What power supply?

[Greg0986]

My current graphics card is not very good as you can imagine, so after Christmas I thought about trying crossfire with 2 x 6870's.

My question is what power supply would I need to power 2 of these cards and the rest if my system which is in my sig? I have a budget of about £80.


I was thinking about this:
http://www.overclockers.co.uk/showproduct.php?prodid=CA-032-OC&groupid=701&catid=123&subcat=1098

Cheers,
Greg

 

[RJC]

Yes that will be plenty.

 

[Greg0986]

Oh I just checked and it doesn't have 4 PCI-e cables, only 2.

 

[stulid]

http://www.overclockers.co.uk/showproduct.php?prodid=CA-117-AN&groupid=701&catid=123&subcat=1088

Better built and has four pci-e connectors for the two cards.

 

[cmndr_andi]

Considering you budget - this would be a much better bet than that OCZ. This one does come with 4 PCIe 6 pin power cables (2 are actually 6+2 pin).

Edit: Beaten by stulid consider this a fervent recommendation.

 

[RJC]

Go with PSU below:

http://www.overclockers.co.uk/showproduct.php?prodid=CA-117-AN&groupid=701&catid=123&subcat=1088

 

[Greg0986]

I saw that but I didn't think 650w was enough.

I guess it is judging by three thumbs up

Cheers

 

[RJC]

Your system will pull 430w ~ max at full load with 2 gpu's

 

[garyfl]

i had a coolermaster gx 750 before which seems to be in your price range. i cant really suggest anything else, it was cool enough but reviews say it isnt very stable, then i got a tx850 which is great, it might be expensive but its incredibly cool and efficient, are you wanting to go modular ?

 

[stulid]

I saw that but I didn't think 650w was enough.

I guess it is

Cheers

more than enough, a crossfire 6870 system will use around 415W to a max of about 481w - http://www.anandtech.com/show/3987/...enewing-competition-in-the-midrange-market/20

 

[Greg0986]

i had a coolermaster gx 750 before which seems to be in your price range. i cant really suggest anything else, it was cool enough but reviews say it isnt very stable, then i got a tx850 which is great, it might be expensive but its incredibly cool and efficient, are you wanting to go modular ?

Yes I am, My current one is horrible because it isn't modular. I could go up to £100 if there is a better alternative.

 

[stulid]

I could go up to £100 if there is a better alternative.

No need too.

http://www.bit-tech.net/hardware/psus/2010/02/22/600-700w-psu-review-round-up/7

 

[RJC]

The Antec PSU is modular and a excellent PSU for the price.

 

[Greg0986]

Thanks everyone for your help.

The Antec it is then

 

[cmndr_andi]

i had a coolermaster gx 750 before which seems to be in your price range. i cant really suggest anything else, it was cool enough but reviews say it isnt very stable, then i got a tx850 which is great, it might be expensive but its incredibly cool and efficient, are you wanting to go modular ?

To be honest, I wouldn't go with the GX 750. According to this review it is only really a 600W unit and not a particularly great one.

However, the TX 850 is a nice bit of kit - you made a nice upgrade there

 

[garyfl]

To be honest, I wouldn't go with the GX 750. According to this review it is only really a 600W unit and not a particularly great one.

However, the TX 850 is a nice bit of kit - you made a nice upgrade there

yeah i complained to the company who pre built my pc and they just upgraded me to it free of charge, i think i won i was quite scared of the gx750, it used to shut my system off and i had an irregularity on the 12v rail, it showed as 2.4v :S

 

[stulid]

Big Fail here- http://www.hardocp.com/article/2010/11/22/cooler_master_gx_650w_power_supply_review/

 

[sunjoo2012]

Big Fail here- http://www.hardocp.com/article/2010/11/22/cooler_master_gx_650w_power_supply_review/

wow

Torture Test Results

As the Cooler Master GX 650W failed during our normal load testing it was unable to even begin the Torture Test.

i never new it was that bad