Jerky mouse when cpu spikes

[omaha]

Hi guys n girls,

when my cpu spikes, my mouse movements get jerky, esp when hard disk is going, then it can move around a bit by itself.

Keyboard can also have a delay between typing and the letters appearing on the screen.

Is there anyway of stopping this? Its so incredibly annoying, particularly when trying to locate a button i need to press in a certain amount of time (anyone here play online poker?)

Surely i can make my system give a bit more resources to my mouse and keyboard, and a bit less to everything else?

Have searched on google, etc, but all jerky mouse enquiries simply come up with 'clean ball' 'buy a laser' or 'dont use laser on glass'

All help much appreciated

 

[gone fishin']

How old is the computer, how much memory, CPU and speed,how long has the computer been operating good, how long bad, do you have antivirus software? is it up dated?

 

[omaha]

About 3years old, just put 3Gig ram in, AMd athlon64 3500+ 2.21Ghs. Up to date , regularly defrag hd.

Have always noticed a bit of lag, but is more noticable now im having cpu spikes when playing poker.

Keyboard can also lag. Its so annoying, as the computer is obviously aware of exactly where the mouse and keyboard are doing, (as it eventually 'catches up'), but it obviously thinks thinks something is more important

It only happens when cpu is spiking, or under heavy load

 

[omaha]

bump any ideas?

 

[bob8701]

mouse is controled by south bridge, it could be tempature problem.

 

[mikeyboy1973]

What is causing the CPU to spike? if something takes 100% CPU at a high priority then even the most powerful computer will get a "jerky" mouse.

 

[Tachikaze]

I have been getting the same issue with W2K. I have exhausted all my ideas in dealing with it.
I get a lag that is system wide, mouse, keyboard, what ever, that lasts for less than a second, and occurs every 3 seconds. System information shows me a spike from 2% to 21%.

 

[Astaran]

I'm having this same issue with mouse and keyboard on a new rig I just built. It never occurred with my old rig which used the same mouse and keyboard.

Q9650 Quad Core
8 GB Ram
500 GB Western Digital HD
MSI P45 Platinum
GTX 280 EVGA
x-Fi Titanium Sound
Vista 32 bit (soon to be upgraded to 64)

It happens in windows, games, everything.

I've had to retype many words of this post due to the keyboard hanging on certain typed letters every 3 seconds or so.

Any help would be appreciated!

 

[MegaMan1]

I am having this problem after new win 10 pro install Feb 2017. Same hardware as before and did not have problem. Something is spikeing and I can't keep my cursor in this window. I5 2500K Asus MB 16gb ram, nothing running except this firefox browser. Key board is MS USB but works, mouse is MS wireless and has bad delay.

 

[MegaMan1]

I found lots and lots of threads like this, but none ended in a solution, only possible causes. I reset my ram and that worked for me.