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Getting high idle CPU usage. :-/

#1jelly2008Posted 3/27/2014 9:34:34 AM
Running Win 8.1. For the past few days, noticed that my processor would run at above 50% on idle after starting up, for quite a while.

"System interrupts" and "System" processes seem to be doing a lot of activity. But I can't find out what, exactly. Any ideas?
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Intel C2D E7500/ Intel DG41RQ/ CM GX550W Bronze/ ASUS ENGTS450 DirectCU/ 4GB Transcend DDR2-800 RAM/ Seagate 320GB + 1TB HDD/ Hitachi 250GB HDD/ Win 8.1 64-bit
#2Fade2black001Posted 3/27/2014 9:35:58 AM
What are your startup programs? Run a virus scan to make sure you don't have a virus thats eating up your CPU.
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We just keep doing the wrong thing until it turns out right.
#3jelly2008(Topic Creator)Posted 3/27/2014 9:44:33 AM
I did a boot scan with Avast yesterday. Gonna do it again. The anti-virus is the only start-up program I got.
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Intel C2D E7500/ Intel DG41RQ/ CM GX550W Bronze/ ASUS ENGTS450 DirectCU/ 4GB Transcend DDR2-800 RAM/ Seagate 320GB + 1TB HDD/ Hitachi 250GB HDD/ Win 8.1 64-bit
#4romsnbombsPosted 3/27/2014 9:48:39 AM
I could be wrong, but it might just be an old core2duo showing its age with a newer OS. For example, I think the svchost or trustedinstaller processes that windows vista and 7 uses for windows updates can be incredibly CPU hungry sometimes
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2600k | GTX 780 | P8P67 M Pro | 8GB
#5jelly2008(Topic Creator)Posted 3/27/2014 9:56:40 AM
Maybe. But I never noticed this before. It just started doing this days ago. And I just installed updates to Windows. Nothing else.
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Intel C2D E7500/ Intel DG41RQ/ CM GX550W Bronze/ ASUS ENGTS450 DirectCU/ 4GB Transcend DDR2-800 RAM/ Seagate 320GB + 1TB HDD/ Hitachi 250GB HDD/ Win 8.1 64-bit
#6PsythikPosted 3/27/2014 10:02:29 AM
romsnbombs posted...
I could be wrong, but it might just be an old core2duo showing its age with a newer OS. For example, I think the svchost or trustedinstaller processes that windows vista and 7 uses for windows updates can be incredibly CPU hungry sometimes
Highly doubtful. My old E8400 had no problems running 8 smoothly with minimal CPU usage.

TC, disable all unnecessary startup programs from the Task Manager, and do a scan with MalwareBytes.
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4670K | 2GB PNY GTX 770 OC | 8GB 1600 9-9-9-24 | 120GB SSD | 1TB WD Blue | Gigabyte Z87MX | BitFenix Phenom M (white) | Win8.1 Pro
http://imgur.com/KaTyP5o.jpg
#7jelly2008(Topic Creator)Posted 3/27/2014 10:16:59 AM(edited)
Psythik posted...
romsnbombs posted...
I could be wrong, but it might just be an old core2duo showing its age with a newer OS. For example, I think the svchost or trustedinstaller processes that windows vista and 7 uses for windows updates can be incredibly CPU hungry sometimes
Highly doubtful. My old E8400 had no problems running 8 smoothly with minimal CPU usage.

TC, disable all unnecessary startup programs from the Task Manager, and do a scan with MalwareBytes.


Gonna do that. I just started a boot scan of the entire system, with Avast. I'll run MalwareBytes after that. So, uh, what should I be looking for at the end of Malwarebytes scan?

EDIT:Haven't used Malwarebytes before. And should I disable Avast from starting up too?
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Intel C2D E7500/ Intel DG41RQ/ CM GX550W Bronze/ ASUS ENGTS450 DirectCU/ 4GB Transcend DDR2-800 RAM/ Seagate 320GB + 1TB HDD/ Hitachi 250GB HDD/ Win 8.1 64-bit
#8DarkZV2BetaPosted 3/27/2014 10:21:33 AM
Try unplugging any unnecessary devices to see if it's an external cause. Sometimes, a USB device or some such can crap out and cause these kinds of problems.
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god invented extension cords. -elchris79
Starcraft 2 has no depth or challenge -GoreGross
#9PsythikPosted 3/27/2014 10:24:21 AM
jelly2008 posted...
Psythik posted...
romsnbombs posted...
I could be wrong, but it might just be an old core2duo showing its age with a newer OS. For example, I think the svchost or trustedinstaller processes that windows vista and 7 uses for windows updates can be incredibly CPU hungry sometimes
Highly doubtful. My old E8400 had no problems running 8 smoothly with minimal CPU usage.

TC, disable all unnecessary startup programs from the Task Manager, and do a scan with MalwareBytes.


Gonna do that. I just started a boot scan of the entire system, with Avast. I'll run MalwareBytes after that. So, uh, what should I be looking for at the end of Malwarebytes scan?

EDIT:Haven't used Malwarebytes before. And should I disable Avast from starting up too?
Just let it finish the scan and delete whatever it finds. No, you shouldn't disable Avast from startup unless you don't care if it protects you or not.

DarkZV2Beta posted...
Try unplugging any unnecessary devices to see if it's an external cause. Sometimes, a USB device or some such can crap out and cause these kinds of problems.
Could also be caused by a failing hard drive. TC, what does Task Manager say about your disk usage in the Performance tab?
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4670K | 2GB PNY GTX 770 OC | 8GB 1600 9-9-9-24 | 120GB SSD | 1TB WD Blue | Gigabyte Z87MX | BitFenix Phenom M (white) | Win8.1 Pro
http://imgur.com/KaTyP5o.jpg
#10DarkZV2BetaPosted 3/27/2014 10:26:57 AM
Or failing SATA controller. I just had some fun with that recently. :|
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god invented extension cords. -elchris79
Starcraft 2 has no depth or challenge -GoreGross