My C64x keyboard for some reason doesn't work

bhl88

18 Oct 2018, 22:58

https://pcpartpicker.com/user/bhl88/saved/ZhcYTW

Trying to speed up my C64x (and hoping that there's a C64 VM). Unfortunately the keyboard is sparking (it's short circuiting when it's inserted) and I have a H110TM-ITX R2.0 (19V). As a result, my native keyboard doesn't work. Is there a way to change the amount of power it gets or is there a schematic for the wiring?
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P.S. The company can no longer support me asking for two replacements.

Findecanor

18 Oct 2018, 23:47

Huh?

Edit: OK, so I see that your ASRock motherboard has only a single 19V power input. I did not understand what you meant by 19V until I looked it up.
Beware that a i7-7700 should pretty much max out the power delivery of your motherboard. Also, low-profile coolers are often not recommended with anything bigger than a i5.

I suppose that you are supposed to connect the keyboard to a 9-pin 2-port USB 2.0 header on the motherboard.
That one should provide a steady 5V. Did you connect it correctly and to the right header?

If I were you, I would look over the keyboard's PCB and look by eye for any weird things that might explain a short. USB leads should go to a microcontroller chip and there should only need to be a few small components to support the microcontroller. The rest of the keyboard should not matter -- and any shorts there should manifest themselves as phantom key strokes or keys being pressed all the time.
Also, no weird things on your cable and no chips of metal anywhere on the motherboard? I would clean it with a vacuum cleaner just to be safe.

bhl88

19 Oct 2018, 19:59

https://ark.intel.com/products/97122/In ... -3-80-GHz-
Is it because they tend to overheat fast?

I got the low-powered i7 though.
Had to replace the Noctua because it's too big.
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Was thinking that a i7 would work considering that the C64x can house these (in two of their products):
CPU Dual-core Intel Atom D525 @ 1.80 GHz (Ultimate), Intel Core i7 @ 2.2 GHz Sandy Bridge (Extreme)

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