Properly clear cmos to acces the bios

Hello, my overclocking failed with my z77a-gd65.
The mainboard boots but there's no signal to the monitor (vga, hdmi, dvid) plugged into the mainboard.
And the usb keyboards don't work. Except the old ps2 keyboard that just turn the leds at the boot for 0,5 secs... Tried to press f2 but nothing does. I had the same issue one year ago. I think the daily overclocking wasn't good. And, ghe cpu was not fried. This time I tried 5 ghz with 2v. One year ago it was 4,5ghz and 1,3v. My board has a dead bios 1 one year ago and it still unusable. Last year, I still couldn't use the second bios for s.o.s. , I had to send to rma. Because the board was faulty and was under warranty. Should I again send it to the rma ? Or there's still a way to get access back ?

Quote from: techkid245 on 24-May-15, 11:13:54
5GHz and 2v holy cow? you sure you didn't damage the CPU or its built in GPU? have you tried with a dedicated card? or a different CPU?
My mainboard has a dead bios1, I have now only bios2 working.
But, when my mainboard were working, I still couldn't switch bios, because it didn't worked. And, even when I tried to clear the cmos, while the mainboard was running, this option didn't worked. Battery, button, jumper.
My mainboard was faulty when got delivered first time.
I had one year ago to send it to rma to unlock it. That's how the bios was dead, I also thought that my cpu died or even my ram.
I will have to buy an ASUS Z77 board soon, I hate msi.
That was a 185€ flagship board. No warranty (just 12 months)...
The only solution is now to clear the cmos by a way that someone knows, I remember that I tried to remove everything from the board, and then put everything back on it. Still nothing.
Now, I don't know what msi have done last year. Last year wasn't an overclocking fail because I let the board on 4.5ghz 1.3mv daily and one day it didn't boot. I got the same thing now. The board has at least the instructions to reset everything if it does not work. But it does nothing.

Similar Messages

How to Properly Clear CMOS...

Hey Guys,
I’ve checked the MSI manual and I’ve taken a look at the sticky/FAQ’s over here in the forum as well, and I wasn’t really able to find instructions on how to properly clear the CMOS (after a BIOS flash).
So first of all what’s the correct way to clear the CMOS?
1. Should I leave the power cord connected to the PSU and then press the “clear CMOS button” while the battery is still in the motherboard?
2. OR should the power cord be detached from the PSU and the motherboard battery removed and then should I press the “clear CMOS button”? (And if so, for how long should the batter be removed before connecting it back to the motherboard?)
Secondly,
I was looking over the steps in this guide (http://www.msi.com.tw/html/support/bios/note/ntfs.htm) and I’m not sure at which point I should clear the CMOS. After I’ve executed the flash command and the flash has been complete, it says in step 12. “Reboot your system when prompted.”
So should I turn off the machine right after the BIOS flash and then clear the CMOS… or should I reboot the machine right after the flash and then clear CMOS ?
Any help would be greatly appreciated as I really don’t want to FUBAR my board.
Thanks in advance.

Quote from: Brownbay on 18-June-05, 01:28:24
1. When I enter the flash command in DOS and the flash program completes the flash... will it say something like "flash successful" OR the only way I’ll know if the flash was successful is if after the flash I reboot and the machine posts?
You will have a message like 'Hit F1 to reboot' in principle all is well...
Quote from: Brownbay on 18-June-05, 01:28:24
2. I understood everything in the steps that you listed up until step 4. Should I press the orange "clear CMOS" button first (Now do I have to hold it down... press it a few times... or just press it once) and THEN remove the battery... OR should the battery stay in at all times?
While you press the button the battery must stay in it's place, it's is voltage that will clear the BIOS in a certain pin of the IC...
As for the time to press...could be 1..2..3 seconds, no time defined, as soon as you press the button the Bios is cleared...but give it 3 secs.
And it's not necessary to remove the battery at this point only in extreme cases.
Quote from: Brownbay on 18-June-05, 01:28:24
Finally, is it actually beneficial to clear the CMOS after flashing the BIOS? From what I’ve read... One of the main reasons to clear the CMOS after flashing to a new BIOS is so that you get rid of all the old BIOS options/commands that might be still lying around. So I can only see this as a good precautionary step rather than doing any harm to the motherboard, or causing the risk there of.
It is highly beneficial to clear the Bios after an update, because some settings could be somewhat out of place and mess up your discs or memory or even the processor...one never knows...it is always better to clear for ensurance.
Be well....

