMA same Mobo so? I out of idea sorry and let hope other members will help you!! I try think the idea I will come back here okay
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Percaso
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Re:780i SLI FTW "BIOS ROM checksum error" "error 41"
2013/08/18 07:18:33
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I registered it when i bought it so according to my profile page here i got 10years warranty on it.. Guess i contact evga..
Thanks alot for help..
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coolmistry
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Re:780i SLI FTW "BIOS ROM checksum error" "error 41"
2013/08/18 07:19:22
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How old is your Power PSU and how long did you use?
what full system Specs please?
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coolmistry
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Re:780i SLI FTW "BIOS ROM checksum error" "error 41"
2013/08/18 07:20:27
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Percaso
I registered it when i bought it so according to my profile page here i got 10years warranty on it.. Guess i contact evga..
Thanks alot for help..
Nice one yeah good idea!! Please let us know how getting on?
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Percaso
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Re:780i SLI FTW "BIOS ROM checksum error" "error 41"
2013/08/18 07:31:08
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Full specc:
EVGA nForce-780i SLI, ForTheWin (FTW)
Intel® Core 2 Duo Processor E8400 Socket-LGA775, Dual Core, 3Ghz, 6MB, 65W
XFX GeForce GTX 260 680M 896MB PhysX
Corsair Dominator TWIN2X PC8500 4GB DDR2
Corsair HX 750W PSU
I bought PSU december 2009 and have used it since
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coolmistry
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Re:780i SLI FTW "BIOS ROM checksum error" "error 41"
2013/08/18 07:40:35
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Everything is fine!! Let RMA Thanks for post Detail!
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petergroft
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Re:780i SLI FTW "BIOS ROM checksum error" "error 41"
2023/03/16 00:59:35
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Incorrect BIOS/CMOS Settings
Whether your CMOS settings got corrupted after a long period of no use or you messed up the BIOS settings yourself, bringing them to their defaults is quite easy. Simply access the BIOS and select the “Load Defaults” option. If your BIOS is not accessible anymore, you can perform a hardware reset by using the “Clear CMOS” jumper on the motherboard. Refer to your motherboard’s manual for instructions on how to perform this operation. There’s also a third way to reset the BIOS settings: unplug your computer, remove the CMOS battery, and simply wait a few minutes for the CMOS chip to remain completely unpowered; this will bring it to the default settings.
Unsuccessful Upgrade
If you come across a BIOS checksum error as a result of an upgrade that went wrong, try removing the newly installed components and testing them on a different machine to see if they all function correctly. You can also test the components in the computer you want to upgrade by installing one component at a time and see if the machine works correctly. Once you identify which part is the troublemaker, you can replace it with another component or remove it from the upgrade plan.
Regards,
Peter
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rjohnson11
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Re:780i SLI FTW "BIOS ROM checksum error" "error 41"
2023/03/16 01:20:44
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petergroft
Incorrect BIOS/CMOS Settings
Whether your CMOS settings got corrupted after a long period of no use or you messed up the BIOS settings yourself, bringing them to their defaults is quite easy. Simply access the BIOS and select the “Load Defaults” option. If your BIOS is not accessible anymore, you can perform a hardware reset by using the “Clear CMOS” jumper on the motherboard. Refer to your motherboard’s manual for instructions on how to perform this operation. There’s also a third way to reset the BIOS settings: unplug your computer, remove the CMOS battery, and simply wait a few minutes for the CMOS chip to remain completely unpowered; this will bring it to the default settings.
Unsuccessful Upgrade
If you come across a BIOS checksum error as a result of an upgrade that went wrong, try removing the newly installed components and testing them on a different machine to see if they all function correctly. You can also test the components in the computer you want to upgrade by installing one component at a time and see if the machine works correctly. Once you identify which part is the troublemaker, you can replace it with another component or remove it from the upgrade plan.
Regards,
Peter
You do realize that you posted to a forum thread that is 10 years old.
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