At 12:19 AM -0700 7/20/2010, Gus wrote:
G4 Yikes with 400mhz Processor clocked to 450 / 750 mb memory. a PC
keyboard hooked to the USB port. PC mouse hooked to the USB port.
I got this processor from ebay. Says it is a 500 mhz G4. DId a one
for one swap with the G4 on my Yikes board. (left jumpers at 450).
Chime, But no video.
Cant zap pram (think it is because of the PC Keyboard) But should I need to?
With the new CPU installed... Unplug the system. Pull the PRAM
battery. Wait a minute. Reinstall the battery. Wait about 30 secs
then press the CUDA button ONCE. That will both reset the PRAM and
properly reboot the power manager.
For grins, I did drop the system clock from 400.. then up to 500 No
change with the 500 mhz g4, Still chimes, no video.
Any time you make a change to the system, such as replacing the CPU
or changing the clock speed, you need to reset the power manager
(press and release the CUDA button ONCE).
WRT the chime... That's the self-test telling you that the CPU,
buses, and memory responded correctly. It has nothing to do with how
the peripherals respond to the changed clock speeds.
- Dan.
--
- Psychoceramic Emeritus; South Jersey, USA, Earth.
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