It actually says 5v...:D
Sorry for the poor resolution but Tina refuses to co-operate:(
Yes..it can run at 12v. Just need to change the debounce cap/res values and the display resistor values.
I'll post an updated schematic later today.
Hi
Try this one..
BTW...The inverters should have been 40106 Schmitt inverters instead of 4049's. You can use 4093's, configure as inverters, if you already have those.
My overclocked Q6600 runs at 3Ghz and averages 70c and I've been using it this way for about 2 years without a problem.. I don't have any special cooling.
I don't think you have a problem.
Your MB has to support changing CPU core voltage or you won't be able to change it.
however..OP could use a 4511 and drive a common cathode display directly (25ma/segment). But then you would need something like a 4518 to drive the 4511.
Hi
Here is a circuit with changes to consider.
I replaced the 4093's with 4049's and added debouncing for the reset and lamp test switches. Also increased the debounce rc values to provide about 20ms debounce time and added power on reset. This circuit worked in simulation.
Suggestion....
I know this is probably your first project, but a bit of advice...
Always...always...always keep your schematic accurate. Always make your physical circuit match your schematic. If you do make changes to the physical circuit...always take the time to reflect the changes in your...
On your schematic:
There is a short circuit from ULN2003 pin 8 (GND) to +5.
Remove it.
Pin 7 of the CD4093 looks disconnected. It should be connected to ground.
Does it have to have 5 banks of switches?
How about one bank of switches (1-9), a set and reset button, and five LED displays?
You would set five switches, then press the set(or reset) button.