Need help pushing the envelope on a dusty old FX 4100

http://www.overclock.net/t/1348623/amd-bulldozer-and-piledriver-overclocking-guide-asus-motherboard#

This was the main guide I which I used to OC my procc to 4.2GHz but the problem now is that whenever I wanna go to 4.3GHz and go according to the instructions, the Prime95 FFT test fails and my PC shuts down no BSOD or freezing, just shuts down and takes me to BIOS to reduce the settings. The guide claims that it can get upto 5GHz but I would be very happy with a stable 4.5 or 4.4 and I have seen quite a few people reach that number such as http://www.overclockers.com/forums/...(3-8GHz-Turbo)-Socket-AM3-95W-Quad-Core/page1 this guy.
Any help would be appreaciated.
Here are the screenshots I took({ardon the angles, I used my mobiles, dont really know to crop and stuff)

Did you add more voltage when you tried to clock higher? Also what are you temps?

I really don't remember, but I had an FX-4100 for a day (in system, had it for like a year) but I think for 4.5ghz it was in the realm of 1.45v. it's been a while, I had a 955BE at the same time, so I was just messing around with the 4100.

You'e gonna need in he neighborhood of 1.5 volts to reach 4.5 ghz range. What are you cooling it with? Both low voltage and high package and high socket temps can cause instability. Are you monitoring those two temps under load?