Clear CMOS did not reset BIOS Password

OK please read my whole post before telling me to try something I already tried.
I have a somewhat unique problem.
My system:
MSI 870A-G54
AMD Phenom II x6 1055T
Windows 7
I have a system password setup through BIOS. Every time I reboot I enter the password. I have not forgotten my password.
I was having an issue getting into the BIOS, I would push Delete and on the POST screen it would say "Preparing to enter Setup" then the system password would prompt. I would enter it and then Windows would boot, no BIOS setup.
This happened over and over. I got fed up and decided to nuke the problem. I powered down, unplugged and set the clear CMOS jumper, waited about 20 seconds, reset the jumper, plugged in and powered up.
Then I pushed delete again, POST returned an error "CMOS not set, date and time wrong, press F1 for setup F2 to load defaults and boot.
I Press F1 and there is the password prompt. Only now my password doesn't work. Enter (blank) doesn't work.
So a clear CMOS again, only this time I pull the battery out too.
Same result.
So I pull out the battery and set the clear jumper and wait 1 hour.
Same result.
So I set the CMOS clear jumper and boot the system (yes I know the manual says not to do this) Obviously no post, 1 minute later I reset the jumper and reboot.
Same result.
So I download the MSI HQ BIOS tool and flashed the most recent BIOS, clear CMOS.
Same result.
My system works fine and I no longer have to enter a password to boot to Windows, but I am locked out of BIOS.
Please tell me there is a solution.
Thank You

Got it! Was doing it wrong way leaving all spaces blank but it doesn't work because it always prompts you to enter your current password; so that's Current Password > "your current password" hit enterNew Password > "leave blank" hit enterConfirm New Password> "leave blank" hit enter and it prompts you to "CONTINUE with save changes?" > hit enter and Password changes from <SET> to <CLEAR>; SAVE & Exit and it's done. Thank you!

Does it hurt to clear CMOS without the power completely disconnected?

I noticed in this thread https://forum-en.msi.com/index.php?topic=31222.0 that it says to completely remove all power before clearing CMOS. all the user guide said was that the system needs to be powered off so to me that simply meant just turned off.
I have cleared my CMOS twice but both times it was not unplugged but simply turned off so did I risk damaging anything?

No it shouldn't damage anything it's just that at times some people seem to be unable to get CMOS cleared by simply turning system off and switching jumper/pushing clear CMOS button and it's recommended to pull the plug or if PSU has an on/off switch turn it off 1st.

P6NGM no longer boots after clearing CMOS?

Hi all, hope you can help me with this.
I got a new graphics card today (PoV 9800GT), I put it in my P6NGM (not exactly sure which version, uATX, it has VGA and DVI out, but no HDMI) and it didn't work, I would get the regular boot beeps but no signal. Onboard card was working fine, so I was scratching my head trying to figure it out
Thought I'd clear the CMOS to see if it made a difference, so I turned the PC off, moved the jumper over, left it a little while, turned it back on and... nothing. Fans kick up but I get no beeps and no signal even on the onboard card now.
Only thing I can think of is when I first bought the mobo I found out it doesn't support 45nm CPUs as standard, so my E8400 wouldn't work. I borrowed my brother's 65nm c2d, updated the bios and after that my 45nm chip worked fine. Can clearing the CMOS somehow revert the bios version or has this got nothing to do with it?
Many thanks.

