Have you looked at conection monitor cable motherboard yet?

http://www.pinball2000.de/
try sending an email to martin wiest from pinball 2000.de click his name on the bottom of site maybe he knows!
Real nice guy

how is the voltage and cpu power jumper set?

here is some text from martin wiest his site pinball 2000.de
maybe cpu not enough power???? doesnt hurd to check

All original P2K boards that I found so far were jumpered for 233 Mhz operation, that means a busclock of 33 Mhz and a multiplyer of 7. This was done, although many games I found used a 266 Mhz CPU. But is this speed really needed?
RFM works sufficent with 180 Mhz while SWE1 works fine with 200 Mhz. So it is a good idea to reduce the speed, which the causes board and CPU to stay cooler and longer alive. This can be done in the easiest way = reducing the busclock from 33 Mhz to 30 Mhz (that makes the CPU run with 7*30Mhz):
On the Board with version V2.0 inscript you have to change on JP4 from A0 B1 to A0 B0
On the Board named 586GXM-AV you have to change JP2 from 2-4 1-3 to 4-6 3-5
You could also reduce the multiplicator from 7 to 6, but I do not think that this is really necessary.
Cooooooler gets the CPU, when you reduce the CPU core voltage. Most of the used Media GX CPUs 'need' 2,9V, what is printed on the CPU. In the meantime I found 200 Mhz CPUs, that only need 2,2V. You may want to reduce the voltage to the lowest value, where the CPU still runs stable. Try it!
There are 4 voltage jumpers on the mainboard. They work very simple:
To a base voltage of 2V the jumper adds 0,1V (=V1 or 1-2) ; 0,2V (=V2 or 3-4); 0,4V (=V3 or 5-6) and 0,8V (=V4 or 7-8).
So the lowest voltage you can have is 2,0V when all jumpers are open and 3,5V when all are set. If you set e.g. V1 and V8, which is the default, you get 2,9V. Have fun with your trial. Addon: When your P2K date no longer runs for shure, replace that CR2035 battery on your motherboard (just 1$).