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Old 11-28-2008, 01:42 AM   #1
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Default 500W or 600W PSU?

I've been planning to buy my new computer for about a month now, asking a bunch of questions and junk so here's another one:

I was looking into getting a 500W Power Supply from Newegg for $60 that price is WITH the rebate added of $20

But then on Newegg I found a 600W power supply for $30 with Black Friday deals.
I am leaning towards the 600 for price but wondering if it would fit in my case-
http://www.newegg.com/Product/Produc...82E16811119137

Should I just still get the 600 or would it be overkill on this setup:
Intel Core 2 Duo E8500- http://www.newegg.com/Product/Produc...82E16819115036

Seagate Barracuda 500gig HDD- http://www.newegg.com/Product/Produc...82E16822148288

BIOSTAR TForce TP45HP LGA 775 Intel P45 MoBo- http://www.newegg.com/Product/Produc...82E16813138123

ATI Radeon HD 4850- http://www.newegg.com/Product/Produc...82E16814102770

XIGMATEK HDT-S1283 - http://www.newegg.com/Product/Produc...82E16835233003

I tried using voltage calculators but to no avail =/
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Old 11-28-2008, 01:48 AM   #2
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Default Re: 500W or 600W PCU?

Links to the power supplies?
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Old 11-28-2008, 01:49 AM   #3
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Default Re: 500W or 600W PCU?

Don't be overly concerned with the wattage of the PSU. You need to look at how many amps there are on the 12V rails to make sure it will power your graphics card.

As for the physical size of the PSU it doesn't differ depending on wattage. That case will fit any standard size PSU in it.
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Old 11-28-2008, 01:51 AM   #4
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Default Re: 500W or 600W PCU?

http://www.newegg.com/Product/Produc...L5C-_-17182032 thats the 600W one

http://www.newegg.com/Product/Produc...82E16817341016
500W

I was reading other posts about people building their own computers, and it seems PSU is a big deal.
Can anyone confirm if either one, preferably the 600W will work with my planned setup?
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Old 11-28-2008, 02:04 AM   #5
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Default Re: 500W or 600W PCU?

They should both run your system and they will both fit in your case. It's up to what you prefer really brand wise and budget wise. I have never used either brand PSU so can't give an opinion on it although a few people on here aren't real keen on rosewill.
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Old 11-28-2008, 02:08 AM   #6
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Default Re: 500W or 600W PCU?

Lowndsey, thanks for the help so far
But when you said I have to check if it works with my graphics card, how can I check?
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Old 11-28-2008, 02:13 AM   #7
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Default Re: 500W or 600W PCU?

ATI website...or google.
Recommended is 30 AMP's on the 12 volts rails for stable power distribution (on a single card configuration).
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Old 11-28-2008, 02:17 AM   #8
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Default Re: 500W or 600W PCU?

Looks like I'm gonna have to learn alot more about rails and power supplies.
I have 1 day to do so lol
Thanks for all the help Lowndsey and I'll be sure to post back with an update of what I need or if I have a question.
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Old 11-28-2008, 02:19 AM   #9
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Default Re: 500W or 600W PCU?

The 600W psu is pushing out 38amps on 2 combined rails. You add the rails together. The 500W has 36. Personally I would go for the 600W as i have no experience with either brand ..it is certainly not overkill.

http://www.rosewill.com/products/390/productDetail.htm
look at the table there under +12V1 and +12V2
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Old 11-28-2008, 02:37 AM   #10
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Default Re: 500W or 600W PCU?

I would suggest the OCZ ModXStream Pro 500W power supply. It's a better quality unit than the Rosewill.

ATI recommends at least a 450W power supply for the Radeon HD 4850.
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