Akki's PC really needs professional help. Totally voted for him.
Been there myself with an S939 Athlon 64 X2 4800+ on an nForce3 Ultra motherboard that could only do accelerated graphics with Windows 7 in single core mode using a flaky 256MB HD 2600 Pro AGP(?!?) card with a flaky pre(historic) 80 rated PSU that kept eating HDDs, right up to 2015.
Now got two systems that're significantly better and much more stable. An 8GB E8400/2GB 750 Ti XP/8.1 build and a 32GB 4790K/4GB 960 SLI 10 build using SanDisk X400 system SSDs and Western Digital Black data HDDs with EVGA G2 PSUs. Ironically, I started the E8400 XP/8.1 build after the 4790K build to replace the Athlon 4800+ one to be able to carry on with old XP games and software when the 4790K build didn't work too well with USB devices in a dual boot configuration.
Lived on nothing but value beans and porridge, with multi-vitamin, mineral & cod liver oil pills, and no new clothes for around 2 years to do these builds. Sacrifices to Gaben had to be made to ascend to something resembling this decade's idea of PCMR goodness.
Good luck to all the contestants!