Quad Core? >700W PSU should be ok...

Search for 500W, your system required 460W

less than RM300 (you stated) for >500W, i think it's impossible but not sure if in Garage Sales though...i must recommend you, fork some money ±RM450 to get even better PSU with future-proof solution, say, >500W is a good idea...no offense, but avoid Tt PSU (some model proven good, but not sure which is it), get Silverstone, OCZ, FSP, Seasonic and PC&PP (Rare...)

oh... the need for higher PSU becoz of the Graphic card eh....???
But what if my current graphic card is X800GTO...?? will it support??
It has on board power plug...

anywhere in 450W~550W should be allright for your system specs

It means that 400W PSU isn't sufficient for my system? My PSU was being strained before it died? Anyway, Acbel is a bit too expensive for me. I'm considering CoolerMaster now. Is it more reliable than those chapalang ones? My budget would be around RM150. Thanks.

Guys, I been reading alot of article about PSU 12v rail stuff and in the end I still confused as before.

I am not quite sure what is the difference between single rail and double or even quad rail PSU.

According to some article, they said single rail psu kinda of old school stuff and most of those latest gadget at least dual rail to operate properly as the second rail will provide 'cleaner' power to hardware.

Some article said that single rail PSU is very useful those noob like me that dont know how to balance those multiple rail.

Conclusion, I am confused. Abang sniper69 said 560w Silverstone Zeus 560w 38a single rail is very good. But I saw a Tagan Dual Engine 600w, written on the PSU, 48A quad rail, TG600-U25 and was very interested in that.

But if I really to 'balance' the quad rail, i will go for SS Zeus because I know nut about electricity stuff. So what do you guys think? thanks ya

    *   Some PSU makers are using 12V2 to supply more than just the 2x12V or 4x12V connectors. It is often used to power the 6-pin 12V PCIe outputs as well.
    * Many PSUs marked as having dual (or more) 12V lines actually have only a single 12V line - they do not feature two 240VA current limiters specified by ATX12V v2.xx; they have only one Over Current Protection (OCP - current limiter) for the single 12V line.
    * The 240VA current limit is considered a high cost, useless annoyance by most PSU makers. If multiple 12V lines are used, because the vast majority of components now use mostly 12V, the 18~20A limit for any line means that the precise power distribution to the various 12V output connectors can become critically important in some cases.
    * The engineers point to the many high power pre-V2.xx ATX12V PSUs that had as much as 30A on a single 12V line. As a product class, those have not proven to be any more dangerous in any way than other ATX12V PSUs. Even if exceeding 240VA in a single wire run was dangerous, this is extremely unlikely to occur in a PC because 12V is distributed to many different components on many different wire runs.

What does all this mean? The safety benefit of dual 12V lines is questioned by the engineers I spoke with. There are many downsides to multiple 12V lines, including higher cost and the extra headache of ensuring adequate 12V current for all the components in complex, high power systems. For the consumer who is trying to make a choice among the myriad of PSUs available on the retail market today, the most practical approach regarding dual 12V lines and power capacity is to consider only the combined 12V current capacity.

Why did multiple 12V rails come about?
Multiple rails came about because the EU mandated that the power on a single rail should not exceed 240VA (12V x 20A). Intel then stipulated in the ATX12V v2.xx standard that if the power on a 12V rail was likely to exceed 240VA, a second 12V rail needed to be engineered. For practical purposes, a limit of 18A was used, allowing for 2A headroom. Manufacturers replied by mass-producing multiple rail power supplies, using several types of engineering. Some power supplies are well engineered, and the 12V rails are truly separated with separate transformers. However, others draw power from one single transformer and the rails are only separated after transforming takes place. The issue with multiple rails is that the power per rail is relatively low, which unfortunately often results in the use of inferior parts.

Do we really need multiple 12V rails?
The answer is simple: no, we do not. As stated above, there are high-end power supplies with one single 12V rail that are SLI certified. These single 12V rails are rated at >30A, and thus likely build with high-quality parts. This is also confirmed by Intel, who unofficially dropped the 240VA standard in spring 2005, actually re-instating single 12V rail power supply units as an accepted standard. It is interesting to note that the Siverstone SST-ST56ZF 560W (single 12V rail, 38A) is SLI certified for Dual GeForce 7900 GTX or Dual GeForce 7800 GTX 512 MB, while its "bigger" brother, the Silverstone Zeus SST-ST65ZF 650W lacks this certification, although it is certified for all other SLI configurations and delivers 42A on the combined 12V rails. The problem likely is that it has a bit of an odd distribution of current along quadruple 12V rails (13A, 18A, 16A, 8A). Thus, this is an example where the single rail PSU is preferable over the multiple-rail PSU. On the other hand, there are many really well engineered and well built multiple-rail PSU. This FAQ is only meant to point out that multiple rails are not a necessity for a good PSU.