Quote from: chef jeff on 25-March-10, 20:34:12
Really? How does that work? I see no supplemental power necessary. However, nowadays it all needs a 12v rail. Used to be most of it ran off the 5v rail, but no more. Can't know that unless you tell us. Too much guessing here. Please post your full system specifications.
Yes there's a few models out there now that have this, mostly on 45nm dies. Zotac do a similar one too.
Quote
The Point Of View GeForce 9800 GT Green Edition low power design reduces power consumption by up to 30% compared to a standard GeForce 9800 GT graphics card and no longer requires a supplementary power connector from your PSU, yet still delivers the same great 9800 GT-class performance as previous versions.
http://www.overclockers.co.uk/showproduct.php?prodid=GX-025-PV

Black screen Presario CQ62-219WM Clear CMOS jumper pins

About 2 years ago I bought my son the laptop for school from Walmart new. 6 months later, he brought it back to me from his Mom's and said it quit working. At that time, to check it out first, it booted to the HP screen only. Tried to get into the BIos with F2 but it was unsuccessful. Did the usual hard rested sequence with battery out,->unplug adapter-> Hold power button down 1 minute -> reboot with battery only and then with adapter plugged in. No change. Removing the RAM modules didn't make a difference. I replaced both Memory card to 2 GB X2 . Still wouldn't boot. Removed the HDD and replaced it with a known working drive from another 64 bit Wndows 7 OS and that didn't work. The original HDD is readable because it worked in the exchange. As a last resort, I built an Ubuntu live USB put that into the USB port on the presario (32 bit Ubuntu) and no success either. Can't reflash the BIOS. I decided that before I do anything more I would just take it back to Walmart as it was less than a year old and was directed to do so by HP (return it to where it was purchased). When I did, I was informed that because I was concerned of a motherboard problem, it was not covered under warranty and I was essentially stuck. I was recently unemployed so that was it. Went home, read some more and looked at the board and the capacitors visually and nothing grossly abnormal. I tried clearing the CMOS only by removing the battery and cold storing it for 24 hrs. Replaced it and still nothing. Read about the jumpers to CLRCMOS but I have looked on both sides of the board And there are no free pins, and nothing that Identifies anything to say clr CMOS or a variation of that. He wants to have his own back even though it has been a valuable learning tool. So .... Do you have a final suggestion other than go on eBay, buy a new board for $90, and quit trying to fix an unrepairable problem? He's going back to school and I still am out of work. Thank you in advance for any help you can give me.
Rick Perez, MD
Integrated Zen
Hale O'mana'o Biomedical Research
Arlington, TX

There are no clear CMOS jumpers on the board. My best suggestion is to use one of the motherboard repair services on eBay. They can identify and repair defective chips on the board using advanced equipment. If you can remove the board and ship them just that, I have seen the service for as little as $70. Obviously you can handle removing the motherboard.
http://www.ebay.com/itm/Hp-Compaq-g72-g62-cq62-Amd-Motherboard-Repair-reball-Service-/251300232694?p...
I have no affiliation with this person and there are several other similar ones on eBay. Most of the used motherboards you get on eBay have had a procedure like this done to them anyway.
If this is "the Answer" please click "Accept as Solution" to help others find it.

Clear CMOS ?

hello,
i'm gonna boot my pc for the first time, but not everything is installed yet, the hard drive, floppy drive and CD-RW aren't installed yet... . But still this is a very important first boot, because this way you can check the CPU and memory and graphics card, if they are installed properly and have them excluded for future troubles. my question is:
shoul i clear the CMOS (using hte onboard jumper) before booting it for the first time ? just to be sure there won't be any unlogical settings...with the consequensce that it won't boot...so clearing CMOS should be the right thing to do, right ?
thx
greetz

Hi hypetraxx,
No harm doing so Go ahead and clear 1st before installing anything as this is just a play safe method, in case your mobo have not got it cleared, but situations like this are uniquely rare
I usually don't bother to clear it before installing anything... :P but hey... everything still gets installed and works out fine and rock stable... :D!!!
All the Best... :D!!!

Wont boot unless clearing cmos

JBAT1
Ok here's the story in full.
Received K8T Neo2-FIR - was completely DOA along with a working 3000 90nm.
Received working K8T Neo2-FIR, got system to post after 5 hours of work (including 1.30 hours to watch Open Range whilst angered).
Post Showed 'invalid bios checksum' etc, the board now has 3.31 bios and still it will not post, will not even boot to be precise. It won't kick in fans etc UNLESS the jbat1 is set to CLEAR CMOS. Then the system works fine other than not retaining any bios settings.
I have now installed Windows XP Pro 64bit along with the 64bit drivers, unfortunately cannot use any MSI tools. I am going to update to the latest RC1 of XP64 pro as soon as Microsoft sort out the error in the download page/server.
Anybody got any clue to solving my problem? Oh and i can't run my Kingmax 3700 in dual channel, infact i dont think i can run 2 sticks in single channel either. (2x512MB).

