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Title: A CPU reset botton - possible? Post by: potscrubber on October 04, 2012, 03:35:46 AM Hi da Folk
Many times, when one is patiently troubleshooting the occasional SCSI or boot problems, you have to reboot the machine many many times. With all the rackety clack and power pull ups and downs, it feels like an insult to the poor old PSU. I am thinking, somewhere there is single line that if cut or pulled to ground (by a custom button) momentarily would reboot the CPU, and save doing a power cycle. What do we think?? pot. Title: Re: A CPU reset botton - possible? Post by: ddvdave on February 07, 2013, 10:38:05 PM The signal RST.D will accomplish this.
On the schematic diagram for the diagnostic extender board, it includes a reset switch which pulls RST.D down to ground. This signal is on pin 38 on CN1 (card edge connector) of the CPU board. When I considered doing this myself, the easiest place to wire a switch to RST.D is either at D1 or R19 on the CPU board. Check the schematic E3CPU2 page 1 for details. Then wire the other side of the switch to ground. DISCLAIMER: I would not advise doing this unless you know what you're doing and you really think it's necessary to have a reset switch on your EIII. |