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[Official] AMD R9 280X / 280 & 270X / 270 Owners Club - Page 494

post #4931 of 9745
Quote:
Originally Posted by JaredLaskey82 View Post

Of course they have to be the same. It will break one of the cards. They have to be in sync for gpu clock. There should be a way in your overclocking software to sync them together.

So how option that shows me is the clock Toxic (in the case would have to raise the Asus 1070Mhz to 1150MHz)....

But obviously I will not stay with CrossFire being my friend wants to buy Asus for Bitcoin Mining and the price he wants to pay'll try to get another 280X Toxic or perhaps a 290x Toxic when release biggrin.gif

In my country an Asus R9 280X DC2 Top is U$ 650 since i can buy on ebay with the rest of the money I have saved and buy a 290x our 280X Toxic on my country for U$ 800....
post #4932 of 9745
Quote:
Originally Posted by Recr3ational View Post

Man I think it's way overpowered to have two. No games is going to be optimised to use both gpus. Reason why I bought 2 x 280xs is because I have to have two cards. I hate the look of a single card.
Quote:
Originally Posted by cremelo View Post


So how option that shows me is the clock Toxic (in the case would have to raise the Asus 1070Mhz to 1150MHz)....

But obviously I will not stay with CrossFire being my friend wants to buy Asus for Bitcoin Mining and the price he wants to pay'll try to get another 280X Toxic or perhaps a 290x Toxic when release biggrin.gif

In my country an Asus R9 280X DC2 Top is U$ 650 since i can buy on ebay with the rest of the money I have saved and buy a 290x our 280X Toxic on my country for U$ 800....



my bad, I thought Cremelo had 2x290's. the 280x Asus DCII does have 2xDL-DVI but the Sapphire only has 1x DL-DVI.
Maybe its firmware of the 280x that can allow both cards interfaces to be used at the same time.

and 2x7970 barely get me 96 fps in BF4.
2x290's OCd underwater would be better.
post #4933 of 9745
Quote:
Originally Posted by passinos View Post


my bad, I thought Cremelo had 2x290's. the 280x Asus DCII does have 2xDL-DVI but the Sapphire only has 1x DL-DVI.
Maybe its firmware of the 280x that can allow both cards interfaces to be used at the same time.

and 2x7970 barely get me 96 fps in BF4.
2x290's OCd underwater would be better.

Get 2x 280x? Under water?
Mine gets over 120fps. Even though I don't even need it that high.
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post #4934 of 9745
Quote:
Originally Posted by Recr3ational View Post

Get 2x 280x? Under water?
Mine gets over 120fps. Even though I don't even need it that high.

got 2x 7970's right now (1 Ref on water the other non-ref on air)

I need 2x DL-DVI and a waterblock for 2nd non-ref card.

My plan was to get One 280x with 2xDL-DVI that I can get a water block for (maybe Asus DCII) and hope that if its primary GPU I will get the 2x DL-DVI when I CF to my 7970.
post #4935 of 9745
Quote:
Originally Posted by Amph View Post

i have a strange problem with my rig

for now i'm running with only two 280x, 1 is the old manufacturer with 0.39 bios and hynix memory, the other with elpidia bios 0.43

now if i put the hynix one in the first pci-e slot and the elpidia in the second, the hynix run 15° hotter(already this make no sense, it doesn't matter if there is the cpu near it), but if i swap it with the elpida(so elpidia in the first and the hynix in the second slot), result is the elpidia run only 8° hotter

something is very wrong with the motherboard, which is an old asrock extreme 6 p67

all this whith mining, the problem persist even with cooler algo like x11 or heavycoin algo

i solved my problem

the hynix on the first slot was causing problem, now in the third and the elpidia in the first all ok, only 5° diff temp
post #4936 of 9745
fired up the HIS utility today, and saw that my 270x's vddc was on 1300mV(its normally on 1200), which is like the max i think for the 270x?(not sure) could this have done any sort of damage?(i was just idling and playing dota2 anyway) im very conservative with adjusting my voltage, and i was just surprised that it was somehow set on max.
Edited by Spade616 - 3/25/14 at 9:16pm
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post #4937 of 9745
One of my cards or my psu is near death.. cant figure it out but a strange fan scraping type noise happens only under load (not a fan have checked all of them and they run at constant speed so shouldnt be affected by load anyways). Cant pinpoint the sound but i think somethings about to give because the sound is seemingly progressively getting worse frown.gif
Edited by dmfree88 - 3/26/14 at 12:10am
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post #4938 of 9745
Quote:
Originally Posted by dmfree88 View Post

One of my cards or my psu is near death.. cant figure it out but a strange fan scraping type noise happens only under load (not a fan have checked all of them and they run at constant speed so shouldnt be affected by load anyways). Cant pinpoint the sound but i think somethings about to give because the sound is seemingly progressively getting worse frown.gif

Scraping? OR coil whine?
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post #4939 of 9745
Thread Starter 
Quote:
Originally Posted by Spade616 View Post

fired up the HIS utility today, and saw that my 270x's vddc was on 1300mV(its normally on 1200), which is like the max i think for the 270x?(not sure) could this have done any sort of damage?(i was just idling and playing dota2 anyway) im very conservative with adjusting my voltage, and i was just surprised that it was somehow set on max.


I don't think unless your core voltage is stuck there even at idle, it will be a problem. Is there a box with force constant voltage that is checked or something, What is your voltage at idle?

My core volts go up to 1.275 or so even thought the VDDC is 1.216.
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post #4940 of 9745
Quote:
Originally Posted by dmfree88 View Post

One of my cards or my psu is near death.. cant figure it out but a strange fan scraping type noise happens only under load (not a fan have checked all of them and they run at constant speed so shouldnt be affected by load anyways). Cant pinpoint the sound but i think somethings about to give because the sound is seemingly progressively getting worse frown.gif

What kind of noise and where does it come from?
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