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Topic Title: USB Devices and CPU Temperature
Topic Summary: Do USB devices affect CPU temperature?
Created On: 08/02/2007 01:32 AM
Status: Read Only
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 08/02/2007 01:32 AM
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[L]ord [R]ahl
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Posts: 1
Joined: 08/02/2007


I've noticed something about my system when I plug in certain types of USB devices. The CPU temp goes up between 5-7 deg C when I plug in a USB Flash Stick or a USB CD-ROM drive.

I've read something about the USB polling bug on Windows systems and I've tried this work-around, but still my CPU temp goes up as soon as I use the said devices. Once the USB devices are removed, the CPU temps go back down to its normal idle values. Oddly enough, if I plug in my Digital Camera, the temperature doesn't increase...

Is this normal?



* Idle CPU Temps w/o USB Devices: 33-36 deg C
* Idle CPU Temps w/ USB Devices: 41-43 deg C

System Specs:

CPU: AXP 2400+ TBred @ 11.5 x 210MHz @ 1.67V
Cooling: Thermaltake Volcano 7+
Board: Epox 8RDA3G
RAM: 1024MB Geil ValueRAM @ 6-3-3-CL2.5 @ 2.8V
HDD: 1 x 120MB WD Caviar EIDE HDD and 1 x 40GB Seagate Barracuda EIDE HDD
Video: ATi Radeon 9550 128MB AGP
DVD-RW: Toshiba OEM Generic Writer
CD-RW: Asus CRW-5232AS in Self-Powered USB External Enclosure
Removable Media: 1GB Kingston SDCard in generic high speed USB2.0 Card Reader
PSU: Thermaltake W0070RUC 430W

OS: Windows XP + SP2
Monitoring Software: Motherboard Monitor 5.0
 08/02/2007 07:33 AM
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Posts: 8052
Joined: 01/22/2004

Some devices process a few things when connected. That will cause CPU usage and therefore T increase.
For example, if I just plug-in a mouse, nothing happens, but if I plug the printer or phone the CPU will start processing 'something'.


World's best Red Alert 2: Yuri's Revenge mod and Star Trek: Starfleet Command 3 mod:
 08/11/2007 09:57 PM
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Posts: 124
Joined: 06/17/2007

what about pc joypad?does it increase temp when it's plugged?i don't think so but i'm not sure

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