Title: What GPU to add? Post by: jdebunt on July 01, 2013, 07:06:07 PM Hello people,
currently i'm running with the following setup : Mobo : MSI 970A-G46 SockelAM3 + Memory : 2x Kingston HyperX Blu 4 GB DIMM DDR3-1600 CPU : AMD Phenom II X4 965 Black Edition processor - Socket AM3/AM2 + (3400MHz) HDD : old sata HDD with Windows 7 home edition (x64) Video card : Sapphire ATI HD 7970 grafische kaart (PCI-e, 3 GB GDDR5 PSU : Be quiet! Pure Power CM BQT L8-CM-630W PC voeding (630 watt) Extra fan : TRICOOL Antec 120mm Blue LED Case Fan (connected to the mobo so i assume this is also drawing some power :) ) What video card would you recommend i add to this system? My 7970 is overclocked (1085 engine clock, 1500 memory, 10% powertune) I am willing to downclock it again to normal speeds if that means it's slightly safer to add another card . Perhaps even ake out 4 GB of ram if that would make a difference :) Any tips are welcome :) Title: Re: What GPU to add? Post by: zackclark70 on July 01, 2013, 07:09:47 PM I have 3 7950s on a hx750 psu I would go for a 7950 and underclock / undervolt the cpu and run the new 7950 at 1050 core 1250 ram 0.150v core you will get 630+kh on a 7950 with those setings ( I have found the 7950 vapour x to be the best :)
Title: Re: What GPU to add? Post by: FiatKiller on July 01, 2013, 07:10:39 PM None. GPUs are nearly worthless. But another 7970 if you insist. Removing RAM never helps.
Title: Re: What GPU to add? Post by: zackclark70 on July 01, 2013, 07:11:57 PM gpus are still good for alt coins !
Title: Re: What GPU to add? Post by: jdebunt on July 01, 2013, 07:15:44 PM I have 3 7950s on a hx750 psu I would go for a 7950 and underclock / undervolt the cpu and run the new 7950 at 1050 core 1250 ram 0.150v core you will get 630+kh on a 7950 with those setings ( I have found the 7950 vapour x to be the best :) that was my initial thought aswell, but would you combine it with also downclocking the 7970 a bit or just put it in & see what happens? :) None. GPUs are nearly worthless. But another 7970 if you insist. Removing RAM never helps. I'm not mining BTC directly, i use it for altcoins :) and it's still worth the money for now, so i guess now is the time to act :) 2 7970's on a 630W PSU? Not sure that'ld work? :) Title: Re: What GPU to add? Post by: zackclark70 on July 01, 2013, 07:19:34 PM buy your self a watt meter and make sure you don't pull to much wattage from your psu and you will be fine a 7950 vapour x with the setings I posted uses less than 220w mining script getting you 630+kh
Title: Re: What GPU to add? Post by: FiatKiller on July 01, 2013, 08:21:55 PM With two 7970s, I would go with an 800 at least. You have to leave 10-20% margin because they rarely do what the rating is. And Silver or Gold rating is worth it.
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