Resetting explained by a user need that info again

[Maruku]

Awhile back a user explained the procedure of how to repair your dreamcast with reversing the fan flow and altering pins I think.

I discovered this information by searching for Gdrom, laser, resetting but searched lately and discovered no information which matched the one I discovered back then.

So please help me I and currently playing Powerstone 2 the retail version not the backup and it keeps reseting ever so often which does bug me.

So please help with a step by step solution to repair this problem as I would be most gratefull.

Thankyou