20% Overclocking Woes

[iron_chief]

I performed the 20% overclock on two consoles, a VA0 and a VA1. Both seem to be exhibiting stability issues on most games. Usually freezing of gameplay, while the music continues. I haven't really been keeping a list, but the minority of games play fine. I can say Capcom games will freeze almost every the time.

Funny thing is the VA0 seems to last a little longer before freezing, which is leading me to think that maybe it's heat? I replaced the thermal pads on both with arctic cooling ones, and the VA1 has the Dragoncity fan. I tried several different PSUs.

Question is, can anyone share their 20% overclock experience? Maybe list some games that play fine so I can compare?

Note the VA1 was previously 10% overclocked (which, from what I understand, still only provides a 20% overclock when switched on) and that overclock is totally stable.