Bios checksum error

have two kt7 pro motherboards on differnet machines and both are having exactly the same problem. I originally had a problem wiht booting my hard disk, so I tried to boot from an old win 95 HD and put my win 2k HD as a slave. This is when I stated to get problems with my motherboard. During the POST, I get a Bios Checksum erorr, cannot find Drive A. At this point the machine stalls with the diagnostic LED showing that I it cannot find the memeory. However, I have tried numerous banks of memeory so I am confident that this is not the problem and have tried resetting the bios (by removing the battery and moving the jumper). This is happening on both machines, with or without any other hardware connected.
Please can anybody shead some light on this frustrating problem.
Thanks
Aaron

Hi!
I don't want to insult you, but...
Are you sure you haven't connected the floppy drive ribbon cable upside down. (Remember, the lump s/b directed towards the bottom on floppies, i.e. -----¬_------, not ______¬______ like on IDE devices.
Could try disconnecting the floppy drive (including power) and disabling 3.5" floppy in BIOS.
AMD 3000+ Barton
Abit AT7 Max2
1Gb Kingston 333Mhz
ATI Radeon 9700Pro AIW 128Mb
2x 120Gb SATA Seagate Barracuda V

Similar Messages

K7N2 - Bios Checksum Error - But wont load program to flash bios

Hi there, my computer restarted itself due a problem with windows (kernel dll or something arather), since then it wont boot at all, beeps twice and says Bios Checksum error.
Now i understand this means the Bios is corrupted and i need to re-flash it. I looked at instructions on how to do this and followed them to the button. However, it wouldnt load a boot disk at all so i reset the Cmos using the jumpers.
After reseting it would now read the disk (i can hear it make noises) but it would only get as far as starting to load the award flash program, i.e. it just says "Starting..." but then the disk will stop reading at it will just hang then doing nothing.
I've tried numerous disks and numerous bios version numbers (but obviously the right ones for my motherboard: K7N2 Delta series Ms-6570), and i've tried using different types of bootdisk all with the same result.
Is there anything else i can do? or is it pretty much screwed and i have to take it back to the shop i bought it from and request a new bios chip (technically its still under warranty, as its only 10 months old but would this be covered with the warranty?). I can foresee taking it back being a huge hassle so if there is anything i can do to avoid this, it would be greatly appreciated.

I never cleared the cmos with the power on. Sorry i didnt make it clear, but yeah i always made sure the power was completely out. I left the battery out last night too, but still no change. All cables are on right, and I'll try taking out all the cdrom and cd when i get home. I cant get into Bios (pushing del key). all i get is two beeps and boot block telling me that there is a Bios Rom Checksum error (again, sorry i wasnt being very clear).
I think it might be pretty much stuffed. I'm tempted just to go to the store and buy another one as they aren't too expensive and probably not too much of a price difference from getting a new bios chip and having to wait for 2 weeks while it gets delivered. But then again maybe i should just be patient and save myself some money.
Hmm, could it be due to bad RAM? I'll try swapping it with my brother's and see what happens. It's kind of ridiculous that they give the same generic error message for a multitude of different problems, someone should fix that.

'7-error BIOS checksum error while installing HP update

I received an update from HP tonight 'HP Consumer Desktop PC BIOS Update' everything went well until the install start when I received the followinf mewssage '7-error: BIOS checksum error' and everything stoped -- what is the problem and how do I correct it so I can successfully install this update?

They are all part of the Checksum Error problem. You may also be interested in this:
https://www.youtube.com/watch?v=Pdp_L5IxaNI
All computers whether laptop or desktop have a CMOS batterie.
Please mark my post as SOLVED if it has resolved your problem. It helps others with similar situations.

HP Model #A6000n Bios Checksum Error after Bios Update!!

I performed the Bios update posted on Hp's website...After the re-boot, all I get is this error, "BIOS Checksum Error," and then the black screen looks for a bootable disk on floppy (this computer has none), then, it looks for a bootable disk on the CD drive. Now, I have talked to HP support and they say I need to order the recovery disks. Can someone send me a bootable file that I could burn to CD for this model machine and get it up and running?? I have an older machine here that would allow me to make a bootable CD but, I have no idea where to locate some kind of BIOS update and or, bootable file to flash the BIOS. I am so mad that HP has wanted me to purchase this CD recovery program just to get back into Windows Vista. But, I am not sure what to do since the BIOS update must have been corrupt when I flashed the ASUS motherboard. This computer is my Aunts and she failed to make back up restore disks and now I am lost as to getting this thing up and running...Please help!!
Thanks!
This question was solved.
View Solution.

