onlyonemac
Well-known member
Tried that on my Performa 475, but when I clicked the radio buttons, both gave me a load hissing/buzzing noise, although a different noise for each button (they weren't both the same noise as each other). When I restarted the Mac, I got a normal chime like it always does. (BTW, I don't have a PRAM battery, but shouldn't it work if I do a warm restart?)To run this on your 630 and 475, make the following changes to the BootBeep control panel:
Change contents of 'mach' ID -4064 to 0xFFFF 0000
Open 'cdev' ID -4064 and change:
Address 0x14A from 0x000C 3550 to 0x000C 2722
Address 0x158 from 0x000B E2F0 to 0x000B D4C4