Windows 7 Forums

Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.


Windows 7: CPU noise caused by 'Idle Processor'...Core Temperatures... Help!?

10 Feb 2016   #1
martinlest

Windows 7 Home Premium SP1 64-bit
 
 
CPU noise caused by 'Idle Processor'...Core Temperatures... Help!?

I was being driven crazy by a high-pitched ‘chirping’ noise coming (as I could see, well, hear, on opening the PC case and investigating more closely), from an area around the CPU (i7-4790K, not overclocked (i.e. @ 4.00GHz. & 4.40GHz turbo)

Googling finally lead to this thread:

high pitched noise coming from cpu area [Solved] - Motherboards - Motherboards

and I followed through on these instructions there:

1. Execute: "regedit"
2 .Locate: HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Control \ Power \ PowerSettings \ 54533251-82be-4824-96c1-47b60b¬740d00 \ 5d76a2ca-e8c0-402f-a133-215849¬2d58ad
3. Change Attributes from 1 to 0.
4. Then, through the control panel - power - in the settings mode select power management processor. There will be an option disabling idle processor and high pitched noise immediately disappears.


It worked a treat, no more annoying squeaking.


But if the “All CPU Meter” gadget on my desktop is at all accurate (how close do these gadgets get to the real core temperatures? They can jump up and down ten degrees or more between one second reading intervals), as also explained in the same thread – and logically enough – the core temperatures, when running MS Flight Simulator (which is what this PC mostly does) are about 15 degs C higher than when Idle Processor is enabled. (When MSFS is running, I get core temps between 45 degrees & 70 degs (usually around 55). Adding 15 degs to those temperatures is not really acceptable.

More Googling lead to some other suggestions and I have tried disabling the C states option in the BIOS (Asus H97I M/B).In Power Management I have re-enabled the Idle Processor option.

Now, with C states disabled, enabling Idle Processor does not cause the CPU noise, as it did before.

However, before I found these posts, I knew nothing about C states, so I am posting here to ask further advice:

1. Is it OK to leave the C states set as disabled in the BIOS like this, with the Idle Processor setting in Windows Advanced Power Management set back to Enabled? My core temperatures are now back in the 50s, with MSFS running, and all is nice and quiet, as I say.
2. I read that having C states disabled with Speedstep enabled is not good. Do I need to disabled Speedstep as well? If so, why?
3. I also do sometimes put the PC into sleep mode. Once again, someone said that was not recommended. Again, could some kind ‘guru’ explain why that is the case (if it is)?

Any downsides to disabling C states in the BIOS in this way that I haven’t considered?
Many thanks for your help here.
Martin


My System SpecsSystem Spec
.
Reply

 CPU noise caused by 'Idle Processor'...Core Temperatures... Help!?




Thread Tools Search this Thread
Search this Thread:

Advanced Search




Similar help and support threads
Thread Forum
Is this good gaming? Intel Core i5-2400S Quad-Core Processor 2.5 GHz 4
Here's a link to what I'm thinking about buying. I've never messed with these "barebones" PCs before. What exactly will I need for it to run games like BF3. Thanks, sorry if I'm being vague, I really don't know too much about this area of PC Intel Core i5 2400S Quad Core Processor 2 5 GHz 4 GB...
Gaming
Quad core processor only running on one core.
I'm having an issue with my CPU. It seems that it is only using one of its cores. This issue first became apparent to me when I was trying to run Blacklight Retribution. It popped up a warning message saying that my computer does not meet the minimum requirements of have at least a dual core. ...
Hardware & Devices
High Motherboard/HDD temperatures while idle
I apologize but I didn't know where to place this, so I'll put it here for now. So I have recently installed Speccy, and I noticed that while idling my motherboard tends to sit around 55-60c (in the orange) and my HDD usually sits around 37c. However, as of today, my motherboard was 63c and...
General Discussion
CPU core temperatures
First of all Hello! :) I Have Intel Pentium E2200 core 2 duo running at its standard speed/not over clocked speed my problem is that few moments ago my pc video card was running at temps 60-65C with load and 40-55 in idle so i was getting worried in getting my video card fried so i off...
Performance & Maintenance
Core temperatures...
After trial and errors, and cleaning out the dust filters of my case, the none-OC-d core temperature for the i5-760 settled down in a relatively good range. In general use of the system, including playing games, the temperatures for the cores are: The cores have different temperatures, 0 and...
Hardware & Devices
Dual Core Processor, only 1 core active
First and foremost thanks go out to anyone and everyone who can help me with this. I've recently installed 7, clean install, not an upgrade. I have an Amd Athlon X2 3800+ installed and I installed 7 as a 64bit OS as well. I had this problem before 7 and could never solve it. The core doesn't...
Hardware & Devices


Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

© Designer Media Ltd

All times are GMT -5. The time now is 20:04.

Twitter Facebook Google+



Windows 7 Forums

Seven Forums Android App Seven Forums IOS App