Like I said, if you have a floppy it is easy, especially since the computer doing the floppy is XP.OK, here we go.
1) place floppy disk in drive
2) open My Computer and right click on the floppy drive
3) pick format from the menu that pops up
4) put a check mark in the box next to the "Create an MS-DOS startup disk"
5) click "Start"
6) when completed copy the awdflash.exe to the floppy
7) right click on the BIOS file from HP
8) move the mouse cursor to 7-zip and then click on "open archive"
9) double click on the folder icon in the new window
10) right click on the ROM file - in this case 513.rom
11) pick "copy to" from the menu and browse to the floppy
12) when that is complete, the floppy should be ready to work
13) Move the floppy and ribbon cable to the Vista computer. It does not need to be mounted but make sure it is not touching anything metal ( a stake of books will do fine) and connect the ribbon cable and power to the Vista computer's motherboard and power supply (of course this is done with both of the computers off and unplugged)
Now ready to go on the Vista computer. When the power button is pressed on the computer, there will be an HP splash screen come up. From that screen press the "Enter BIOS" or "Boot setup" key as indicated. Forgot to ask if this screen comes up in previous posts. If this screen does not show then this is going to be much harder.
When in the BIOS, look for boot order and then set it to boot from the floppy first. Save choices to exit.
14) Reboot - should end up with a flashing cursor in the top right corner
15) type AWDFLASH 513.rom /py/sn/cc then hit Enter
16) when and if it completes power down and remove the floppy drive from the computer
That should do it. If it does not work or there are problems come back with an explanation of what did happen.
Of course, doing all this at your own risk. I am just trying to help.
{---------- Please click the "Thumbs Up" to say thanks for helping.
Please click "Accept As Solution" if my help has solved your problem. ----------}
This is a user supported forum. I am a volunteer and I do not work for HP.

URGENT HELP!! BIOS Checksum Error, Floppy?

When I boot up, I get a error saying "BIOS Checksum Error"
and it asks for a system floppy disk
I cannot get any further.
I tried flashing the bios, but this does not work.
Please help!!!

oh, yes thats what I meant.
sometimes the it would not read the floppy
somtimes it would hang while booting the floppy
sometimes I could get far enough to run the flasher utility but it would hang
finally I was able to get far enough to flash the bios, then everything worked fine.
I guess it just got corrupt some how.
I set my boot floppy to load zero drivers and do nothing.
and I set it to run the flash on bootup.
I think there is a time limit or something before it hangs and gets stuck.
I also moved my ram from ddr2 to ddr1, that also seemed to help it get farther.
I just kept trying for like two hours until it worked.

MOVED: K7N2 - Bios Checksum Error - But wont load program to flash bios

This topic has been moved to AMD nVidia/AMD/SiS SocketA based board.
K7N2 = nVidia nforce2 chipset = AMD nvidia SocketA forum
https://forum-en.msi.com/index.php?topic=73760.0

I never cleared the cmos with the power on. Sorry i didnt make it clear, but yeah i always made sure the power was completely out. I left the battery out last night too, but still no change. All cables are on right, and I'll try taking out all the cdrom and cd when i get home. I cant get into Bios (pushing del key). all i get is two beeps and boot block telling me that there is a Bios Rom Checksum error (again, sorry i wasnt being very clear).
I think it might be pretty much stuffed. I'm tempted just to go to the store and buy another one as they aren't too expensive and probably not too much of a price difference from getting a new bios chip and having to wait for 2 weeks while it gets delivered. But then again maybe i should just be patient and save myself some money.
Hmm, could it be due to bad RAM? I'll try swapping it with my brother's and see what happens. It's kind of ridiculous that they give the same generic error message for a multitude of different problems, someone should fix that.

