On 21 feb, 19:45, kony wrote:
On Sat, 21 Feb 2009 02:02:45 -0800 (PST), HDI





wrote:
Hi,

I want to experiment with an old computer but the manual of the
motherboard isn't so good.

It's an EXP8661 motherbord, you can see the layout at:
http://stason.org/TULARC/pc/motherbo...ORPORATION-Pen.....

So the MS1 is the ps/2 mouse connector were I have the put in my
counter. *The connector on the motherboard has 4 pins and the counter
has 5 holes and one of them hasn't got a wire. So it's like no wire,
yellow one, blue one, red one, green one.

Can anyone help me connecting it?
BTW: can I do something wrong by connecting it wrong?

I don't recall, if I ever knew, what the typical color
coding for a PS2 port dongle was. *You have vcc (power),
ground, data, and clock lines.

With a multimeter you can determine which pin is power by 5V
when the system is on (meter ground being system ground
anywhere). *With the meter the ground pin will have
practically zero resistance to case ground. *With data and
clock, if you get them reversed it won't work, just switch
the two around and try again.

Similar for the dongle itself, by looking at a pinout for a
PS2 port, you can use the meter to check continuity to
confirm which pins in the socket each connector pin
corresponds to.- Tekst uit oorspronkelijk bericht niet weergeven -

- Tekst uit oorspronkelijk bericht weergeven -

I don't have a multimeter.

So the lines are data, data ground, vcc.

Should I connect it like this: yellow wire (data), blue wire (data),
red wire (ground), green wire (vcc)
Or: green wire (data), red wire (data), blue wire (ground), yellow
wire (vcc)

And the hole with no wire is for nothing?