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 Posted: Sun, 11th Jan 2009 02:15 Post subject: Power Supply question |
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I have a 600 watt power supply now. I want to upgrade to a core i7 with a GigaByte GA-EX58-UD4P mobo 6GB of RAM and dual ATI 4850's in xfire mode I have 4 500GB SATA HD's a 250GB ATA HD and a 320GB USB HD. Do I need a power supply with more wattage or am I fine with the one I have?
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LeoNatan
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| Posted: Sun, 11th Jan 2009 02:39 Post subject: |
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I think for the dual 4850 you will need 800W. But you can always try if everything works and see if you can stay with that one. What 600W PSU do you have?
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nouseforaname
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Location: Toronto, Canada
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| Posted: Sun, 11th Jan 2009 03:03 Post subject: |
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A little over a $1000 USD right now. Leo its a Cooler Master RP-600PCAR. Yeah but alot cheaper than the last upgrade. QX6700, MSI 975 Platinum PowerUp Ed., 2GB Kingston KHX6400D2LL RAM, power supply, case, 2 SATA 250GB HD, Plextor SATA DVD burner and a EVGA 8800GTS 640MB. was over $2000 USD. I call it a bargain to get another video card and 4 cores Hyper Threaded.
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upstart_69
Posts: 1094
Location: Right behind you!
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| Posted: Sun, 11th Jan 2009 05:50 Post subject: |
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I say you should look around for a better one. You could probably operate the system on it however it will be maxing out the juice on the 12v. That means that the 70% efficiency(at typical load) will degrade even more at running at peak and it will be bleeding watts as well as stressing its internal components. And since it is a coolermaster I wouldnt put my trust in it not overloading and taking some of your valuable components with it.
You should be fine with anything in the 650w-750w range, provided it is by a top-tier manufacturer like Antec, Corsair(my current fave), Enermax, ect. If you plan on upgrading to higher-end video cards in near future maybe you should go past 800w, but efficiency should be more important than looking at brute wattage or you are just burning electricity for the hell of it.
And at around 100usd I don't think a new psu is a Major investment of any sorts. However it is a wise one.
Core i7 920 @ 3.8Ghz | 6GB OCZ DDR3 8-8-8-24 @ 1600mhz | eVga x58 Mobo | 2 x eVga GTX 460 SLI | Intel X25-M + 3x Seagate + WD Black = 2.75TB | X-Fi Titanium | PCP&C Silencer 750 | G15 KB | G5 Mouse | G35 Headset | Z-5500 Digital | Samsung T260HD
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| Posted: Mon, 12th Jan 2009 22:01 Post subject: |
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It will work.
Shouldn`t be a problem.
@upstart_69
lets say you burn ~5% more energy under full load with this 600 W PSU. So how many hours till your investment in a new PSU pays out?!
How much energy costs the production of one PSU?!
Well - you get the idea...
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upstart_69
Posts: 1094
Location: Right behind you!
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| Posted: Tue, 13th Jan 2009 05:48 Post subject: |
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SycoShaman
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Location: Toronto, Canada
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| Posted: Tue, 13th Jan 2009 06:56 Post subject: |
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| iNatan wrote: | | I think for the dual 4850 you will need 800W. But you can always try if everything works and see if you can stay with that one. What 600W PSU do you have? |
Wrong mate, for an 4850 or higher in Crossfire, you need atleast 1000W. Was told this buy a senior ATI tech. |
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| Posted: Tue, 13th Jan 2009 14:00 Post subject: |
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| SycoShaman wrote: | | iNatan wrote: | | I think for the dual 4850 you will need 800W. But you can always try if everything works and see if you can stay with that one. What 600W PSU do you have? |
Wrong mate, for an 4850 or higher in Crossfire, you need atleast 1000W. Was told this buy a senior ATI tech. |
LMAO!
1000w PSU is waaaaay overkill. The 4870X2 runs great, with the rest of the system, on a 625W PSU.
1000w is "recommended" for 4xGPU scenarios (like a CrossFire'd 4870X2 or 4850X2) but most definitely NOT for standard dual-GPU situations.
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SycoShaman
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| Posted: Tue, 13th Jan 2009 14:16 Post subject: |
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| sabin1981 wrote: | | SycoShaman wrote: | | iNatan wrote: | | I think for the dual 4850 you will need 800W. But you can always try if everything works and see if you can stay with that one. What 600W PSU do you have? |
Wrong mate, for an 4850 or higher in Crossfire, you need atleast 1000W. Was told this buy a senior ATI tech. |
LMAO!
1000w PSU is waaaaay overkill. The 4870X2 runs great, with the rest of the system, on a 625W PSU.
1000w is "recommended" for 4xGPU scenarios (like a CrossFire'd 4870X2 or 4850X2) but most definitely NOT for standard dual-GPU situations. |
I dunno man, thats what a tech guy told me. Fuck. I know shit about hardware
All I know is you need a min 650W PSU for a 4870x2 (check ati's site if you dont believe me) |
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| Posted: Tue, 13th Jan 2009 14:43 Post subject: |
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true that but 1000watts is overkill.
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SycoShaman
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| Posted: Tue, 13th Jan 2009 14:58 Post subject: |
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Meh, thats what I was told...guess the guy was trying to make a sale...didnt work tho.
Next time I buy hardware I no nothing about, Im gunna ask Leo or Cox and or do some research before I buy whatever it is
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Bigperm
Posts: 1908
Location: Alberta,Canada
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| Posted: Tue, 13th Jan 2009 18:03 Post subject: |
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| SycoShaman wrote: | Meh, thats what I was told...guess the guy was trying to make a sale...didnt work tho.
Next time I buy hardware I no nothing about, Im gunna ask Leo or Cox and or do some research before I buy whatever it is |
I have 2 4850 in crossfire with a 850W PS and everything runs fine.
I have 4 1 TB harddrives as well. 850watt should be plenty.
| Jenni wrote: | | I drunk. I don't fucking care! |
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| Posted: Tue, 13th Jan 2009 22:00 Post subject: |
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Why would you need a Min 650W PSU for your 4870X2 but then say a 1000W is required for a set of 4850's?
Anyway for the 900th time, looking at peak ratings is worthless. Find a power supply with beefy 12V rails that's rated under load/efficiency. You can use a quality 650W PSU for a crossfire setup like that.
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SycoShaman
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| Posted: Wed, 14th Jan 2009 12:40 Post subject: |
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@Big
I have 4 (just bought 3 more) 1 TB External hd's and a 500gb internal as my main drive. Love having the space. Never going to buy an internal again. All I do is plug my externals into a USB slot (I have like fuckin 10+ on my comp) and plug the power cord into an outlet and thats it. No opening the case, fiddling with it, screwing it in place etc
My comp has room for 3 or 4 more internals. I don't have the hands to work on comps. Im a metal worker and used to working with big things ya know? Still, I just dont have the hands or patience to install anything in my comp cept a gpu and ram
lol
My buddy, who knows nothing bout comps has a 2 year old 400gb internal hd and tried to sell it to me for 400 bucks (he needed drug money  ).  . My 1 TB externals cost 179.99 each.
@Kamel
I dunno man. The guy at the store where i bought my psu said if you run 2 4870x2 in crossfire you need a 1000W.
Like I said tho, I dont know shit about hardware except the hardware I have. So you guys are prolly right, Im just relaying the info I was told. Like i said, he was prolly trying to make a sale or something. Cuz I went in to get a 650W PSU and he asked whats it for and I told him and he tried to sell me a 900W PSU lol
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But I figure since there is someone with the same model powering a watercooled rig with about the same setup(extremely oc'd), I should be ok 