550Watt PSU
22A at 12v rail
3000+ Winchester
MSI K8T Neo2-FIR
2x IDE HDD on IDE1
1x DVDWRITER on IDE2
9700Pro
1GB Dual Channel 3700
The PSU is going to be my next purchase, i have witnessed 2 Tagan UO2's explode recently so am going to go with an Akasa 460W. To be honest the current PSU is crap quality but testing the rails and amperes output actually hits 530Watts, on load i doubt it can hit this but still has enough power to satisfty 3xmore drivers and 6case fans in another SocketA machine which takes a lot more power at the cpu.
The ram has been in all possible combinations provided by the book but i can only get it to run 1 stick. I cannot run the LIVE UPDATE tool as im using Windows 64Bit. I've got 1 hour 26mins left on the download for the latest beta so hopefully i can run the tools tomorrow.
I have tried booting the machine etc with all items unpluged and select ones etc but no luck, it will only work if the jumpers are set to clear cmos. Maybe a multimeter on the jbat would reveal whether any current is getting passed through pin 1. Long shot and hopeless i know. Theres probably a reasonabe explanation.
I've now had 3 different Bios errors on post, so i think its just screwed it with the first boot on jumper2-3.
Soft reboots work fine (it hasnt stopped to tell me bios errors) just 'NO BIOS INSTALLED' at the sata raid post screen.

G33M-FI Fails to POST without clearing CMOS

Hello,
I purchased a new system with a G33M-FI mainboard in December. Everything worked great on the first boot, but the first time I restarted it failed to POST. I had to clear CMOS settings using the jumper. On the next boot I updated the BIOS to 1.2, restarted multiple times and everything worked fine for a while...
Now occasionally the system again fails to POST. This does happen on both a restart or a cold boot. Each time this has happened clearing the CMOS settings with the jumper does "fix" the problem and allows the system to boot again but it is VERY annoying. The problem also appears to be getting more and more frequent as time goes on (but maybe this is just my imagination). I have been leaving all of the CMOS settings at the default values so I don't think this is caused by something I did.
Any thoughts?
Here are the system specs:
MSI G33M-FI (bios version 1.2, default settings)
Core 2 Duo E4500 2.2G (800MHz)
Patriot 2GB Kit PDC22G6400LLK (2 sticks of 1GB, 800MHz 4-4-4-12)
Antec NSK3480 micro ATX case w/ 380w power supply
WD 320GB 3200ks SATA hard drive
Samsung sh-s203b/bebn DVD+/-RW sata drive

List PSU details, look for them over PSU sticker.
Try with just one memory stick alone in a 1st DIMM slot near to CPU socket and see if problem persist.
You may need to up memory vcore a bit,(in BIOS ==> "Frequency/Voltage Control", "Memory Voltage", Setup 2.0V and re-test)
PDC22G6400LLK:
http://www.patriotmem.com/products/detailp.jsp?prodline=5&catid=2&prodgroupid=38&id=317&type=1

Clear CMOS after every crash ?

After putting together a new system I have this problem.
When the PC freezes, and this happens instantly if I hit the "auto" button in the CoreCentre pannel it will refuse to boot up again. To unfreeze it I turn the main power off for a few seconds and upon turning it back on the MB comes to life for half a second and shuts down. This happens over and over, on its own. The CPU fan kicks in along with the blinky leds on the MB fan, and the power led on the front pannel comes up ..... only for half a second on, 1 second off, half second on etc.
Only way to cure is to clear CMOS ram and the system will fire up as norm.
Ideas?
Neo12SR
P4 3.0
Kingston Hyperx 500mhx 1g
Powercolor 8900xt
No overclocking or performance tweaks used.

