Hardware :: Motherboard Repair - Leaking CMOS Battery
May 13, 2011
I have a very old 386 AMD computer that stopped working. it woun't boot. I have noticed that the CMOS battery is leaking there is turquoise residue on the corner of the motherboard. Some of the copper traces seem darkened, I can't seem to see if the acid have etched through the copper traces. Does anybody know how to fix this, will a new battery fix it or is the turquoise residue able to etch through the copper traces? The battery is not the standard one. Its the green one on the picture: [URL]
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Feb 24, 2010
my cmos battery is dead , not worrying that much about it but the problem is ubuntu , it has trouble booting thanks to fsck , there is a bug herebut i cant boot , i get the following error # Superblock last mount time is in the futureand i cant boot , i can get it working sometimes , with allot of work , but normaly it just fails !i came to the conclusion that the CMOS time and date keeps reseting and so ubuntu thinks that the last time i booted was in the future (if this makes any sense) and fsck freaks
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Mar 9, 2011
In my computer with Ubuntu 9.10 the battery backing CMOS memory is dead (and replacing it is not an option). This requires from me to set up RTC time in BIOS each time I turn on computer (default date is from couple years back). When I don't set time, Ubuntu don't want to startup and it shows me fallowing message :
/dev/sdb1 : Superblock last mount time (Tue .... 2011, now = Mon ...200 is in the future.
/dev/sdb1 : UNEXPECTED INCONSISTENCY; RUN fsck Manually.
mountall: fsck / [842] terminated with status 4
mountall: Filesystem has errors: /
init: mount main process (840) terminated with status 3
Mount of filesystem failed.
A maintenance shell will now be started.
Is there any way to run Ubuntu without having RTC time set over, and over again in BIOS ? (It's acceptable for me not to have current time).
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Dec 2, 2010
I changed my motherboard battery last night, and now get "Read Error" on booting to Ubuntu, on dual boot system. This is the most frustrating thing in an otherwise great operating system. It is the second time I have encountered this issue (last time was a change of power supply). I fixed it last time after three days of re-loading Grub2 and playing around Grub 2 updates, etc. Fixed it eventually, but as usual, no idea of what eventuality fixed it. I think I found a web page buried deep in the 'net, which talked about device.map. Do you think I can find it again - not yet - day 2 searching for the answer... This is what the grub script tells us:
[Code]....
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Sep 14, 2015
I don't know if this should be a followup to my prior topic [URL] ....
Each of the pieces I've installed all have an "Alias" directive in the conf file to link the directory where they live to be present on my server. For instance, DotClear lives in /usr/share/dotclear/web/ and there is a directive
Code: Select allAlias /dotclear /usr/share/dotclear/web
that directs http://myserver/dotclear to that site.
Now, I've set up VirtualHost entries for my DotClear and Owncloud with their own hostnames.
Code: Select all<VirtualHost *:443>
ServerName myowndotclear.com
ServerAlias www.myowndotclear.com
DocumentRoot /usr/share/dotclear/web
[Code] ....
Something similar for Owncloud.
The problem is when I go to [URL] ...., I get to my mythweb site.
This is not so good. So, for the sites that have their own hostnames, I removed the "Alias ..." directive. Of course, now I can't get to the hosts by going to the primary site which is probably fine, but I also still get my mythweb since that doesn't have it's own virtualhost entry.
This doesn't seem like correct behavior. Is there a better place to put the "Alias ..." directive so that it only works from one site and not all of them?
I am also thinking I should just link the directories into /var/www/html, but I'm not sure that's a better solution.
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Jun 10, 2011
I'm still pretty new to the linux scene but kubuntu has been a great alternative to ubuntu (unity, ugh) until now.
It only started happening since i started messing around with play on linux but i dont think their related. I dont think its a driver issue either as ive switched between proprietary and default to no avail.
Basically after i log in, it takes over 3-6 minutes getting slower and slower before finally getting back to regular speed. So after a few occurences i decided that immediately after startup i went to system monitor and sure enough;
There is a process title "akonadi_contact" that is slowly growing in memory. There are also multiple occurences of it (usually between 6 and 9). they keep growing usually to the 500000k mark in memory usage before turning gray (swap storage??) and then eventualy the end.
What is "akonadi_contact"
How do i stop this from happening.
Is this a memory leak?
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Nov 10, 2010
i know i asked earlier but i got my usb to be mounted on a different fedora distro. how do i now find my documents or repair it? also how do i add in a repair line if possible?
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Mar 2, 2010
getting back to our laptop, the stability window is ~3.2V. Meaning that when you operate the battery above this the electrolyte is oxidized on the positive electrode and reduced on the negative electrode. Remember that we only want to oxidize and reduce the active materials and don't want to do anything else. All these reactions other than the ones we want are called side reactions and these are really bad for the battery. The nominal voltage of a laptop battery is 3.7 V which means that something bad wants to happen as we use the battery.So long story short, stuff (e.g., passive layers and poor kinetics of reactions) happens and things are not as bad as they seem and you can increase the voltage up to 4.2V without bad things really happening. All chargers for Li-ion cells today cut the battery off when it reaches 4.2V. What you have to realize is that at 4.2V, these side reactions are present in finite amounts and start to chemically kill the battery, but its not that dramatic.
