hardware fixes (AMD K6 power consumption support)

Most older mainboards feature Socket 7 but are not optimized or even tested for high power consumption of AMD K6.
Here is a list of mainboards with their max supported setting.

Manufacturer	Model	Amps
ASUS	P/I P55T2P4 rev 3.1	12A
ASUS	TX-97 (all variations)	12A
FIC	PA-2007 rev 1.2	10A
FIC	VA-503 rev 1.0A	12A
FIC	PA-2012 rev 1.2	20A
FIC	VA-503+ rev 1.2	20A
FIC	PA-2013 rev 2.0	20A
Soyo	SY-5EH5/M rev 0.8	10A
Soyo	SY-5EH5/M rev 1.0	14A
Soyo	SY-5EMA rev 0.8	10A
Soyo	SY-5EMA rev 1.0	14A
Soyo	SY-5EH5/M rev 0.8	10A
M Tech	R581A	10A