Do NOT use the Auto Overclock button on "Core-Center" , as this Feature Raises your FSB until your PC Fails , and this is supposedly the Highest that you can Set your FSB to Upon Reboot, I dont Recomend Using Core-Center for ANY Hardware Changes, as it is still a project that is in the Works......Use "Clock-Generator" for Raising your FSB or Use the BIOS, and for Monitoring your Temps and voltages use "Speed-Fan".........Sean REILLY875

Z77 gd 55 clear cmos

After i press OC Genie botton
I can't enter MSI logo on screen
I shut down and press clear cmos
after i press clear coms It just boot loop nothing on screen
bios v.19
core i5 3570k

Quote from: flobelix on 17-July-13, 00:25:55
Properly clear cmos again: >>Clear CMOS Guide<< if no help and further assistance is needed follow >>Posting Guide<<
I already clear cmos but not thing happens.it's boot loops.

No posts after following instructions to clear CMOS

I have a K8MGM2-L mobo. I recently changed processors from AMD Athlon 64 3500+ (939) to an AMD Athlon 64 4000+ (939). My OS is Windows XP sp2. After the upgrade, my system kept locking with the error message: IROQ<NOT EQUAL>..... I was going to clear the CMOS and load the BIOS default, and then I was going to flash update the BIOS, but after clearing the CMOS per recommendation of removing the battery and temporarily moving the JBAT1 jumper from 1-2 position to 2-3 position for 15 min. then returning the jumper back to 1-2 position. It cleared the CMOS, but now nothing posts at all. What can I do now?!

Quote
FYI: Old cpu was accidentally removed when HSF was removed for cleaning and subsequently damaged.
In a worst case scenario, the board was damaged as well when that happened.
Quote
This was the standard build for Gateway's eMachine model T6532
Mh, sorry to say, but we only support MSI-Retail products in this forum.
>>OEM boards manufactured by MSI<<
Please contact Gateway for further help/advice in this matter:
http://www.emachines.com/support/product_support.html?cat=Desktops&subcat=T-Series&model=T6532
>Topic Locked<

Clear cmos jumper

P43 neo board (ms-7519)
Could someone confirm which is pin 1 on the clear cmos jumper. From the manual it looks like the pin nearest the heatsink. If this is correct the board was supplied with the link in the clear data position which seems strange to me.
Thanks,
Paul

Quote from: paulgul on 24-January-09, 00:39:00
P43 neo board (ms-7519)
Could someone confirm which is pin 1 on the clear cmos jumper. From the manual it looks like the pin nearest the heatsink. If this is correct the board was supplied with the link in the clear data position which seems strange to me.
Thanks,
Paul
Jbat1 is the clear cmos jumper, to clear cmos just shift the jumper to 2-3 and remember to switch back to 1-2 after you have clearing cmos, alternatively you can also remove the cmos batt
By default the jumper cap should be at pin 1-2(keep data) if no one has messed with it

KT6 Delta won't boot after clearing the BIOS

I have just put together the machine as per my signature and run into a few problems. The XP 2800 mobile is not recognised as such but as a XP1800 when I set the FSB to 133. Am I right in saying this CPU should run at 1.65 volts as it seems to wants to run at 1.75. I changed the V Core to 1.65 and it boots ok but when I tried it at 1.6 it did not want to boot, ie no video output. I no longer get the single BIOS bleep and the monitor stays on standby. This has happened before and I got it running again by clearing the CMOS and reseating the RAM but this time I have done the same and it won't boot. Is there anything else I should be doing please. Many thanks.
Having looked at the Socket A sticky I see that my diagnostic D bracket is showing 1,2 and 3 showing red and four not on at all which would seem to point at the graphics as being the problem.

Hello!
Voltages should be set to "CPU default" or similar. Your processor comes in different versions, try setting to 166 instead of 133. Always when changing processor one should clear CMOS, by powering off, unplugging power cable, and then move JBAT jumper for a short time, a minute or so.

Do i have to clear cmos after updating bios?

hi im about to update my bios to 1.9 ... do i have to clear cmos after bios update finish? and also clearing cmos is as easy as removing the battery for a while then putting it back in right?

in my opinion Clear Cmos should be always done after flashing,
to ensure that new BIOS will operate as intended
if you need see here for guide:
>>Clear CMOS Guide<<

Properly clear cmos to acces the bios

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