Power Supply Help 9 replies

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Shintsu

For the glory of Helghan

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9th April 2005

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#1 11 years ago

Ok, I have an old 350 W PS that came with my case (Yeah, it's actually not a junker despite what I've heard from other people about in-case PSes). Anyways, I am going to be buying a new one soon since 350 W just doesn't cut it anymore. I was looking at the BFG 7800 GS and someone said to make sure you have a 12 volt rail with 26 amps. Now I see on the side of mine and the ones I've looked at what are the 12v ones, and I want to know, which one is the volt I should look at to see how much it has. Additionally, if it's a dual (Or Triple) 12v and one is 18 amps and the other is 20, is that a total of 38 or something else?

Sorry, but these power supplies are very confusing to me. I rarely ever buy them, and these are the reasons why. Also, why are some of the ones like Antecs $170 and they're only 550 W when you can buy a 700 W of a cheaper brand (Thermaltake) for $140 or so? Is it something in the insides of the PS that I won't openly see (Like aforementioned 12v rails and other redundant features and efficiencies)? Are they really worth the extra money and would I notice a difference from a cheaper more watt PS to the more expensive slightly lower watt (maybe 100-150 W lower) PSes?

Thanks for any help, I'm totally clueless in the PS department, all I really know is more watts is more power. I hate to say, but previously I've wanted to follow the "Just buy the more expensive one, it's probably better for some reason I don't know or understand."




vikke-viking

Cheese cake

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26th September 2004

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#2 11 years ago

The power supplys from companies like antec and enermax are the realieble and stable kind. Of course you can buy one from thermaltake but I have heard some bad stories about those. Anyway antec is a really good brand and a 500W ore higher will serve you well.

Ps. Sine you are looking at a 7800GS im guessing you got AGP, why not take a look at the X1950PRO?




Bs|Archaon

I would die without GF

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15th March 2006

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#3 11 years ago

I'd go with an X1950 Pro as well, if you're on AGP. If you're not on AGP then there's no real reason to be thinking about a 7800GS anyway.




Shintsu

For the glory of Helghan

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#4 11 years ago

Well the thing is my price goes from $189 (with mail-in rebate) to $290 with no rebate. Quite a heafty chunk of change more and I still need a PS which is going to run me in the $100 range.




[CoUk]niu

I take what n0e says way too seriously

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12th March 2004

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#5 11 years ago
Shintsu;3545780 I hate to say, but previously I've wanted to follow the "Just buy the more expensive one, it's probably better for some reason I don't know or understand."

Not a bad way of thinking,as long as the more expensive one has less bling. Nice paintjobs and gold plated fangrills are pretty useless.:)




Shintsu

For the glory of Helghan

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#6 11 years ago

Yeah, I could care less how it looks if it powers all my stuff and it isn't too noisy or hot.




Bs|Archaon

I would die without GF

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#7 11 years ago

Mine is behind 3mm of aluminium, so looking good is pointless. It is quite nice though...purty blackness. :p




Shintsu

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#8 11 years ago

But back to the topic, how can I tell about the 12v rails when there are two of them or three?




Bs|Archaon

I would die without GF

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#9 11 years ago

I don't know the answer, but to be honest the rule that you've always gone by still applies - if you pay for a decent PSU, you get a decent PSU, and it'll work.




Shintsu

For the glory of Helghan

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#10 11 years ago

Alright, I suppose I'll just do that then. Really wish I knew though lol. Kinda feel stupid just buying and hoping it does what I want. Thanks for the help though.