Today I encountered a computer that shows performance problems when leeching a file from/sending to the computer with another computer.
The CPU-usage normally sticks between 0 and 15%.
But whenever I try to send a file through network from one pc to that pc, it goes to 100%, mouse turns really laggy and some times the pc instantly exits kernel (cardiac arrest and reboots).
It seems as if CPU power is being used by spyware or something.
I've tried to check which hidden processes run on this computer using Hijackthis and Process Explorer.
Hijackthis logs shows absolutely nothing. Even the dll-list turned up clean.
Process Explorer shows one abnormality.
The line saying Interrupts takes up most of that lost CPU power.
I don't know much about deep hardware, but I do know that hardware interrupts cause lag.
If somebody got advice on what to do, I'd like to hear it.
If a re-install is the only thing left to do, then so be it, but I won't like it.
Thank you in advance.
Oh yeah, when I cancel a file transfer and do the same transfer again, the pc in question won't lag down as badly, but still taking 20-50%.
I did try to re-install the drivers for the ob-nic, but that didn't fix the problem.
How much % chance is there that the problem is in fact the NIC and it's hardware related??
Edited by IO-error, 18 March 2010 - 05:50 AM.