Jump to content
  • Announcements

    • Allan

      Forum Rules   04/13/2018

      Hello folks! As some things are being fixed, we'll keep you updated. Per hour the Forum Rules don't have a dedicated "Tab", so here is the place that we have our Rules back. New Users Lounge > [READ] - InsanelyMac Forum Rules - The InsanelyMac Staff Team. 
Sign in to follow this  
Attil@

PC start-up chime

27 posts in this topic

Recommended Posts

I found with the BIOs modding tools that I have been looking into you can add a startup sound as well as change the begening OEM Boot Screen. I am working on changing my Boot screen now. I started a thread here: http://forum.osx86project.org/index.php?showtopic=19006 but I cannot figure out how to get the size of my new image to the exact same file size as well as resolution as the original. I posted the new and old pic from my BIOs if anyone has any ideas I would really appreciate it..

Share this post


Link to post
Share on other sites

Juan Luis: the usage is fairly simple. You build it, then you connect the X1-1 and X1-2 connectors to your amp. You can connect JP1 with the reset switch on the front of the computer and JP2 to the motherboard, to the pins, wher the reset button would usually go. You can get +5V from the floppy connector (red wire).

R16 has to be set to appr. 43kOhm to give 16kHz sampling rate.

 

I've found an error in the schematic. R1 to R8 are 20kOhm resistors and R9-R15, R17 are 10kOhm resistors. Sometimes is hard to obtain 20kOhm resistors, so you can use two 10kOhm resistors in series or one 22kOhm resistor.

 

The one thing that I will have to cure is the mixing with the soundcard's main output. I renember that older SB16 cards had a PC Speaker connection, that allowed to connect it to the motherboard. The sound was always on the output, even when the card wasn't initialized.

Share this post


Link to post
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

Sign in to follow this  

  • Recently Browsing   0 members

    No registered users viewing this page.

×