Operating to 4.1V makes things better and extends the life, 4.0 V is even better and so on. So why don't battery manufacturers cut the voltage off at, say, 4 V to get better battery life? Because every time you cut this voltage down you decrease the capacity of the battery and its run time. The 4.2V cutoff is a compromise between good run time and decent (read "not pathetic) life.On the other hand, if you charge the battery and then pull the plug (so to speak), the battery discharges some, the voltage drops, and these reactions become less of a problem and your battery life goes up. So the best things you can do is to charge the laptop (or cell phone, camera etc.) and once its charged, pull the plug. Your battery will thank you for it.As a matter of fact, if you own a Lenovo Thinkpad, you can actually change the state of charge to which you charge the battery using the Battery Maintenance utility. You can change this from charging to 100% state (where the voltage is 4.2V) to 90% so that your voltage is less. You lose some energy is doing that, but atleast you can change it to 100% when you need battery power and put it back down to 90% when you can plug in. I wish my Mac has the same feature.
I typically use the battery for a while (say 1/2 hour to 1 hour), then plug it in and wait to fully charge it, then I pull the plug and use it again for 1/2 hour to 1h and then I repeat this. Takes some getting used to and I forget to do this, but I try.
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May 1, 2010
Just installed 9.10 followed by a 10.04 upgrade (wouldn't work as a 10.04 clean install). The install and upgrade all seemed to go well.
But now when booting I get a message saying "checking battery state" and then it boots no further. This is a laptop without a battery installed, running permanently from the mains through the charger.
How can I disable this check so that the laptop will still boot without a battery fitted?
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Oct 7, 2010
I have a lost password on an Intel DG33TL motherboard which I guess is only resetable by shorting the right jumpers on the board. I have two questions regarding that:
1- Is there any way I can reset the CMOS password through the CentOS? Or is that a thing of old motherboards where one could reset them through the OS?
2- Currently I have two hard drives installed in Raid1 (mirroring each other) through the motherboard RAID (not the through any RAID card or through CentOS). RAID was made prior to installing CentOS. So, would resetting the jumper mess up the whole RAID? I don't want trouble and I can leave without the password but it's good to know if need arises.
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Jul 22, 2011
I want to find ou t when you boot it can you press any key 0r keys to get to CMOS. Also if I wanted to have both win95 and ubuntu how would I do That?
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Jan 28, 2011
I want to find ou t when you boot it can you press any key 0r keys to get to CMOS. Also if I wanted to have both win95 and ubuntu how would I do That?
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Feb 12, 2011
I am having a problem getting my Slackware 13.0 to accept a timezone cmos setting change. My cmos was set to local time and my Slackware was displaying the correct time as EST. Cmos was set localtime to be compatible with dual booting Windows I have now removed Windows and replace it with Ubuntu. Now, Ubuntu wants the hardware clock to be UTC, which is the norm for unicis. SO, lets make Slackware treat the hardware clock as UTC.
I go to /etc/hardwareclock make these changes.
utc
#localtime
I reboot setting cmos to UTC, but now when I come up Slackware displays UTC and calls it EST. I go to the date/time app under the system xfce menu, but all it says it is set to UTC (EST) and change from the list below. The list below only has UTC listed. So, now how do I get it subtract the necessary five hours?
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Jan 20, 2010
I installed Ubuntu 7.10 on my desktop a month ago before I left my apartment for winter break. It worked beautifully for the week I used it, but now the computer won't boot. I'm using the ubuntu live cd right now to type this. I can't install it over my last hdd because apparently both of my hdds aren't bootable. I unplugged the computer for the month I was gone and the BIOS date reset to 2004. I'm not sure if that affected anything, whether I need to replace the CMOS battery? The computer was built in 2004 so I'm thinking the battery might be old. Basically the computer functions on the live cd, just won't boot from either hdd.
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Apr 3, 2010
Searching syslog to diagnose other problems I encountered this line. As near as I can tell it has nothing to do with any problem I have.
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Jul 23, 2009
I was thinking of physically removing the hard drive and use the computer only with a liveCD for security. But is disabling the hard drive in the cmos just as secure, or does software exist that can still access the hard drive?
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Dec 7, 2008
The suse 10.0 64 bit partition on my box stops booting when it is setting up the cmos clock. The suse 10.0 32 bit partition boots up without a problem. I never had a problem with the suse 10.0 64 bit partition up until now. Is it possible to fix the problem using puppy linux and editing a configuration file? I do not think it is a hardware issue if the other partition on the drive boots up. Would puppy linux be a good way to backup files from this partition or can I mount the partition using the 32 bit os?
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Aug 31, 2010
I have a 3 year old laptop with the original battery and its drained pretty bad. The "Battery may be broken" popup was driving me insane and this is how you disable it, in case you are in the same situation as me. Open terminal
Code:
gconf-editor
Drill down to...
apps --> gnome-power-manager --> notify
uncheck the low_capacity checkbox. This should disable the popup for you if your battery has little life left in it. Now, if any knows how to disable the Avahi popup, let me know.
