HP dc7600 100% CPU usage

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dlc

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Hi guys,

I have an old HP dc7600 small form factor desktop PC which has been running fine for quite a while now on Windows 7. A few days ago I powered it up and noticed the CPU fan blowing at full blast.

I checked the task manager and found a process with the name of "secsvcs" to be the culprit, causing cpu to run at 100%. Ending the process sees a drop in cpu usuage but the process restarts itself and same situation continues.

I then decided to try something else and disconnect the harddrive completely. Power it up and immediately the fan starts blowing at full blast. That tells me the issue might not be software related.

I tried applying new thermal paste, cleaning all the fans and heatsink to make it dust free. Didn't help either.
I also have a spare Pentium 4 processor which I swapped the current one with, new thermal paste as well. Same issue.

What do you guys think? I cant understand how the cpu will be at 100% usage without even a harddrive plugged in. All fans are spinning correctly as well. Any thoughts or things to check would be appreciated.

Thanks in advance.
 
When you start up the PC without the hard drive(s) connected, the PC probably won't have any power saving features enabled, meaning that the CPU will run at 100% speed (but not 100% load).

Secondly, I would suggest that you download and use Process Explorer (from SysInternals - by Microsoft), instead of just Task Manager. Process Explorer should be able to tell you what the service name is and what applications also run under that Windows service.

Lastly, I would also suggest that you make sure that you have an Anti-Virus & Anti-Spyware suite installed. If you don't know what to get, just stick with MSE (Microsoft Security Essentials), and perhaps run a once-off scan with Malwarebytes' Anti-Malware to ensure that you don't currently have malware on your PC.

I hope that when you applied the thermal paste, that you completely removed the old thermal paste from both the heatsink & CPU and that you only applied a very thin and even layer of new thermal paste!
 
Sounds like a bios or system board fault. Have had that exact problem with a Lenovo mini tower, fan going nuts continuously. Look for a bios update, also reset the bios , unplug the power supply from the board, reset anything that can be reset , leave for 15mins plug all back in again and hope for the best.

Hope you have already googled the issue...
 
dlc said:
I then decided to try something else and disconnect the harddrive completely. Power it up and immediately the fan starts blowing at full blast. That tells me the issue might not be software related.
Click to expand...

Just a thought here, check the bios setting for the fan speed as I know that although the fan speed is usually controlled as a result of amount of heat in the case, the default fan speed can be set manually in the bios for dc7600.
 
Pada said:
Lastly, I would also suggest that you make sure that you have an Anti-Virus & Anti-Spyware suite installed. If you don't know what to get, just stick with MSE (Microsoft Security Essentials), and perhaps run a once-off scan with Malwarebytes' Anti-Malware to ensure that you don't currently have malware on your PC.

I hope that when you applied the thermal paste, that you completely removed the old thermal paste from both the heatsink & CPU and that you only applied a very thin and even layer of new thermal paste!
Click to expand...

I will give the Anti-Malware scan a go, the PC does have Avast Anti Virus installed though.
Yes I made sure all the old paste was removed from cpu and heatsink and applied a thin evenly spread new layer.
 
airborne said:
Sounds like a bios or system board fault. Have had that exact problem with a Lenovo mini tower, fan going nuts continuously. Look for a bios update, also reset the bios , unplug the power supply from the board, reset anything that can be reset , leave for 15mins plug all back in again and hope for the best.

Hope you have already googled the issue...
Click to expand...

Yep, done a lot of googling already..couldnt find anyone with the exact same issue..BIOS update also sprung to mind, there's quite a few updates available so ill try that if the malware scan comes up fruitless.
 
Disbale Windows Defender and see if the problem goes away.

Googling "secsvcs" get's a lot of hits wrt 100% cpu usage.
 
Update the bios....... Fan speed is controlled by the bios
 
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