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Question about Sapphire Radeon 7850 2GBoc

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Last response: in Graphics & Displays
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September 13, 2014 1:53:40 AM

Hi guys, I have a question about this GPU that I want to buy. I asked a couple of days ago about an 6850 1GB and I understood that it's a good GPU but is this even better? I can have it for about 90$. Also, my mobo has a PCI Express 2.0 slot. Is it a problem?

Pc specs:
Athlon II x3 435
Gigabyte GA-M720-US3
4GB DDR2 RAM
420W PSU

More about : question sapphire radeon 7850 2gboc

September 13, 2014 2:34:24 AM

So its's the best deal for the price? Also it's better than an 6870?
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September 13, 2014 2:35:00 AM

And what type of connectors will I need from the PSU?
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September 13, 2014 2:37:33 AM

EpicMe said:
And what type of connectors will I need from the PSU?


You will need one or two six pin pci-e connectors from the psu depending on the exact brand of 7850 you buy.

You will need to look at amazon, newegg, pc part picker to find cheapest prices - I am not in USA so can't tell you much.
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September 13, 2014 8:54:37 AM

Yes sapphire is good.

What brand is your PSU - if its a cheap crappy one and doesn't have even one pcie connector I'm afraid its not designed for such GPUs and you will need another PSU as well.

Otherwise, you can get molex > six pin converters but these shouldn't be used unless the PSU is capable of it - not sure if yours is!
September 13, 2014 9:40:26 AM

tambeshakunt said:
Yes sapphire is good.

What brand is your PSU - if its a cheap crappy one and doesn't have even one pcie connector I'm afraid its not designed for such GPUs and you will need another PSU as well.

Otherwise, you can get molex > six pin converters but these shouldn't be used unless the PSU is capable of it - not sure if yours is!


Well, I've looked again and its a Spire SP-ATX-420W-C1-PFC bought 1 month ago...hopefully It'll hande my system. I think I 'll get these adaptors. Also, can anything else happen when i'll plug in the GPU except just not work?
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September 13, 2014 10:46:45 AM

It may work fine but its a risk you are taking- if your psu isn't good ( I don't think yours is too good) then when the card is under load it may not receive adequate power and hence may cause Blue screens and shut downs. The PSU is the core of your system and if its bad, it is capable of destroying all your parts by supplying too high voltages - just to make you aware of the importance.
September 13, 2014 11:22:16 AM

That doesn't sound good. I think if once in a while a bsod would pop up at least I'd know that it's because I stressed the PSU too much and not do it again, but it can actually damage the parts?!Please elaborate .. So i'll have to use this only until I can get a decent PSU. Any suggestions for a budget one that would handle my system? Also I heard that the Athlon II x3 435 can be unlocked into an Phenom II. Do you have any ideas how could I do this? And doing so will take an bigger toll on the PSU?
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September 13, 2014 12:36:50 PM

How it can damage parts - over time and under load the rails of the PSU become weak and don't output the current and wattage as advertised. This can result in a malfunction where too much voltage is supplied uncontrollably and causes the power phases on the motherboard to burn out - hence damaging the components as they recieve a surge of electricity. It can also be the other way around so if the components aren't getting the correct voltages and power then they will be stressed and this will reduce their life and increase system instability.

I suggest a corsair CX500 or CX600 as a good budget PSU that will do well.


Not too sure about the Athlon II overclocking myself so I don't want to guide you in the wrong direction . Sorry :??: 
September 13, 2014 1:40:52 PM

tambeshakunt said:
How it can damage parts - over time and under load the rails of the PSU become weak and don't output the current and wattage as advertised. This can result in a malfunction where too much voltage is supplied uncontrollably and causes the power phases on the motherboard to burn out - hence damaging the components as they recieve a surge of electricity. It can also be the other way around so if the components aren't getting the correct voltages and power then they will be stressed and this will reduce their life and increase system instability.

I suggest a corsair CX500 or CX600 as a good budget PSU that will do well.


Not too sure about the Athlon II overclocking myself so I don't want to guide you in the wrong direction . Sorry :??: 


Thanks for everything, now I know what to do.
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September 14, 2014 6:04:35 AM

You are welcome

Please choose best answer, if the issue is solved - so that it helps others with the same issue as well :) 
September 14, 2014 6:25:25 AM

I'm afraid that this thread is a discussion and I can't select "best answer". Can I change it to a question?
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September 14, 2014 7:31:18 AM

Ah ok. I don't think you can change.
!