Dell 7520 (15r SE) BIOS checksum error

Hi everyone,
After sucessfully upgrading my laptops BIOS from A09 to A11 yesterday it booted normally but today it just beeps (single beep every few seconds -> ROM checksum error...).
Is there a recovery method like the Phoenix Crisis tool or such to recover a broken BIOS or can I flash the BIOS using an SPI-Flash programmer?
Thanks,
Jakob Riepler

More on Dual video laptop problems
-http://helpx.adobe.com/premiere-pro/kb/error---preludevideo-play-modules.html
-http://forums.adobe.com/thread/1001579
-Use BIOS http://forums.adobe.com/thread/1019004?tstart=0
-link to why http://forums.adobe.com/message/4685328
-http://www.anandtech.com/show/4839/mobile-gpu-faceoff-amd-dynamic-switchable-graphics-vs-n vidia-optimus-technology/2
And GoPro http://forums.adobe.com/message/4486784
-and http://gopro.com/software-app/cineform-studio/

BIOS checksum errors

I am running Fedora 14 on my ThinkPad SL500. The dmesg command indicates that there are checksum errors in the BIOS:
$ dmesg | grep checksum
[    0.164256] ACPI Warning: Incorrect checksum in table [SSDT] - 0x4E, should be 0xDD (20100428/tbutils-314)
[    0.167894] ACPI Warning: Incorrect checksum in table [ATKG] - 0x82, should be 0x53 (20100428/tbutils-314)
[    0.169753] ACPI Warning: Incorrect checksum in table [SSDT] - 0x37, should be 0xC7 (20100428/tbutils-314)
[    0.209744] ACPI Warning: Incorrect checksum in table [SSDT] - 0x4E, should be 0xDD (20100428/tbutils-314)
I have updated the BIOS to the version of 12/16/2010 and then reset the BIOS settings to the manufacturer defaults and still recieve these warnings.

welcome to the forum!
are you having any issues with ACPI events like suspend or hibernate?   if not then i wouldn't worry about it at all.
even if the checksums are incorrect it's unlikely that these are causing any problems in your system.   if you are having issues though please report exactly what you're experiencing with a description of the steps necessary to reproduce the issue(s).
ThinkStation C20
ThinkPad X1C · X220 · X60T · s30 · 600

Award BootBlock BIOS v1.0 / BIOS ROM Checksum Error

I tried to flash the BIOS through windows and got a checksum error, then made the mistake of rebooting the computer. Now I get the Award BootBlock BIOS v1.0 / BIOS ROM Checksum Error. It asks me to insert a floppy with the BIOS, which I have done based on the directions I've found in this forum. The following is on the disk:
autoexec.bat, which contains the command AWFL859G.EXE W7030NMS.180 /py /sy /cc /cp /cd /sb /r
AWFL859G.EXE, the bios install program
W7030NMS.180, the latest bios version for this motherboard (K8N Neo Platinum)
When I boot up it detects the floppy drive, starts to run it, and then the entire machine shuts down. I've disconnected all the drives except for the floppy, but no dice. Any suggestions would be greatly appreciated, and thanks!
Mjolnier

Quote from: syar2003 on 26-December-05, 07:35:31
See .. :
What options do I have
Do you know someone with a NF3 250GB mobo you can bring the PLCC bios chip over and hotflash it in that persons mobo .
I hotflashed my Neo1 chip in a Abit Nforce2 NF7-S motherboard , criteria is that you must have a motherboard running award 6 bios and 4Mbit chip
and use that motherboards flasher .
So my hotflash in NF2 mobo had to be done with NF2 chipset flasher (awfl820) and /f switch .
I ended up giving up and buying a new board, the MS-7032 K8T-Neo V. I swapped it out and no issues, and it was cheaper than sending back the one I had to get it reflashed. Still, there ought to be a better way to get something like this fixed. I read that some board manufacturers are now putting a backup bios chip that can't get overwritten on their boards, so if the working one gets lost it automatically gets re-flashed by the original one. Hope MSI does that soon.
Mjolnier

K9VGM-V motherboard for AM2 BIOS ROM checksum error

Hi everyone, i need some help about my comp.
When i turn on the computer, it just show
BIOS ROM checksum error
Detecting floppy drive A media
INSERT SYSTEM DISK AND PRESS ENTER
When i insert the boot disket, it just apper to show
INSERT SYSTEM DISK AND PRESS ENTER all the time.
Is there something wrong with the boot disk ?
I also insert the award flash program and recent BIOS for my board in the disk,
but it do not work.
At the top of the screen it show
AWARD BOOTBLOCK V1.0
I also try to reset the bios by the jumper, remove the battery and reinstall all the component attach to it.
It dont work either.
Please, i need some help now.

