Skip to main content
Home Forums 68kMLA 7300 - no boot — #2
Post #2 by trag
Source Forum68kMLA
CategoryHardware
Post DateWed, 23 Sep 2009 - 21:34
Original URLhttps://68kmla.org/bb/threads/7300-no-boot.18645/
Post
Which CPU card do you have plugged in.

And yes, the ROM is soldered down.

Hmmm. If you have a voltmeter, I would measure the 3.3V wires from the power supply (you can plug the probe into the back of the connector housing next to the wires). I think that without 3.3V you'll get a chime but no boot/video because one or two components of the PCI bus (the clock buffer which distributes the 33.333 MHz clock) require 3.3V in order to operate properly. I could be wrong about that. It's been such a long time since I did those experiments.

Jeff Walther

mp.ls