puntadura

I have a HP pavilion ze4500 laptop. i have had an issue lately where once the machine has booted into windows, and I have no programs open, i can move the mouse around and it will freeze for 1 second and then start to move again. This happens about every 5 seconds. The same thing happens with the keyboard. I can be typing anywhere, word, explorer, notepad... anywhere and about 1 second out of every 5 it will hang and miss about 3 keystrokes. I have tried changing my startup configuration, i even re-installed windows XP fresh and get the same issue. If I go into system performance i can watch the processor spike about every 5 seconds, it is not much, less than 20% but this seems to be the cause as while i am moving the mouse around it hangs as the spike hits. I went into task manager and when this happens the system idle process never goes below 90%

I have also booted into safe mode and still get the same problem

Please help!

TriggerFinger

Try a bootable CD or a live CD (linux live CD like Knoppix or Ubuntu) and see if it behaves the same. If it does, check your RAM with Memtest86+. If it behaves differently with a live CD, run HDD diagnostics to test your hard drive.

puntadura

It was a faulty baterry broblem but thank you anyway....

TriggerFinger

Wow... I know the laptop would be running so slow or in fact almost freezing when running on batteries (depends on how it was set up) but it is a surprise that a defective battery can affect the performance when laptop is running on AC (I am just assuming you tried it on AC with the battery removed and got the same results).