Read Moan Guide 1st.
That message suddenly arrive when you turn ON PC? (You haven't tryed to flash BIOS or something? )
Remove power cord from the PSU then leave one memory stick only in 1st DIMM near to CPU socket and do Clear CMOS
Retry to boot.

790FX-GD70 winki Bad bios checksum (please help!!) unresolved

I have the 790FX-GD70 winki edition motherboard only for a few weeks, then i went on holiday for a week and when i came back and started up the computer it came up with the error:
Bad BIOS checksum. Startin BIOS Recovery ...
Checking for USB Devise ...
Reading file "A7577AMS.2xx"
but then it does nothing, iv tried puting the bios files for the winki edition and the normal edition onto a USB pen but it just comes up with that error and doesnt get past it.
My Specs Are
AMD Phenom II X4 955 Black Edition
790FX-GD70 Winki Edition
Sapphire Radeon HD 4890 2GB Vapor-X
Kingston HyperX Triple Channel Kit - memory - 6 GB ( 3 x 2 GB ) - DIMM 240-pin - DDR3
Western Digital WD10EADS Caviar Green 1tb SATAII 32Mb Cache
1TB Wester Digital
Ezcool 700W PSU
Iv been trying to fix this for a week and nothing will work.
cheers

Quote from: eminem2o4 on 07-October-09, 05:13:05
i just tired clearing it with the jumper(you dont have to press the button when you swich the jumper do you?) and it is still coming up with the same error
Bad BIOS checksum, Starting BIOS Recovery
I really dont know what to do?
and could any1 give advise on good 6gb AMD RAM?
cheers
Quote
and could any1 give advise on good 6gb AMD RAM?
Such combination is not recommended in AMD systems as you must use 2x2GB and 2x1GB memory stick to obtain it.
Which is not good idea[mixing memory sticks]
For best results and optimal performance, use 2x matched memory sticks only.
Quote
I really dont know what to do?
Go to reseller to sort for you.
Let him try with different memory sticks{AMD Tested}.
The message may gone by itself, often such fake message can come from bad or not compatible memory stick.
Quote from: Hans on 08-October-09, 01:14:27
Make sure to change the extension to .ROM.
Nope, system is expecting original file name A7577AMS.200 as Bas mention as well.
Quote from: Hans on 08-October-09, 01:26:19
Ah, I see. Thought it needed a .ROM, but I'm obviously wrong.
But if we already knew this, what's this whole topic about then?
Get the file on a stick and make it recover. Can't be that hard... ???
Quote
Get the file on a stick and make it recover. Can't be that hard... ???
I would suggest to try with AMD regular memory stick 1st before attempt any BIOS recovery.
Else he really can kill his board, while attempt to recover healthy BIOS{Too possible to be memory error and not BIOS failure
[bad|not compatible memory stick can produce the same fake message.]
Also BIOS hardly can corrupt to this stage by itself, he tell never touched the BIOS:
Quote from: eminem2o4
and no iv never tried to flash the bios before, and no1 was near my comp when i was away

CMOS Checksum Error on MSI 785GM-E51

Hi, I have 2 years old MSI 785GM-E51. Approximately 2 - 3 months ago, my PC just go hang without any reasons, even the mouse / keyboard won't respond to anything.
After I reset, sometimes it's fine, but sometimes it's hang again, the interval is random. Sometimes it even hang when in the POST or when i enter BIOS setting.
After several restart, it's sometimes gives me CMOS Checksum Error, so I decided to reset the CMOS using jumper method. After that my PC just works normal.
Until a week ago, my pc start to hang randomly again, the symptom is similar but this time sometimes it's not hang, but the PC just restart immediately with black / white / blue random pattern
displayed momentarily on the screen. And it always display CMOS Checksum Error. I already tried reinstalling Windows, and updating BIOS via flash disk from Live Update 5, no use.
I already tried to plug out my VGA and using the onboard one, still crash / hang randomly. I also test Memtest overnight with passing 11 pass without error.
Is it my motherboard already dead? or it's my PSU? CPU?
Here is my complete specs:
AMD Phenom II X4 955BE
MSI 785GM-E51
DDR3 Dual Channel 4GB RAM (corsair, forgot the model)
Radeon 5770
WDC 1TB
WDC 1.5TB
Amacrox Free Style 650W
Thanks in advance.

