General question about jumpers

  • Thread starter Thread starter Der Andere
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Der Andere

I have a very general question about jumpers. In the handbook of my A7N8X-X
every PIN is described exactly. For example, for the speaker connector it
exactly says which PIN is +5V, which ones are Ground and which one is
Speaker. However, on the 4-PIN connector cable one this information is not
given. Does is _not_ make any difference which way I connect the cable;
after all, there are two possibilities? If the way I connect the cable _is_
important, how do I know how to do it (except for trial and error)?

Thanks,
Matthias
 
Makes no real difference what way round a pc speaker is connected.
Live(+)(signal in) to +, neg to -.
current flows in through + resulting in sound pushing the cone outwards, if
connected other way round then thinner sound as cone is pulled inwards.
As a pc speaker is not exactly Hi Fi then you would not notice the
difference.
 
Ok, but I have this issue in most of the jumpers I have connected, the
speakers was only an example. I also have the Power LED, the ATX Power
Switch, the Reset Switch and a harddisk connector. My computer sometimes
simply crashes (resets itself, tries to reboot and then halts). I wondered
whether this could be due to some jumpers connected in a wrong way. I know
there could be many other reasons for this occuring, but I really tried many
other things before and just wasn't sure about that jumper-issue. A friend
of mine told me that his computer was not stable until he changed (rotated
180 degrees) some jumpers.

Regards,
Matthias
 
The power switch, reset switch and speaker don't matter. The power LED
and the hard drive LED do matter, but if you get them backwards the only
consequence is that that particular LED won't light.
 
Der said:
Ok, but I have this issue in most of the jumpers I have connected, the
Click to expand...

Can I point out to you that when you connect a cable to the motherboard, you
are connecting a cable to a motherboard header. Jumpers are used to short
two (or more) pins together. Yes, the connectors are similar, but the whole
idea is different.
speakers was only an example.
Click to expand...

Technically directional, but practically either way will be fine.
I also have the Power LED,
Click to expand...

Directional, since it's a Diode.
the ATX Power Switch, the Reset Switch
Click to expand...

Both momentary switches... either direction is fine it's the (short)
connection you're looking for.
and a harddisk connector.
Click to expand...

Again, and LED (diode) and thus directional. If you plug a diode in the
wrong way around, it won't work. You won't break it by doing this, it's
completely safe to try a hit and miss approach. (connecting the wrong pins
together is a completely different thing altogether and could break things).
My computer sometimes
simply crashes (resets itself, tries to reboot and then halts). I wondered
whether this could be due to some jumpers connected in a wrong way.
Click to expand...

Maybe. But cables connected the wrong way around is unlikely to cause you
stability problems.

I would suggest checking your temperatures, if they are ok, replace your PSU
with a better one.
I know
there could be many other reasons for this occuring, but I really tried
many other things before and just wasn't sure about that jumper-issue. A
friend of mine told me that his computer was not stable until he changed
(rotated 180 degrees) some jumpers.
Click to expand...

Thats ridiculous. Thats like saying my speakers sound better when I use the
wires the other way round. It might be true, but it will not be a direct
result of turning the jumper around, it will be an indirect result of
correcting a bad connection either on the jumper or something else.

Ben
 
Ben said:
Can I point out to you that when you connect a cable to the motherboard, you
are connecting a cable to a motherboard header. Jumpers are used to short
two (or more) pins together. Yes, the connectors are similar, but the whole
idea is different.




Technically directional, but practically either way will be fine.




Directional, since it's a Diode.




Both momentary switches... either direction is fine it's the (short)
connection you're looking for.




Again, and LED (diode) and thus directional. If you plug a diode in the
wrong way around, it won't work. You won't break it by doing this, it's
completely safe to try a hit and miss approach. (connecting the wrong pins
together is a completely different thing altogether and could break things).




Maybe. But cables connected the wrong way around is unlikely to cause you
stability problems.

I would suggest checking your temperatures, if they are ok, replace your PSU
with a better one.




Thats ridiculous. Thats like saying my speakers sound better when I use the
wires the other way round. It might be true, but it will not be a direct
result of turning the jumper around, it will be an indirect result of
correcting a bad connection either on the jumper or something else.

Ben
Click to expand...
Or... my stereo speakers sound better when I listen to the right speaker
with my left ear and the left speaker with my right ear
 
Legend said:
Or... my stereo speakers sound better when I listen to the right speaker
with my left ear and the left speaker with my right ear
Click to expand...

I can confirm that this jumper is very uncomfortable, and looks silly,
when I turn it round.
 
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