That alone doesn't solve it, but for the DAW to work with 64 samples as well, it is needed, I noticed it. If it is not switched to Background Services, the clicks are there. But it is not enough alone. WiFi needs to be disabled in BIOS and virus scanner needs to be off. In that case it works.

The only problem is that it is not very convenient to do all the needed tweaks all the time I need Reaper. But at least it works now.

 

Switched off Virtual Memory, but it does not seem to make a difference alone.

Someone mentioned setting the throttling off for specific apps is a possible solution in Windows 11 for such problems with a tool called powercfg in CMD (or Powershell??). But I wonder if it works in Win 7 too? I have the full command but it reports error because the syntax might be different in Win 7.

 

process explorer (as I mentioned earlier in this post) will do affinty changes for testing purposes, you can allocate which core certain programs run on, and exclude them from other cores for troubleshooting..etc..

 

Dude u check Reaper's performance meter, do both reaper and ur PC show a similar usage. Once again disable paging file for a short while just for testing, if u r using ur pc for other needs. And it requires a restart untill restart pagefile.sys ll not bea cleared

 

right click on the process and you can set its priority as well as affinity.

 

I restared the computer of course. Okay, will check this with the meters as well.

 

Ahh, I have Process Explorer but never noticed you can do things like that with it.

But what should be the strategy here to follow when setting all this? Let's assume I have Reaper only that I run. What to do next? I check which core it is running on and I exclude everything else from that core? Or what is the order of tasks I need to do?

 

Meanwhile I also got a suggestion that solved this problem I have for another user. He typed this in CMD:

powercfg /powerthrottling disable /path "C:\REAPER\reaper.exe"

Do you know how this command looks in Windows 7? I tried to check, but the help displays so much text that I cannot scroll back enough to find this parameter, and the reverse of it. I wonder if the syntax is the same as well or not?

 

How to turn off SpeedStep in Windows 7?
https://superuser.com/questions/725755/how-to-turn-off-speedstep-in-windows-7

What regulates Intel SpeedStep CPU throttling? Can I get some control of this on Windows7?
https://superuser.com/questions/183...ttling-can-i-get-some-control-of-this-on?rq=1

Processor State

All modern CPU’s have the ability to throttle down when not under load. There are various mechanisms that processors use for this including putting secondary processor cores to sleep, reducing the clock speed, slowing down the front side bus and more.

All these strategies are designed to save power and modern laptops are getting remarkably good at conserving battery power. The idea is that when load increases the CPU is throttled back up, contributes to getting the work done and then winds down again. Power on tap, battery saving in the bank.

The problem is when you sit down at your keyboard and play that grand opening chord. All of a sudden the CPU has an awful lot to do – and it needs to do it right now - not when Windows gets around waking up the CPU.

Scroll through the Advanced Power Settings and locate the settings for “Minimum Processor State” and “Maximum Processor State” and make sure both are set to 100% - which basically means not to use any of these power saving mechanisms and to keep the CPU up and running ready to go.



If you’re running any modern PC and these options are missing, you might want to check with whoever setup or installed Windows on your computer and find out why. This setting really should be available and reviewed.

 

Last edited: Apr 26, 2025 at 8:47 AM

disabling WiFi in Windows device manager should be enough, DPC culprit indeed can be its driver (but again, you might offload it to a cpu core that's not used by audio engine and DAW)
virus scan or any background sync tasks should definitely be postponed or ideally disabled completely when recording

for many people, easier way is to have a computer dedicated to such audio stuff, with nothing else doing on it

 

This is done as well. I included it in my approaches already.

There is a registry mod as well. I wonder if the settin above and the mod complement each other, or they are actually the same.One thing is sure, if you do the steps above, the registry line that the mod adds won't be added.

 

Shut down your PC after making the changes and run LatencyMon again.

It should look something like this:
Your system appears to be suitable for handling real-time audio and other tasks without dropouts.

 

Last edited: Apr 26, 2025 at 1:15 PM

the normal course in experimenting with settings while troubleshooting is to only change ONE parameter at a time and then observe what effect it has or causes, otherwise you won't know what is happening.

I'd start by raising the task priority 1st, before I expirement with Affinities, though no harm will come if you do the opposite.
Raise the priority of the Reaper process, one step at a time and see if it changes anything, if this helps you find a suitable setting write it down
now try giving reaper just 2 cores to play with (assuming you have 4 cores) its not intuitive, but often for me when VLC has problems with a heavily encoded video file, if it give it just 2 cores, it will play the file all right.

if it helps write down this setting as well. once you have figure optimum settings you will need to google how to configure these settings to become permanent when running reaper.

