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Old 05-21-2008, 10:26 PM   #1
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Default Building new computer; somewhat concerned

My current computer is pretty nice, not gonna bother listing off all the specs but having a 500 watt power supply has worked perfectly with a good video card, 2 gigs of ram, 2 HDDs, etc.

I'm building a new one that has dual Radeon HD 3870s 512mbs, 4 gigs of ram (two OCZ Reaper sticks of 2gb each, 240 pin DDR2 1066), an ASUS M3A32-MVP Deluxe AM2/AMD 790FX ATX mobo, a 150g 10,000RPM WD Raptor HDD, your typical CD/DVD burner, a G5 mouse and a standard keyboard, along with a Creative XtremeGamer sound card, and a AMD Athlon 64 X2 6400+ Dual Core Processor.

It's going in this case:

http://www.newegg.com/Product/Produc...82E16811103014

The power supply I ordered said it was CrossFire ready and such, and is 750watt. I was looking at the same cards on an AlienWare computer earlier today to compare how much money I was saving and it said you had to have a 1000watt power supply to run them. Now I'm nervous cause my order has already been shipped. Anyone know how much power I'd be needing?
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Old 05-21-2008, 10:32 PM   #2
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Default Re: Building new computer; somewhat concerned

the case is kinda cheesy in my opinion, but thats just my 2 cents. i hate to say this but you may want to go intel and get c2d e8400. those oc to 4ghz easily. god i hate saying that (im an amd fanboy), but intels oc so much better. i have the athlon 6000+ and its great, but for $20 more than what I paid for it, I could have had an overclocking montster...still a good build though. oh and 750 watts is plenty, 650 is fine for 2 8800gts' in sli, so two 3870's in crossfire should be fine. as long as you have enough leads.
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Old 05-21-2008, 11:17 PM   #3
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Default Re: Building new computer; somewhat concerned

750 watts will be plenty. AMD recommends at least 550 watts for Crossfire operation.
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Old 05-21-2008, 11:28 PM   #4
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Default Re: Building new computer; somewhat concerned

750 watts should be plenty alien ware just wants your money. i have an 8800gt and 2 125 watt cpu's and 4 hard drives and my puter only uses like 750 watts out of 1100 watt psu i bought.

750 watts should be plenty alien ware just wants your money. i have an 8800gt and 2 125 watt cpu's and 4 hard drives and my puter only uses like 750 watts out of 1100 watt psu i bought.
I was considering that case but it looked kind of cheaply built
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Old 05-22-2008, 01:16 AM   #5
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Default Re: Building new computer; somewhat concerned

thanks a bunch guys, i'm a bit more relaxed with my purchase now. the case does look a little cheesy and it's definitely not as solid as my antec case, but i live in southern california in an ancient house with no air conditioning so the fans really appealed to me. heat has been a real pain in the past.
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Old 05-22-2008, 12:04 PM   #6
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Default Re: Building new computer; somewhat concerned

Not the Phenom 9850 BE?
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Old 05-22-2008, 03:56 PM   #7
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Default Re: Building new computer; somewhat concerned

You'll be fine with a 750W Power Supply. That's actually more than you'd need with that setup.

Good luck with your build, and don't hesitate to ask us build questions!


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Old 05-22-2008, 04:01 PM   #8
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Default Re: Building new computer; somewhat concerned

Alienware is owned by Dell. That should be enough to let you know that a 1000 Watt "requirement" is bologna.
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