CPU usage spikes

Shelby, welcome to Techspot. You really should start a brand new thread about this issue. The thread here you posted in is rather old.

I have had the same issue and have been following this thread and tried it all,

disconnected USB, removed the battery, installed most software, It still spikes to 100% every 3 sec.
I am going to install McAfee as it is a memory hog.
specs. are Inspiron 6000, 2 gig ram, 80HD, 250 USB2 external, OS XP spk2,

This is driving me crazy

fwh

i am also having this problem. the weird thing is that when i have my linksys wireless adaptor plugged in that is the only time it does it. when i pull it out of the usb port the usage drops way down and stays at around 2 %. can anyone tell me why this is happening. thanks

I believe i am having a similar problem with the original poster. And I believe i have a solution/explaination for this randomised CPU usage spikes.

Let me just verify and identify the problem we are facing.

Problem :

Even at Idle state, your PC/Laptop will have a random 100% usage and it is not showing in the processes tab which process is using the memory, mouse freezing in mid-action whenever a spike occur. Especially worse when running a heavy-duty power consumption program/game.

Solution tested and tried but not working :

1) Run every available Spyware and Anti-Virus scan in the market
2) Change broadcasting state of router to private.
3) Closing all processes running in window background to a minimum.
4) Adding more RAM to the system.


My Solution :

Simply check your power supply. Make sure all connection are secure and tight. No loose joints and no faulty adapter/battery. The problem is your pc/laptop is not having enough power to run at it best performance. Low batt will cause your laptop to respond sluggishly and slow and even spikes. Thou it is rare for desktop PCs to have this problem as they operate on A/C supply direct from a wall socket, a faulty wall socket or loose plug is usually the cause of the lag spike intermediates which is what i found out. Change an adapter if necessary.

I was having the same problem as some of you here, a constant pulse that spikes cpu activity and loss of wireless connection, and I've managed to isolate the problem. It was my newly installed wireless pci card (i had a zyXEL G302 v3). I installed it before i installed the driver (as it mentioned in the quick start guide >__<). at first i tried to remove the card and see how the pc performed and there was no problem, then i installed the driver and the pci card and the problem was solved. I guess the problem might be driver/hardware related so if you have installed something new try to re-install the driver before putting the hardware in. hope this helps, i know how frustrating the problem is (I hit my table and cracked the edge ) enjoy smooth browsing

I had the CPU spiking problem as well. Here's what I learned and how I resolved it:

I added a second hard drive and a controller card to my system. I accidentally attached my second hard drive to the first slot of my controller card. My first hard drive (with my XP installation on it) was attached to IDE1 on the motherboard. I have a dual boot system (XP and Ubuntu) and when I installed the grub bootloader onto my first hard drive, so it could 'see' my Ubuntu installation I had brought over from a previous computer, my system wouldn't boot at all after a reboot and I was forced to boot an Ubuntu LiveCD to troubleshoot. I won't bore you with all the details, but for whatever reason, my BIOS was seeing my first hard drive (with XP and the bootloader) as the second hard drive and my second hard drive as the first. So I unplugged my first hard drive from the IDE1 of my motherboard, plugged it into the first slot of my controller card, moved the second hard drive to the second slot, tweaked my BIOS and I was good to go.

Then the CPU spiking started. I noticed because my audio kept studdering and had tons of jitter, so I thought at first that I was having issues with my sound card. Again, I won't bore you with all the details, but I made the audio problem, and more importantly, the CPU spiking disappear by simply plugging my first hard drive back into IDE1 of my mobo, and keeping my second hard drive on the second slot of my controller card, instead of in the first slot, which I had mistakenly done when I first added it.

Bottom Line:

In my case at least, the CPU spiking was caused by the PCI bus being overwhelmed with too many devices sending too many hardware interrupts to the kernel. (I should mention that in spite of this supposedly flawed configuration, I had absolutely no CPU spiking or audio problems under Ubuntu....only XP...I'll let you draw your own conclusions!)

So if you have this problem, you should probably be looking into how much stuff you have plugged into your PCI slots and troubleshoot from that perspective.

Hope this saves someone some hair pulling frustration!

Issue resolved

Having the same problem as the OP and a few other posters here, i ran into this thread.

Basically my CPU would randomly spike causing basically everything to freeze for a second.

After trying pretty much everything else in this thread, including getting a new power supply and switching the HDD's sata connectors on the mobo i still had this issue.

By sorting the task manager by % use of a program i found that the process SNMP.exe was hopping up and down my list a lot. I forced a shut down on the process and the spikes instantly stopped.

I'm not too clear what SNMP.exe does, as any of it's descriptions i could find were vague, but it seems to have something to do with networking.

Either way i've had no repricussions yet, and i have since disabled that component altogether.

Whatever is causing your issue may be similar. Just sort the task manager by CPU, and look for the process that seems to be hopping from a low position to very high (1st or 2nd spot).

I hope this helps some folks.