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Apr 29, 2011
Basically my problem can be neatly summed up as the problem described at both here and here. I can only presume it's a rather uncommon problem to do with a particular hardware setup since I can't find any widespread bug reports of it, but it is (on my system at least) highly replicable. I can reboot my system from Natty and it either one of two scenarios. It can reboot the system (as first asked) then reboot again in the middle of POST and splurge an error about interrupting POST at me (and keep giving me this error every reboot till I go into the bios and resave some settings).
Alternatively, it can get all the way into grub, where I can dual boot into Windows, windows will get some arbritary point in (usually the login screen give or take 10 seconds) and then reboot at random. It's not even a windows crash since I've disabled auto-reboot.I'm not sure what's causing it but I can only presume it's something at the kernel level, since I'm not sure anything else would have the kind of power needed to interfere with the system at an 'outside the OS' level. As such I wouldn't have any idea how to go about fixing it, but I can hope that someone here may be able to point me in the direction of potential settings I can change (probably BIOS I guess) that might aleviate the issue till a fix is found.
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Jul 13, 2010
Is there any USB mouse battery indicators for Ubuntu that can tell me the battery level of my Logitech USB mouse? (something like a laptop battery one) I want to add it the panel.
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Mar 17, 2011
I am currently running Fedora 14 on a 32-bit AMD XP motherboard. My plan is to replace the motherboard w/an AMD 64-bit (multicore, prob'ly) version (most likely w/a different h/w architecture) and I'd like to make sure my current applications and configuration (if that makes any sense) are moved en masse to the 64-bit version.
Is there an easy way to do this? What are my "gotchas"?
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May 5, 2010
I used my old RAM in my new PC. The RAM was rated for 533mhz but the motherboard could not run it below 667mhz. Today I was using tdfsb (3D file system browser) in my music folder (which has a lot of files/folders) the PC froze. After 20min I pulled the plug and it started back up properly. After some updates later that day, I tried to reboot. All it did was shut down and light up the fanlights instead of restarting. I tried resetting the battery. With the old motherboard, bad RAM would cause beeps and I hear no beeps. The board is a Gigabyte GA-MA785GM-US2H. The CPU an Athlon II x2 255. RAM failure would cause beeps or not.
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Apr 23, 2009
I'm making a simple file server for a small business, running OpenSUSE with raid 1 HDD. Can anyone suggest a good motherboard? I don't really care if it has the raid controllers on it, but if not, a good raid controller?
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Jun 29, 2011
I recently purchased a motherboard but overlooked that there are no ide or fd plugs on it. What I am wondering is, since the solder points are on the motherboard, can I solder some plugs on or is the controller disabled/non existent?
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Sep 2, 2010
I have a home server running Ubuntu 10.04. I want to replace the motherboard and CPU without reinstalling the OS. I read a long time ago that this would sort of work on Windows XP, but with stability issues. However, I have a hunch that on a modern Linux there shouldn't be any problems.
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Nov 21, 2010
Recently my motherboard has been dying and the warentee is gone so I decieded it was upgrade time. I need to know if there is anything special I need to do for Ubuntu to work on my computer after the new hardware is installed. I currently have a 32 bit motherboard and processor and am switching over soon. GRUB 2 handles my boot and I know I have some extra stuff to do on windows 7 but I was wondering what I needed to do to get my computer to boot up after the upgrade.
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Mar 19, 2011
I just upgraded to an ASUS P8P67 Pro (Sandy Bridge) motherboard and moved my old hard drive to the new case. Windows 7 and XP are running smoothly. Ubuntu, however, doesn't detect the Ethernet adapter or doesn't have a suitable driver. ASUS doesn't offer Linux drivers for this motherboard. Is there a way to make Ubuntu revert to a default, working driver?
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May 3, 2011
I have tried installing both 10.10 and 11.04 on a older motherboard . The install seems to go smooth till it gets to the "who are you" screen and then there is no forward button lite up.
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Jan 17, 2011
I bought a new motherboard and put this hard drive and 2 others on it. This hard drive has Kubuntu 8.04, one other has windows 7, and the 3rd one has Mandriva 2010. I re installed Mandriva 2010 so it would recognize the other 2 hard drives (10 hours later). And even though GRUB sees all 3 hard drive I cannot boot to Kubuntu 8.04. I had to put Mandriva on the one because it has a complete GRUB bootloader whereas Kubuntu does Not So is there a way to get this hard drive to work on my new motherboard?
I had to put together another tower with the old mobo to get to where I am now.
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Jun 2, 2010
Xeon cpu 2 cpu motherboad.
I have following questions:
1) Can I run single CPU first? Add another CPU later when in need.
2) There are 2 sets of dimm. Each set serves its own CPU, I suppose. If running single CPU can the RAM on the 2nd set of dimm be detected and used?
3) What will be the comment on xeon vs amd, same spec (apple to apple)?
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