Jump to content


FocusMax using 99% of CPU


Recommended Posts

Hi All,

I have fresh built laptop winth Windows XP on it and i'm finding that FocusMax is killing my latop by using 99% cpu.

I've looked on the web for a fix but can't find anything. Has anyone else come acorss this ?

My laptop has a 2Ghz Processor with 1.5gb which runs everything else no problem as i can open MaximDL, TheSky6, ccd commander anda few other things which only take about 30% cpu, yet if i open FocusMax it steals all the cpu using 99% for it's process.

Desperate for help on this one as i've tried reinstalling and still no luck.


Link to comment
Share on other sites

  • 4 weeks later...

It is unlikely to be due to the fact you "built" your computer. I have never experienced this at all despite usinf FMax on different set ups. This could be tricky to track down as it could be hardware realted (focuser/camera) or software (capture program/driver).

I would try (don't know your setup though)

  1. reinstall everything making sure you have the latest version of everything
  2. make sure you have NOVAS etc installed too (just in case)
  3. use just the ASCOM simulators (scope, camera, focuser) with no actual hardware connected and see

This should help you narrow down the offender. You can then sequentially replace each simulator for the real device to help refine the culprit.

Short of that can't think of much to help you.


Link to comment
Share on other sites

Hi Paul,

I've rebuilt my latop from scratch. I never thought about using the simulator to rule out hardware causing the problem, so that's a great idea.

I need to also check to see if it happens when i run it manually Vs Auto focusing from ccd commander.



Link to comment
Share on other sites

Is the PC actually slowing down?

Some VB6 programs appear to use 100% of the CPU but are continually yielding to other applications and they get what they need when they need it.

There's a FocusMax Yahoo forum, where the authors are active, it may be worth asking there.


Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Recently Browsing   0 members

    • No registered users viewing this page.
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. By using this site, you agree to our Terms of Use.