Old arcade power supply, new game - problems?

[Aleanil]

I'm running Mars Matrix (a CPS2 game) in an old R-type cab using the original power supply.  It boots, plays, has no problems at all.  However, the power supply is positively minuscule by today's standards.

It outputs:

 5V       5A
12V     0.5A

My question is simply, will I harm Mars Matrix by running it on such a small amperage power supply? 

Thanks!

[grantspain]

the only problem you will get is the psu crapping out,but to be honest the psu is more than adequate for the game board

[Aleanil]

Thanks Grantspain, I won't worry about it then.  PS are replaceable, Mars Matrix isn't so much