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new PC options:-

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mouser:
am i reading that right that you have specced out a 380w power supply? that does not sound sufficient to me.

tomos:
It was recommended at that forum - I was wondering the same -
(have queried it there but havent got reply yet)

Could go up to 430 - do you think would that be enough
if I add more HDDs (or/ graphic card - unlikely but..) would that need even higher W?

PhilB66:
@tomos

Check out  http://www.buildyourown.org.uk/ and http://www.mysuperpc.com/ for an extensive info and guides on this topic. You should post your specs at the forum (http://www.buildyourown.org.uk/forums/ and http://forums.mysuperpc.com/). My Super PC Web site looks a bit disorganized but has great tutorials (just all the way scroll down for the links)

Carol Haynes:
Personally I would go for 450W minimum these days and if you might want to use more than one graphics card go higher (500W+). If you potentially want to build a system in the future this is one item (and possibly the case too) you might want to overspecify now so that it can still be used in your next system - you'll save money in the long term.

Most PCIe motherboards support more than one graphics card - haven't checked the spec on yours ... if it has an ATI chipset it will probably support Crossfire / nVidia boards support SLI mode. These allow two cards to drive a single monitor - or you can run two monitors side by side.

Does the mobo above have built in graphics? If not have you thought about a graphics card?

mouser:
i am paranoid about a powersupply being underpowered just because it seems like one of those things that could cause mystery problems, it's also one of the harder things to replace once the pc is built so again i'd rather be safe than sorry here.

are you the kind of person who maybe be trying to upgrade this box in a year or two? or are you the kind of person who will not likely be upgrading this computer but instead be building a new one in a few years.  if you are the kind that might upgrade, i'd rather buy a bigger power supply now so you dont have to mess with it when upgrading.  if you're not going to do that, then it doesnt matter as much.

i would think 450 would be minimum.

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