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PSU for Radeon HD 6870.

Last response: in Graphics & Displays
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September 28, 2011 7:45:34 AM

My Specs:
CPU:Intel Core i3 2100
MoBo:ASUS P8H61 M LE
ODD: DVD RW 4GB RAM
120mm x 4 Cabinet Fans.

I will be Gaming a lot with my HD 6870 can be even more than 5hours, so i want to get a good PSU but i dont want to pay extra. I just want a budget one, and i have No plans for CFX.
Thanks.

More about : psu radeon 6870

September 28, 2011 8:12:54 AM

I am very sorry. But only Corsair, Cooler Master and FSP available here. :-(
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September 28, 2011 8:23:39 AM

I will buy from local shops. By the way the AMD site says, it requires a 600W PSU.
So will a 500W do fine??
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September 28, 2011 8:28:13 AM

i have decent old system with dual core cpu, 945 mobo with pci E 2x slot.

my question is i want to play games at max resolution of 1280x1024 or 1600x1200

i have 450W smps.

please tell me i am going to get nvidia 460x or ati 6870 can my current smps is enough?
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September 28, 2011 8:43:40 AM

^ With just 450W we cannot judge the PSU. It depends on the PSU it is. If you have any question then please Create a New Thread.
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a c 104 U Graphics card
September 28, 2011 8:58:20 AM

rickytrux11 said:
I will buy from local shops. By the way the AMD site says, it requires a 600W PSU.
So will a 500W do fine??


AMD reccomends 500W ; http://www.amd.com/uk/products/desktop/graphics/amd-rad... and they always advice more than normally needed.
A good 500W will do. From the choices you mentioned get the Corsair, you can't go really wrong with that. Preferably with 80+ certification and 40A on the 12V rail.
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September 28, 2011 9:12:24 AM

My club3d 6870 runs on a Corsair cx430 v2. I'm also using a i3 2100.

It works well and all, but I'll recommend something with a bit more beef.

See if you can find a cx500.
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September 28, 2011 9:21:07 AM

GreenDutchAlien said:
AMD reccomends 500W ; http://www.amd.com/uk/products/desktop/graphics/amd-rad... and they always advice more than normally needed.
A good 500W will do. From the choices you mentioned get the Corsair, you can't go really wrong with that. Preferably with 80+ certification and 40A on the 12V rail.


Okay, then I will get a Corsair CX 500 V2. BTW do GS 500 have any advantage over it?
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September 28, 2011 9:30:42 AM

Vervs said:
My club3d 6870 runs on a Corsair cx430 v2. I'm also using a i3 2100.

It works well and all, but I'll recommend something with a bit more beef.

See if you can find a cx500.


Do you play games for long time?
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September 28, 2011 9:42:01 AM

Sort of, but I haven't played like 5 hours straight. When you play that long it will probably get a bit warm. If you really want to same some money, then get it.

Other readers here may have more experience with the cx430.
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September 28, 2011 9:44:12 AM

I did the same thing, I was not ready to pay some extra bucks on PSU, I got a 550watt.
After that installation, my gpu gtx 460 ran fine for some weeks.
When Games became more demanding, i needed more power out of it. So it would need more wattage of course.
Now I installed a 650watt PSU, n yes, everything's good now.

Thats why I would suggest you to go for minimum 600watt PSU.
Because even if 550 watt works fine on the edge, after some time, you will need to, for e.g. add some RAM, HDD, or in case if u change a processor, got a higher one, you'll need to change the PSU again. It'll be a waste of money.
So its better to go for 20% extra money, than to buy a whole new one after your needs increase..!!
Minimum 550 watt
Recommended 600 watt.
Cheers..!!
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September 28, 2011 9:47:23 AM

Some questions, are you using only one graphx card? or planning for dual gpu?
how many hard drives you have?
any additional PCI/PCI-e cards?
how many optical drives?
And about HDD's, are they 7200 rpm, or higher, or lower??
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a c 104 U Graphics card
September 28, 2011 9:54:01 AM

The gaming series has a bit higher amps on the rails.

@Chirag ; op states no interest in cfx.
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September 28, 2011 9:56:58 AM

Chirag Borawake said:
Some questions, are you using only one graphx card? or planning for dual gpu?
how many hard drives you have?
any additional PCI/PCI-e cards?
how many optical drives?
And about HDD's, are they 7200 rpm, or higher, or lower??


I have NO plan for CrossfireX as i have metioned before.

