IvanSmall 18:01 14 Sep 07

Hi, I'm thinking about getting a quad core proccessor in a few months. However I only have 305 watt power supply, could someone please tell me how powerful a PSU I need for a quad core proccessor.


P.S. I plan to get an Intel Quad Q6600.

  brundle 18:29 14 Sep 07

While the CPU obviously has certain power requirements, it doesn't work on its own - the motherboard/memory/graphics card/drives all add to the load - power requirement for a CPU alone is meaningless. Seeing as you haven't said what other kit you will be using, opting for a decent branded PSU of at least 500w will be enough, unless you use dual graphics cards in which case you will need to make sure the 12v amperage of your chosen PSU is enough.

  citadel 19:02 14 Sep 07

get one with the 80% + logo, this will be a quality psu and save on your electricity bill.

  Fruit Bat /\0/\ 20:21 14 Sep 07

If renewing a PSU check:

1. The physical size of your PSU, some are hard to replace due to being a non standard size.
2. The amount of power need from the PSU don't skimp

1. Physical Dimensions

Besides the specs and form factors, the physical dimensions are also important factors in selecting a compatible power supply. Here is an outline of the physical dimensions of most standard power supplies:

# ATX: 6x3.5x5.5", HxWxD. Most common. Uses 4 mounting screws.
# Mini-ATX: 5x3.5x5", HxWxD. Rare size. Uses 4 mounting screws. Can be used in a regular ATX case, but often not the other way around.
# MicroATX: 5x3x4", HxWxD. Use 3 mounting screws. Not interchangeable with ATX or miniATX.
# Flex ATX: Even smaller than Micro ATX. Various sizes according to case specs; often not interchangeable.

Use the data above to determine if a particular power supply would fit your case.

The quality of a power supply can be estimated by its weight. While this is not a true scientific or thorough measurement of the power supply reliability, it is nevertheless a very simple and easy way for ordinary PC users to estimate and compare the quality of a power supply.

2. Power supply calculator click here

Guide to changing PSU
click here
click here

  harps1h 20:59 14 Sep 07

it would appear to be out of date as it doesn't even mention dual core or PCI -Express slots

  Totally-braindead 22:53 14 Sep 07

The first thing to ask is, can your motherboard even take a quad core processor. If it can't then all other questions are to a certain degree irrelevant as you would need a new board as well and perhaps new memory etc etc.
You might be better of getting a new PC.

A quad core processor from what I have been able to read on the subject will take approximatly the same as a dual core so if your power supply will power a dual core then it "should" be ok for the quad.

Mind you personally I'm with the others and would definatly be fitting a new power supply regardless of whether it would cope or not.

  woodchip 22:59 14 Sep 07

IF its a new AMD it needs less power

  IvanSmall 08:39 15 Sep 07

Ok thanks for the advice.

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