 

when mucking around with affinities and priorities, remember you can also change the settings for other processes as well.

so if you see a process running that seems like its using a lot of cpu time and you don't need it when reaper is running, you can change its priorities to make it below normal, or idle, of course you can suspend it as well, which will stop it from using any resources while you use reaper.

if you kill a process it can respawn, this is the common behaviour for viruses and anti-viruses, and some services. if you kill processes with a very low PID (process i.d.) it can kill windows or cause a reboot, I have done it and I can vouch for you it will def do that...
so don't suspend or kill any process lower than or the same as winnt (its pid is 580 on my machine) also killing the 1st instance of svchost.exe can cause problems so best to leave that one alone as well.

 

don't know but you should be able to scroll back in the cmd window use the slider on the right side of the window, you can also capture the output into a text file, by using a pipe, type "powercfg /? >wtf.txt" and the help output will be captured to a text file called "wtf.txt", that you can open in wordpad or notepad or whatever your favorite editor is. You need a space after "?" before you type in the ">"

happy reading....

 

This is what I get when monitoring Reaper during recording. Windows on Default settings. Priority on High. Background services prioritized. No other tweak. Tell me your suggestions how I should set Affinity according to this.

By the way, even when I set everything I mentioned, all the lengthy tweaks and finally I can record without dropouts and clicks at 64 bit, Latencymon still reports throttling to be a problem. It is insisting on switching off things in the BIOS or update it. First of all, there are no options in my BIOS to do anything with the CPU, except for switching Virtualization on or OFF. I am running a Hybrid of Legacy+UEFI though, the MacOS needing UEFI and Windows needing Legacy. My Windows installation was done on Legacy. I wonder if this is a problem.

Secondly, I noticed that even when you set High Performance in Control Panel, the Throttling Registry is still missing. You need to add it manually to be in the registry:
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power\PowerThrottling]
"PowerThrottlingOff"=dword:00000001

I wonder if this is a problem as well? If you add this to the registry, Latencymon still complains about throttling though.

I checked and my BIOS is a 2012 version, the last update was in 2019. So there could definately be an update, but due to the MacOS installation I fear to update it. I am not sure that the Hackintosh part will accept the new BIOS.

 

Disable Network Adaptor or/and Wi-Fri (Wi-Fi) whilst using your DAW as it's one of the biggest causes of latency reported when using Latencymon (Software):

Spoiler: LatencyMon v 7.31

https://resplendence.com/latencymon

 

i'm building a hackintosh out of an HP 800 G4 mini, and one of the 1st things they tell you to do is update the bios, so it seems to fix some hackintosh glitches. are you using OpenCore for your hackintosh?

re: Throttling, you have to make sure you are plugged into the power supply, if you are running on battery, it will still throttle to save battery no matter what you tell it to do, computers often don't obey these days.

you'll have to experiment on affinity, It will differ by hardware/cpu etc. There is no perfect setting, only whats perfect for you.

you could try this utility, also check youtube for videos if this doesn't help ..

https://www.techpowerup.com/download/techpowerup-throttlestop/

download the latest stable, not the beta...
its free...

the legacy uefi bios setting shouldn't be an issue, if they work as is don't mess with them, it can stop your os from booting if you get it wrong and you have to go back in the bios and straighten things out.

 

@sono
Which motherboard – please specify the exact name – are you using?
Which CPU – please specify the exact name – are you using?

Updating the BIOS could help, but this may risk compatibility with your Hackintosh setup.

Legacy vs. UEFI Boot:Running
Windows in Legacy mode while macOS uses UEFI is not ideal, but it's unlikely to be the direct cause of audio dropouts unless there are driver or hardware compatibility issues. However, UEFI generally offers better power management and device handling, so if possible, consider migrating Windows to UEFI in the future.

Set your buffer size as low as possible without causing dropouts (commonly 128 or 256 samples for recording)

LatencyMon often flags power management and throttling as issues, especially if it detects ACPI.sys or similar drivers causing high latency. Pptimizing within Windows and Reaper, and monitor for real-world performance rather than just LatencyMon warnings

 

he mentioned it earlier in the thread..

"It is a HP Probook 6570b with 3210M i5 CPU. One of those that can be used as Hackintosh. So I can have Logic as well and take my computer with myself using it as a mobile studio."