1x 7200 SATA HDD
1x ODD, and NO additional PCI E X16.
Now what?
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Best solution

a c 104 U Graphics card
September 28, 2011 10:00:01 AM

500W IS enough. Btw make sure with those links i gave that there is enough ventilation room in your case. Sometimes psu are placed completely in the top of the system and the fans are on the top of the psu, so watch that.
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September 28, 2011 10:07:37 AM

Now according to my Calculations, you will need minimum 382 to 401 watts. But to be on safer side, I would suggest you to go for minimum 450watt or 500watt will do just great.
I am shocked to see that results though..!!
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September 28, 2011 10:09:24 AM

GreenDutchAlien said:
500W IS enough. Btw make sure with those links i gave that there is enough ventilation room in your case. Sometimes psu are placed completely in the top of the system and the fans are on the top of the psu, so watch that.


See man, my Case has 4x 120mm fans. And i dont want to get into any problem after getting a 500W PSU for saving a few bucks. If its needed then i will pay for a 600W, which will be difficult for sure but better than problems i face later. And its really becomes hard to make a decision when different people come with different suggestions.
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a c 104 U Graphics card
September 28, 2011 10:12:54 AM

Well, go for the 600W then.
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September 28, 2011 10:14:57 AM

Chirag Borawake said:
Now according to my Calculations, you will need minimum 382 to 401 watts. But to be on safer side, I would suggest you to go for minimum 450watt or 500watt will do just great.
I am shocked to see that results though..!!


I dont know whats wrong with you guys, a GTX 460 requires a bit less or same as HD 6870. If you have faced then i may also face. And one of friend runs GTX 460 with FSP SAGA II 500 with no issues! Shocked Again?
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September 28, 2011 10:25:26 AM

GreenDutchAlien said:
Well, go for the 600W then.


A Cooler Master eXtreme 600 or Corsair CX 500 V2?
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a c 104 U Graphics card
September 28, 2011 10:28:32 AM

I ran a powerhungry oc'd gtx 465, with a i7 870, 8G ram, a couple of extra led lights, 1HDD, 1DVD, two big fans on a 450W psu, without any problem.
Corsair ! CM is oke but not always with the lower priced models.
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September 28, 2011 10:43:26 AM

GreenDutchAlien said:
I ran a powerhungry oc'd gtx 465, with a i7 870, 8G ram, a couple of extra led lights, 1HDD, 1DVD, two big fans on a 450W psu, without any problem.
Corsair ! CM is oke but not always with the lower priced models.


Okay, so finally for which PSU should i go for?
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September 28, 2011 10:49:45 AM

Dude, I have 3 X 1TB's 7200rpm HDD's, + 2 Optical drives( one dvdrw and one Blu ray), + some LED's inside my case to lighten it up. It takes more than 500 watt even if I have a GTX 460.
Moreover, corei7 might take a little bit more than core i3, also I have got an SLI motherboard. SO thats why I needed 650watt PSU..!!
Yours is OK, more than OK for 500 watt, just go for Coolermaster..!!
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September 28, 2011 1:02:16 PM

Chirag Borawake said:
Dude, I have 3 X 1TB's 7200rpm HDD's, + 2 Optical drives( one dvdrw and one Blu ray), + some LED's inside my case to lighten it up. It takes more than 500 watt even if I have a GTX 460.
Moreover, corei7 might take a little bit more than core i3, also I have got an SLI motherboard. SO thats why I needed 650watt PSU..!!
Yours is OK, more than OK for 500 watt, just go for Coolermaster..!!


You say that your PC consumes more than 500W. How much power you need according to the power calculator??
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September 28, 2011 1:03:08 PM

Chirag Borawake said:
Dude, I have 3 X 1TB's 7200rpm HDD's, + 2 Optical drives( one dvdrw and one Blu ray), + some LED's inside my case to lighten it up. It takes more than 500 watt even if I have a GTX 460.
Moreover, corei7 might take a little bit more than core i3, also I have got an SLI motherboard. SO thats why I needed 650watt PSU..!!
Yours is OK, more than OK for 500 watt, just go for Coolermaster..!!


You say that your PC consumes more than 500W. How much power you need according to the power calculator??
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September 29, 2011 4:44:23 AM

Best answer selected by rickytrux11.
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October 4, 2011 4:26:09 AM

rickytrux11 said:
You say that your PC consumes more than 500W. How much power you need according to the power calculator??


According to the power calculator, my maximum power needs goes upto 561 watts. But I would be ready to add a new GPU, a couple of more HDD's.
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