Help! CPU Usage @ 100%

Status
This thread has been Locked and is not open to further replies. Please start a New Thread if you're having a similar issue. View our Welcome Guide to learn how to use this site.

mAtcHz

Thread Starter
Joined
Jul 2, 2007
Messages
6
I'm using a laptop and when the laptop run solely on batteries, everything is normal, however when i plug the adaptor in, the CPU usage becomes 100% and the process that is causing it is "System". The system would display 99. I just reformat my laptop because of this issue as i thought it was some viruses or spywares but its not.

The adaptor and battery was also tested on different other laptops and it was working fine. I'm curious what could cause this problem, any help would be appreciated dearly.
 
Joined
Nov 22, 2005
Messages
367
a format may not always remove a virus or spyware. a format only hides information and allows it to be overwritten. avg is a good program to try. also it may also be a heating probelm with your laptop. if the processor is running hot then it will slow. it maybe worth checking for viruses and also making sure your laptop is not getting too hot
 
Joined
May 12, 2007
Messages
392
only thing I can think to do is try getting all windows updates. other than that it sounds like it may be a hardware problem since you reformated which kinda rules out viruses.

good luck
 
Joined
May 15, 2006
Messages
125
mAtcHz said:
...when the laptop run solely on batteries, everything is normal
To me, this is what rules out a virus (which can survive a format - but not an FDISK)

http://support.microsoft.com/kb/320345
CPU Usage Rises to 100 Percent If You Charge the Battery Slowly While the Computer Is On
On This Page
SYMPTOMS
CAUSE
RESOLUTION
Service Pack Information
Hotfix Information
STATUS
MORE INFORMATION

SYMPTOMS
While you are slowly charging the battery on a laptop computer while the computer is powered on, CPU usage may rise to 100 percent until you unplug the computer. This causes performance to be reduced, and prevents the battery from being charged.
 

mAtcHz

Thread Starter
Joined
Jul 2, 2007
Messages
6
sorry i forgot to mention that, even if i run the laptop SOLELY on the adaptor, the cpu usage is still @ 100%, and its still reads as the "system" using 99. it can't be any viruses because i've scanned all viruses and spywares using panda internet security already.

regarding the charging issue, even when my battery is full as it is showing green in colour, the cpu usage still reads 100% until i unplug my adaptor and run the laptop solely on batteries then everything will be back to normal..

oh ya, im using windows xp pro edition, if u guys still need any information please let me know.
 
Joined
May 15, 2006
Messages
125
When you say SOLELY on the adaptor, do you mean you are physically removing the battery and running off mains power?

edit:

And which Service Pack for XP?

http://support.microsoft.com/kb/328915
100 percent CPU usage may occur under some battery conditions
On This Page
SYMPTOMS
RESOLUTION
Service pack information
Hotfix information
STATUS
SYMPTOMS
After you install Windows XP Service Pack 1 (SP1), CPU usage may reach 100 percent under some battery conditions.
 

mAtcHz

Thread Starter
Joined
Jul 2, 2007
Messages
6
Yup, running off directly using the main power. Im using microsoft windows xp sp 2
 

mAtcHz

Thread Starter
Joined
Jul 2, 2007
Messages
6
physically or not i tried both. I think its the motherboard problem, i got it sent down to the service centre and it got fixed already. thanks alot anyway.
 
Status
This thread has been Locked and is not open to further replies. Please start a New Thread if you're having a similar issue. View our Welcome Guide to learn how to use this site.

Users Who Are Viewing This Thread (Users: 0, Guests: 1)

As Seen On
As Seen On...

Welcome to Tech Support Guy!

Are you looking for the solution to your computer problem? Join our site today to ask your question. This site is completely free -- paid for by advertisers and donations.

If you're not already familiar with forums, watch our Welcome Guide to get started.

Join over 807,865 other people just like you!

Latest posts

Staff online

Top