Quote
Yesterday i desperate enough and change some BIOS settings, and
surprisingly, the CPU is much cooler!
Try entering bios, hitting f6 for optimized defaults then save and exit. See if problem persists.
Quote
As far as I remember, no, the crash / hang time i remembered is when POST / boot / startup / browsing / install app / playing games / copy file.
And one more thing, when it hangs, it really hangs, not just the windows, sometimes it even not respond to reset button, so i have to power it off. But sometimes it respond
to reset button, but with quite a long delay, it could half a minute i think.
Have you tried re-seating the cpu,memory and all of the power connectors etc?
What are the amp ratings on the 12v rail of the PSU? I found this on thier website but dont have time to dig furthur: Quote
4-Channel 12V Rails Design
Although the VGA you list only needs 24a on a 12v rail.
Quote
what's cpuid / ram timings / spd? where i can look at it?
http://www.cpuid.com/
When the program opens, take a screen shot of the tab that describe how your ram is running, It will show the current timings,speed, single or dual channel. Also take a ss of the spd tab, which will show the jdec standards that apply to that ram and the xmp profile. Then post the SS's to imageshack or the link and link them.

HELP - Boot Checksum error

when i boot (or try to) i get an error that says checksum error system defaults loaded...and then i can get into bios...after i restart the computer just spins fans and nothing else happens...i dont understand this because i just built two identical computers and one of them works...my psu is 400w...
mobo - k7n420
cpu - athlon xp 2100+
psu - 400w
ram - 128ddr kingston (Value bleh...)
geforce 4 4200
turtle beach santa cruz

ya - but half the time i cant get into the bios...
the leds in the back are on chipset initializing...and it just freezes there...
i dont get this i built the identical computer for my cousin and his works perfectly... :(

Cmos checksum error

Getting cmos checksum error - defaults loaded press f1 to continue. Pc boots into windows and seems to work OK. Don't seem to be able to get rid of this message though at startuop. Any ideas, it's anew board, the bios hasn't been updated the bioard is untouched?
Thanks............ Please help!!

Done all you mentioned, did select load defaults, save and exit thinking that would stop the checksum message but still it's ther. I just noted that if I keep the PC plugged in to the mains however the meesage does NOT appear on reboot. However if I unplug and they plug back in to the mains and switch on the message returns, could that point to faulty Lithium battery?

Biosrom checksum error

I needed the bios update for a Compaq Presario SR5019UK to fix a problem with the computer namely blue screen issue (0x5C) when resuming from Hibernate mode and black screen issue when resuming from Sleep mode. So I downloaded the bios update and followed the instructions. Very easy just double click the file - but on rebooting I have the message below :
Award BootBlock BIOS v1.0
Copyright (c) 2000. Award Software, Inc.
BIOS ROM checksum error
Detecting floppy drive A media
INSERT SYSTEM DISK AND PRESS ENTER
As you can see the bios is corrupted or toast.
So I rang HP as I don't know if I can fix this and they said the machine is to old to fix and basically swallow it!..What there saying is if I cannot do a system restore then hard luck but I've explained the computer cannot do this at the moment as it doesn't know what to do with the hardware because of the BIOS corruption. Swallow this...I don't think so!!!
Firstly what are my options for fixing this?..as I understand I have to reflash or replace the chip - which I have no means of doing.
What is your opinion on downloading a program from a website and that causing a corruption or replacement - would you swallow this?
I've given HP the option of fixing it but they wont cos of the age. {Content Removed} I just want them to fix or replace the machine.
What do you guys think?
Compaq Presario SR5019UK (at the moment a very expensive door stop)
Windows Vista 32bit
I've have a Computer Engineering degree so don't worry about your explanation

Sorry, but HP isn't the only company that would handle this situation this way. You have a six year old machine that is no longer supported and no longer under warranty. No company has the resources to maintain support for older products, especially when new ones are rotated in about every six months. I know this doesn't make you feel warm and fuzzy inside but these are the cold hard facts.
Since this is a peer-to-peer user supported forum and most of us on this don't work for HP, I can only give you my opinion and advice.
*****EDIT*****
Since you resolved your issue without my assistance, I have retracked the steps I listed to download the BIOS and flash it from a floppy via the "Award Boot Block".
Congratulations and good luck!!!
Please send KUDOs
Frank
{------------ Please click the "White Kudos" Thumbs Up to say THANKS for helping.
Please click the "Accept As Solution" on my post, if my assistance has solved your issue. ------------V
This is a user supported forum. I am a volunteer and I don't work for HP.
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Bios checksum error

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