Replace that older or non-functioning power supply with StarTech.com's ultra-reliable ATXPOWER400 400 watt power supply. The ATXPOWER400 is guaranteed compatible with Intel Pentium and AMD processors and designed for an extra long-life in personal and industrial computers. It's even AMD Recommended to guarantee processor compatibility. The ATXPOWER400 power supply ensures stable system performance, using an automatic temperature control fan to move hot air away from sensitive components. A superior power filtration system is achieved through an EMI/RFI power filter. Low noise/ripple as well as short circuit protection are additional reasons why the ATXPOWER400 is the ultimate power supply for system stability.