Corsair VX450W? Nice power supply, I'm a sucker for corsair branded power supplies

BTW, AFAIK corsair doesnt actually make any power supplies, they just rebrand other power supplies. Mostly seasnoic, who are always very good, and quite often the corsair versions are cheaper.

Unless you are using a corporate computer, or a small case (some mini ITX and a few micro ATX cases have small power suplies) the PSU should fit no problems.

As for the connectors, there has been some corporate machines with non-standard ATX power connectors (mostly dell). They are rare, and pretty old, and your motherboard (Abit SG95) has all standard connectors, so you wont have any problems with that.

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Just a follow up to say I installed a Corsair 430w today (a doddle!) and things are a great deal quieter now. Not silent, but a hell of a lot better than before. Again, thankyou cascade9 and TobiSGD.

No problem, glad it helped.

BTW, if you want to drop your noise level more, either the CU or GPU heatsink/fans would be the next thing to work on.

And, of course, the case fans.

Haha! My initial enthusiasm, and relief at having ripped out the old power supply has subsided a day in: I can hear this thing droning on too! The contrast had me, i think. I'm really quite depairing of this machine, having spent all my time thus far trying to kill its noise, and little of what I want to do. I might sink some money into a 'new', quiet machine (if I can find one!), and sell this on, as I seem only to have wasted time and money on it so far.

Buying a 'quiet' system might end up costing more than fixing your current system. Most of the 'quiet' systems are Atom based as well, and that could be a bit slower than your current CPU.

About all that could be making much noise is the CPU and GPU heatsink/fans, and case fans (if you have any). You'd be better of getting a silent PCIe video card (nVidia GT220, GT430, GTS450 or ATI/AMD 5450/6450, 5570, 5670). A decent heatsink with a quiet 120mm fan should take care of the CPU, and replace any 80mm/92mm/120mm case fans with quieter models.

BTW, once you do get the noise level down, you might be suprised at what noises you notice that have never been audible before. I ran a very quiet system for years, and you know what used to annoy me? The %^&#*! HDD rattling...